ORIGINAL_ARTICLE
Biodiversity and Population Dynamics of Natural Enemies in the Western Desert Agro-Ecosystem, Egypt
Extension of the newly reclaimed areas for agriculture in Egypt has obviously affected the microclimate of the insect pests, which seriously threatens the cultivated field crops. Besides, the role of the major natural enemies must be carefully understood. Therefore, a field study was conducted in El-Farafra Oasis, Western Desert, Egypt to assess biodiversity and population dynamics of major natural enemies found associated with three field crops (faba bean, cotton, and alfalfa) by sweep-net and beat and shake sampling. The species diversity of natural enemies included 27 species, 23 genera, 14 families belonging to six orders and the total abundance of these species was 5098 individuals sampled during 2018 and 2019. The most common insect order was Coleoptera (composing 42.2% of the total abundance) followed by Hymenoptera (28.1%) and Neuroptera (17.8%), whereas the smallest number of individuals found in Odonata (2.1%). Similar population dynamics of natural enemies in the three crop fields were observed during the two seasons, and most species showed a positive correlation with temperature and negative correlation with relative humidity. The values of species diversity, richness, and evenness indices were higher in the alfalfa field (2.529, 2.623, and 0.846, respectively).
https://eajbsa.journals.ekb.eg/article_116977_b32b6f60fd14456d6cd04a425e348ef9.pdf
2020-12-01
1
14
10.21608/eajbsa.2020.116977
El-Farafra Oasis
field crops
biodiversity
Population dynamics
natural enemies
Wael
EL-SHEIKH
wael.elzaher@agr.bsu.edu.eg
1
Department of Plant Protection, Faculty of Agriculture, Beni-Suef University, Egypt, Beni-Suef 62511, Egypt address:
AUTHOR
Ahmed,
El-Kenway
2
Biological Control Department, Plant Protection Research Institute, Agricultural Research Center, Egypt
AUTHOR
Mustafa,
Soliman
3
Department of Entomology, Faculty of Science, Cairo University, Giza, P. O. 12613, Egypt
AUTHOR
ORIGINAL_ARTICLE
Correlation Between the Incidence of Datepalm White Scale Insect, Parlatoria blanchardii and Abiotic Factors
The seasonal incidence of P. blanchardii on datepalm was mild during May and June and then on the onset of monsoon its population increased and reached to maximum during December and January months. The highest population of this pest was recorded during the month of January while, minimum in the month of June. The scale population showed a significant negative correlation with maximum and minimum temperatures. While non-significant negative correlation with maximum relative humidity and rainfall. However, minimum relative humidity had a significant negative correlation.
https://eajbsa.journals.ekb.eg/article_118208_138a42000c74ab9d6ae244659676bb64.pdf
2020-12-01
15
21
10.21608/eajbsa.2020.118208
Temperature
relative humidity
Rainfall
Scale insect
Rajendra
Kumar
rajendrajhatwal@mail.com
1
Department of Agricultural Entomology, College of Agriculture, Swami Keshwanand Rajasthan Agricultural University, Bikaner, Rajasthan-334006, India
AUTHOR
A.
Naqvi
2
Dept. of Entomology, COA, Bikaner & Incharge of Dateplam Research Centre, SKRAU, Bikaner-334006, India
AUTHOR
ORIGINAL_ARTICLE
Taxonomical Revision of The Tribe Coccinellini (Coleoptera: Coccinellidae) In Egypt
The study aims to investigate the reliable identification members of the tribe Coccinellini, because of their potential as biological control agents, as predators of aphid insect pests, and other soft-bodied insects which, threatened the major crops. The surveys were conducted in twelve governorates represent the most geographical regions within, Egypt. Specimens were collected regularly during the years of 2017- 2019, and some species have dispersed widely, and others are presented in one site. Totally, 9 species, subspecies, and more than 29 aberrations, belonging to two species Coccinella undecimpunctata, and Hippodamia variegata, classified into four genera within the tribe Coccinellini. Morphological characters especially the genitalia were studied with the morphometric measurements. Key to genera and species were constructed, and the illustration to the most effective characters were provided, with the local and world distributions for each species.
https://eajbsa.journals.ekb.eg/article_118766_fe7fa1678165040123c932b745d1a443.pdf
2020-12-01
23
47
10.21608/eajbsa.2020.118766
Coccinellinae
Coccinellini
Genera
Morphphology and Taxonomy
Abdel-Hakam y
El-Saeady
1
Department of Plant Protection, Faculty of Agriculture, Al-Azhar University, Nasr City, Cairo, Egypt
AUTHOR
Sherif
Hafez
2
Department of Plant Protection, Faculty of Agriculture, Al-Azhar University, Nasr City, Cairo, Egypt
AUTHOR
Mohamed
Abied
3
Department of Plant Protection, Faculty of Agriculture, Al-Azhar University, Nasr City, Cairo, Egypt
AUTHOR
Mohammed
Abied
bedewymmm80@azhar.edu.eg
4
Department of Plant Protection, Faculty of Agriculture, Al-Azhar University, Nasr City, Cairo, Egypt
AUTHOR
ORIGINAL_ARTICLE
Evaluation Efficiency Sticky Traps on Attraction Whitefly, Trialeurodes vaporariorum on Strawberry Plants Under Glasshouse Conditions
This study was carried out to evaluate efficiency sticky traps on attraction Trialeurodes vaporariorum (Westwood) (Homoptera: Aleyrodidae) on strawberry plants Fragaria ananassa (L.) (Three strawberry varieties i.e. Sweet charli, Chandler and Festival) under glasshouse conditions at two locations (governorates), Nobariya (Behera governorate) and Perkash (Giza governorate) during season 2019/2020. This study contains three experiments; the first experiment aimed to evaluate the efficiency color of the sticky trap on attraction T. vaporariorum throughout comparison between four colors (yellow, red, white and blue). Results showed that the traps which have yellow color more efficiency on attractive T. vaporariorum than others which have (blue, red, and white) color, respectively. Second experiment aimed to evaluation efficiency height of the yellow sticky trap on attraction T. vaporariorum through comparison between four heights (2m, 1.5m, 1m and 0.5m) above the ground. Results showed that the trap which have 2m height above the ground more efficiency on attractive T. vaporariorum than others which have (1.5m, 1m and 0.5m) heights, respectively. Third experiment aimed to evaluation efficiency orientation of the yellow sticky trap on attraction T. vaporariorum through comparison between four orientations (North, South, East and West). Results showed that had no clearly effect of the trap orientation on attraction T. vaporariorum
https://eajbsa.journals.ekb.eg/article_118767_b3dac8479bf054ae792a71c1821a14b6.pdf
2020-12-01
49
55
10.21608/eajbsa.2020.118767
Sticky traps
Trialeurodes vaporariorum
Fragaria ananassa (L.)
glasshouse conditions
Marwa,
Mousa
1
Plant Protection Research Institute, ARC, Dokki, Giza, Egypt
AUTHOR
Marwa,
Abd-Allah
2
Plant Protection Research Institute, ARC, Dokki, Giza, Egypt
AUTHOR
Emam
S
dr.ashrafsalah@yahoo.com
3
Plant Protection Research Institute, A.R.C., Dokki, Giza, 12618 Egypt
AUTHOR
ORIGINAL_ARTICLE
Effect of Different Host Plants on The Different Haemocyte Counts and Haemocyte Viability of Larvae of Spodoptera littoralis and Agrotis ipsilon
The present study aimed to investigate the effect of different six host plants namely, Cabbage, alfalfa, Jaw’s mallow, lettuce, turnip, and castor leaves on the total haemocyte count (THC), percentage of haemocyte viability, and the percentage of each type of haemocyte (differential haemocyte count, DHC) in Spodoptera littoralis and Agrotis ipsilon fourth instar larvae. There are five types of haemocytes in A. ipsilon and S. littoralis larvae; Prohaemocyte, Plasmatocyte, Granulocyte, Spherocytes, and Oenocyte. Results recorded the highest value 13.3±0.68 of Prohaemocyte at lettuce and the lowest value 9.3 for Cabbage, alfalfa and turnip. On the other hand, Prohaemocyte recorded the highest value 12.6 ± 0.9 in the case of castor feeding and 8.7 ± 0.3 for turnip for S. littoralis. Plasmatocyte recorded 45.3 ± 2.9 cells/mm3for A. ipsilon feed on turnip and 47.3 ± 1.8 cells/mm3for S. littoralis feed on lettuce as the highest value while Granulocyte recorded 33 ± 4.1 and 35 ± 0.7 for A. ipsilon feed on Jaw’s mallow, respectively. Spherocytes recoded 15.3 ± 0.9 and 12.3 ± 0.9 for A. ipsilon and S. littoralis feed on alfalfa. Finally, Oenocyte recorded 7.7 ± 1.5 and 7.3 ± 1.4 for A. ipsilon and S. littoralis feed on castor. Total haemocytic count recorded 29 ± 0.3 and 36 ± 0.75 cells/mm3 as the highest value when both A. ipsilon and S. littoralis feed on Alfalfa. Also, the haemocyte viability % recorded the highest value 91.5 ± 2.6 and 96.2 ± 0.8 % for A. ipsilon and S. littoralis feed on feed on Alfalfa. The result recorded increasing DHC level after feeding of the fourth larval instar of S. littoralis and A. ipsilon on different plant hosts such an increase in DHC gives an impression that blood cells may share in detoxifying. The most obvious activity of haemocyte is phagocytosis. In this context, the most active phagocytes are the Plasmatocyte, Plasmatocyte which was implicated in the encapsulation of necrotic tissues.
https://eajbsa.journals.ekb.eg/article_118768_a9b7a9e8a3a5a7d69339368e0d96a3ef.pdf
2020-12-01
57
63
10.21608/eajbsa.2020.118768
Haemocyte count
haemocyte viability
Spodoptera littoralis and Agrotis ipsilon larvae
El-Khayat,
F.
1
Faculty of Agriculture, Moshtohor, Benha University
AUTHOR
Hassan
Dahi
hassandahi@yahoo.com
2
Plant Protection Research Institute, Agricult. Research Center, Dokki, Giza, Egypt
AUTHOR
Tawfik,
M.
3
Department of Plant Protection, Faculty. Agriculture, Tripoli University, Libya
AUTHOR
El-Shewy,
M.
4
Faculty of Agriculture, Moshtohor, Benha University
AUTHOR
ORIGINAL_ARTICLE
Two New Species of Caloglyphus Berlese, 1923 (Acari: Acaridae) from Soil in Egypt
Two new mite species of the genus Caloglyphus Berlese, 1923 (Acari: Acaridae) are described and illustrated based on deutonymphal stages collected from mango orchards in Assiut, Upper Egypt. The new species, C. mangiferus sp. nov. and C. similares sp. nov., were extracted from soil samples under the mango trees. The new species are characterized by having a pair of short peduncles globosely setae situated dorsosublaterally on the idiosoma.
https://eajbsa.journals.ekb.eg/article_120602_776ca217a9ee400a3b06ad36bc9ae10a.pdf
2020-12-01
65
72
10.21608/eajbsa.2020.120602
Acari
Acaridae
Caloglyphus
new species
Taxonomy
Egypt
Eraky,
A.
seraky53@yahoo.com
1
Plant Protection Department, Faculty of Agriculture, Assiut University, Assiut 71526 Egypt
AUTHOR
Fatma
Marei
2
Department of Plant Protection, Faculty of Agriculture, Assiut University, Assiut 71526, Egypt
AUTHOR
Mohamed
Nasser
3
Department of Plant Protection, Faculty of Agriculture, Assiut University, Assiut 71526, Egypt
AUTHOR
Mohamed
Negm
waleednegm@aun.edu.eg
4
Department of Plant Protection, Faculty of Agriculture, Assiut University, Assiut 71526, Egypt
AUTHOR
ORIGINAL_ARTICLE
Heat Requirements for the Fall Armyworm Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae) as a New Invasive Pest in Egypt
The present study is the first attempt in Egypt which focused on determining the development rate of Spodoptera frugiperda at different constant temperatures, the number of degree-days (DD’s) required for each stage to complete development, as well as the degree-days required for overall egg-to-adult development. The study was conducted under three constant temperatures (20, 25, and 30 °C at the Department of Zoology, Faculty of Science, South Vally University, Qena Governorate, Egypt. The aim of this study was to determine the development rate of S. frugiperda at different temperatures and to calculate the number of degree-days (DD’s) required for each stage to complete its development. The study showed that the mean incubation period was6.9, 3.4, and 2.1 days at 20, 25, and 30 °C, respectively, and the larval duration were 38.5, 23.7, and 18.6 days at the same temperatures, respectively. On the other hand, The average pupal durations were 22.5 at 20, 9.4 at 25, and 7.7days at 30°C. For the adult stage the mean time required for maturation of the ovaries and starting to egg-laying, decreased as the temperature increased, from 4.8 days at 20°C to 2.1 days at 30°C. Meanwhile, the mean duration of generation for S. frugiperda was 72.7, 40.1, and 30.5 days at 20, 25, and 30°C, respectively. The lower threshold of development (t0) and average thermal units in degree-d (dd’s) were 15.79 °C and 30.0 dd’s for egg stage; 10.39 °C and 360.2 dd’s for the larval stage; 14.05 °C and 129.8 dd’s for the pupal stage; 12.95 °C and 37.73 dd’s for pre- oviposition period and 12.49°C and 527.3 dd’s for a complete generation. The study of heat requirementsof the fall armyworm as a new invasive pest came to Egypt from the South Africa countries is very important to determine the thermal heat units for the development and growth of this pest in order to predict the annual field generations in other supplementary studies and draw up a planning IPM strategy for this dangerous pest during the absence of any local information about it.
https://eajbsa.journals.ekb.eg/article_120603_8a7e836c052355eb9c91424a0ce83380.pdf
2020-12-01
73
85
10.21608/eajbsa.2020.120603
Spodoptera frugiperda
Fall armyworm
FAW
biology
Biologic
heat units
heat requirements
Hassan
Dahi
hassandahi@yahoo.com
1
Plant Protection Research Institute, Agricult. Research Center, Dokki, Giza, Egypt
AUTHOR
Sherehan
Salem
2
Zoology Department, Fac. of Science, South Vally University, Qena, Egypt
AUTHOR
Walaa
Gamil
walaagamil@yahoo.com
3
Cotton Leafworm Research Department – Plant Protection Research Institute, ARC, Dokki, Giza, Egypt
AUTHOR
Hend
Mohamed
4
Biological Control Research Department – Plant Protection Research Institute, ARC, Giza, Egypt, Assiut Insect Laboratory
AUTHOR
ORIGINAL_ARTICLE
Study of the Efficacy of Oxalic Acid and Thymovar (Thymol) against the Parasitic Mite of the Honey Bee, Varroa destrutor
Varroasis is a dangerous pathogen of the honey bee caused by the mite Varroa destructor, the aim of this work is to assess the effectiveness of two natural products (oxalic acid and thymol) in the fight against varroasis. The experiment covered 40 colonies in the central region of Algeria. Two doses of oxalic acid were used: 30 and 45 grams per liter of sugar syrup. For thymol (Thymovar), two treatments were carried out: ½ strip with one and two applications for each group of colonies. The 1/2 strip formulation in two applications at an interval of two weeks apart seems the most effective; the 45 gm solution of oxalic acid has a higher efficacy compared to that of 30 gm, that the effectiveness of oxalic acid is directly linked to the presence of brood at the time of the intervention. these two treatments are of control measure to be integrated by beekeepers as part of an alternative control strategy.
https://eajbsa.journals.ekb.eg/article_120604_bbb0b4a7106c8c96cfc86cc2606f7f17.pdf
2020-12-01
87
94
10.21608/eajbsa.2020.120604
Honey bee
natural products
Efficiency
varroa
Algeria
Noureddine
Adjlane
adjlanenoureddine@hotmail.com
1
Department of Agronomy, Faculty of Science, M’hamed Bougara University, Algeria
AUTHOR
Redha,
Smaoui
2
National institute specializing in vocational training (INSFP) of Bougara
AUTHOR
Nizar,
Haddad
3
National Agricultural Research Center. P.O.Box 639-Baqa' 19381. Jordan
AUTHOR
ORIGINAL_ARTICLE
A new Vision for Improving the Biological Properties of The Mulberry Silkworm, Bombyx Mori Using the Powder of Three Different Types of Ground Snails and Plant Extracts
These experiments were carried out as an attempt to develop methods used in raising mulberry silkworms. 2 and 3% of three different types of plant extracts Nigella sativa, Allium sativum, and Moringa oleifera, as well as 50 and 100 grams of three different types of ground snail's powder Eobania vermiculata, Helicella vestalis, and Monacha cardusiana were added to the mulberry silkworm Bombyx mori diet and tested for their influence on some of its biological characteristics. The results showed the following, 3% N. sativa in the worm's diet had the best effectiveness on all the tested traits. Also, 100 grams of different snail's powder showed an effective effect on all the tested biological characteristics of B. mori. When 3% of N. sativa was mixed with 100 g powder of the three different snails into food, this led to excellent results in measurements of all tested traits, especially in the case of the terrestrial snail E. vermiculata. An analysis was made of the most important nutrients that are found in the bodies of the tested ground snails, and the results showed that their bodies contain high levels of proteins, carbohydrates, and sugars as well as some important minerals Especially E. vermiculata and H. vestalis.
https://eajbsa.journals.ekb.eg/article_120979_7d6109969258e607aa26397d1b82abed.pdf
2020-12-01
95
105
10.21608/eajbsa.2020.120979
Bombyx mori
Plant extracts
Land snails
biological traits
and chemical analysis
Mohammed,
R.
ghada.mohamed@fagr.bu.edu.eg
1
Plant Protection Department, Faculty of Agriculture, Benha University, Egypt
AUTHOR
El-Shewy,
M.
2
Plant Protection Department, Faculty of Agriculture, Benha University, Egypt
AUTHOR
ORIGINAL_ARTICLE
Estimation of Regional Effect, Evaluation Index and Subordinate Function of Mulberry Silkworm in Some Egyptian Governorates
Two local and important hybrids of silkworm, Bombyx mori L. were reared in three Egyptian governorates of Qalubyia, Giza and Sohag (Q, G and S). Fourteen parameters of 5th instar duration (FD), whole larvae duration (LD), mortality percentage (MP), number of cocoon/liter (C /L), cocooning percentage (CP), duple cocooning percentage (DCP), cocoon crop by number (Crop/N), cocoon crop by weight (Crop/W) were recorded. Cocoon weight (CW), cocoon shell weight (CSW), pupae weight (PW), cocoon shell ratio (CSR), silk productivity (SP) for females and males were investigated. The results revealed that rearing silkworm was better in Qalubyia and Giza comparing with Sohag governorate. Some modifications for adjusting the rearing techniques, temperature and humidity to raise the silk production were recommended. As well as selections the hybrids suitable for Upper Egypt conditions. Performances of hybrids characters are changed according to the environment changed. The average of CW, CSW, PW, CSR and SP traits were better for both sexes in Qalubyia governorate. Hybrid of hy1 was the best for CW, CSW, PW, CSR and SP traits for both sexes. Both of hy1 and hy2 were mostly the best hybrids in Qalubyia, Giza and Sohag of females and males. Evaluation index and subordinate function values depended on the hybrids which represented the genetic factor and the locations that represented the environmental factor and its interactions.
https://eajbsa.journals.ekb.eg/article_120980_f6b8f5a13e1f431f8ad7470ec60059fb.pdf
2020-12-01
107
121
10.21608/eajbsa.2020.120980
locations
regional effects
Evaluation index
Subordinate function
Mulberry silkworm
Tahia
Fouad
tahiafouad1@gmail.com
1
Sericulture Research Department, Plant Protection Research Institute, Agric. Res. Center, Giza, Egypt
AUTHOR
ORIGINAL_ARTICLE
Toxicity of Alone and Combine Application of Botanical Extracts against 2nd Instar Larvae of Liriomyza trifolli on Tomato, Lycopersicum esculentum
Tomato is an important vegetable crop and cultivated all over the world. The production of tomato is reducing due to the attack of various insect pests such as Liriomyza trifolii. L. trifolii is a very destructive pest and can cause severe economic losses of tomato, Lycopersicon esculentum. Botanicals, Azadirachta indica, and Euclyptus camaldulensis were checked during 2017 under laboratory conditions to check them alone and combine toxicity against second instar larvae of tomato Liriomyza trifolii. Significant differences (P<0.001) were recorded. Highly significant mortality 11.40±0.533c was recorded by the combine treatment of A. indica + E. camaldulensis at 10% concentration followed by A. indica 7.90±1.302ac at 10% concentration. The study concluded both plant extracts (Azadirachta indica and Euclyptus camaldulensis) could be used as effective management strategy to control insect pests especially Liriomyza trifolii in laboratory as well as field conditions.
https://eajbsa.journals.ekb.eg/article_121373_29fbc21b08625a19db817f70d7bb04b6.pdf
2020-12-01
123
128
10.21608/eajbsa.2020.121373
Liriomyza trifolii
Lycopersicon esculentum
Azadirachta indica
Euclyptus camaldulensis
Karachi
Pakistan
Azhar
Mujahid
azharbravi@gmail.com
1
Department of Agriculture and Agribusiness Management, University of Karachi, Karachi, Pakistan
AUTHOR
Hamza
Khan
hamzakhan01@gmail.com
2
Department of Agriculture and Agribusiness Management, University of Karachi, Karachi, Pakistan
AUTHOR
Sanveed
Sarwar
3
Department of Entomology, University of Agriculture, Faisalabad
AUTHOR
Junaid
Mustafa
junaidbizenjo0345@gmail.com
4
Department of Agriculture and Agribusiness Management, University of Karachi, Karachi, Pakistan
AUTHOR
Hamzaa
Khan
5
Department of Agriculture and Agribusiness Management, University of Karachi, Karachi, Pakistan
AUTHOR
Sohail
Qadir
6
Department of Entomology, University of Agriculture, Faisalabad
AUTHOR
Zulnorain
Sajid
zulnorainsajid18@gmail.com
7
Department of Entomology, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
AUTHOR
ORIGINAL_ARTICLE
Survey of The Main Pests Infesting Squash Plants and Its Relation with The Planting Dates at Assiut Governorate
Field experiments were conducted in Assiut Governorate during two successive seasons 2018 and 2019; to survey the phytophagous pests inhabiting squash plants, in addition, to study the relationship between the main pests namely; melon aphid, Aphis gossypii (Glover); whitefly, Bemisia tabaci (Genn.); two-spotted spider mite, Tetranychus urticae Koch; Onion thrips, Trhips tabaci (Lind.) and green leafhopper, Empoasca decipiens (Paoli) and its infestation of the winter, summer and nili squash plantations during 2018 and 2019 growing seasons. The results revealed clearly twenty species of phytophagous pests belonging to twelve families and seven orders inhibiting winter, summer, and nili squash plantations were encountered by using the plant samples method. Data also, revealed that the summer squash plantation received a higher average number with the aforementioned main pests, followed by nili and winter squash plantations; also, the whitefly, B. tabaci ranked first in the highest average number of individuals followed by a two-spotted spider mite, T. urticae; green leafhopper, E. decipiens; melon aphid, A. gossypii, and onion thrips, T. tabaci infestation to winter, summer and nili squash plantations during 2018 and 2019 growing seasons. It can be concluded that severe injury of the main pests; A. gossypii, B. tabaci, T. urticae, T. tabaci and E. decipiens to the squash plants can be avoided by using the winter plantation date followed by nili and summer plantation dates.
https://eajbsa.journals.ekb.eg/article_122634_31639762e3cd8c53c26e12f0268892bc.pdf
2020-12-01
129
140
10.21608/eajbsa.2020.122634
piercing sucking pests
Survey
population fluctuation
planting dates
squash
Abou El-Saad,
K.
1
Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt
AUTHOR
M.
Embarak
magedzahe@yahoo.com
2
Plant Protection Res. Institute, Agricultural Research Center, Giza, Egypt
AUTHOR
A.
Salem
3
Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt
AUTHOR
ORIGINAL_ARTICLE
Evaluation of the Effectiveness of Some Synthetic Insecticides Against Cotton Bollworm, Helicoverpa armigera Hübner (Lepidoptera: Noctuidae)
Cotton bollworm, Helicoverpa armigera Hübner (Lepidoptera: Noctuidae), is one of the most important and key pests of cotton in Iran. This study was carried out with the aim of investigating the efficacy of several different insecticides on cotton bollworm in three regions of Golestan province, Iran, in a completely randomized design with 4 replications and 7 treatments. Experimental treatments include: Proclame-Fit® 150 g/ha, Profenofos® 2.5 lit/ha, Cypermethrin® 150 ml/ha, Indoxacarb® 250 ml/ha, Karvin® 1.5 lit/ha, Fenpropathrin® 1 lit/ha and control (water without insecticide). Samplings unite of cotton bollworm larvae was 10 cotton plants per plot which were recorded the number of immature pests per plant at the before spraying, 3, 7, and 14 days after spraying. The larval mortality of treatments was modified by the Henderson-Tilton formula to determine the efficiency percentage. According to the results obtained in Bandar-e Gaz, Proclame-Fit® and Karvin® had the highest long-term effect 50.85% and 59.86%, respectively, and Profenofos® had a suitable short-term effect with 74.82% mortality percentage. In Gonbad-e Kavous, Proclame-Fit®, Profenofos® and Karvin® with 96%, 94.33 % and 80% have shown a suitable lethal-short-term effect on cotton bollworm larvae. In Ramian, Proclame-Fit®, Profenofos ® and Karvin ® showed the highest short-term effect on cotton bollworm larvae, 83.18 %, 88.97 % and 88.37%, respectively. Based on the results, to control cotton bollworm, Proclame-Fit ® and Profenofos® are recommended as appropriate insecticides with the recommended doses.
https://eajbsa.journals.ekb.eg/article_122635_d6b13e0ae83d4f55a367ccedfd837ed0.pdf
2020-12-01
141
146
10.21608/eajbsa.2020.122635
Cotton
chemical control
Helicoverpa armigera
Mohammad
Razinataj
1
Cotton Research Institute of Iran, Agricultural Research, Education and Extension Organization (AREEO), Gorgan, Iran
AUTHOR
mahmoud
Jokar
m.jokar@areeo.ac.ir
2
Cotton Research Institute of Iran, Agricultural Research, Education and Extension Organization (AREEO), Gorgan, Iran
AUTHOR
Taghi
Mojeni
3
Cotton Research Institute of Iran, Agricultural Research, Education and Extension Organization (AREEO), Gorgan, Iran
AUTHOR
Parisa
Heravi
4
Cotton Research Institute of Iran, Agricultural Research, Education and Extension Organization (AREEO), Gorgan, Iran
AUTHOR
Kianoosh
Haghnama
5
Agricultural Jahad Organization of Golestan Province
AUTHOR
Payam
Abravan
6
Agricultural Jahad Organization of Golestan Province
AUTHOR
ORIGINAL_ARTICLE
Comparison Between Some Mulberry Varieties on Silkworm, Bombyxmori L Economic Traits
Five mulberry varieties were used for tests. These varieties were Morus alba Linn. Var. Kaeryang- Bpong (K1), Morus alba Linn. Var. Kokuso-27 (K2), Morus alba Linn. Var. Canava-2 (K3), Morus alba Linn. Var. Suisfen (K4) and Morus alba Linn. Var. Ardnyl (K5). The agronomical parameters recorded, were shoot length, number shoots/tree, number leaves/ shoot, leaf /shoot ratio, weight of 100 leaf, number leaves/100g, leaf yield/tree, leaf yield/fadden and leaf moisture percentage. Young instars duration, fourth instar duration, fifth instar duration, total larval duration, pupation ratio, cocooning percentage, number of cocoons/liters, cocoon weight, cocoon shell weight, pupal weight and cocoon shell ratio, silk productivity, length and weight of silk filament, size of reeled thread (denier) and silk ratio (silk recovery) were registered. Biochemical analysis was done to estimate the total chlorophyll, chlorophyll A and B & ratio of chlorophyll A/B and carotenoids.
https://eajbsa.journals.ekb.eg/article_124328_a872dfb01c53e2445d40381dc28edf2d.pdf
2020-12-01
147
155
10.21608/eajbsa.2020.124328
mulberry varieties
Silkworm
Agronomical parameters
economic traits
Biochemical analysis
Ghada.
Ahmed
ghadahamadarc@gmail.com
1
Sericulture Research Department, Plant Protection Research Institute, Agric. Res. Center, Giza, Egypt
AUTHOR
ORIGINAL_ARTICLE
Usage of RAPD-PCR Analysis of DNA to Differentiate Lady Bird Beetles Among Family Coccinelidae
Random amplified polymorphic DNA (RAPD) analysis, analysed by polymerase chain reaction (RAPD-PCR), as a tool to differentiate between six coccinellid beetles (Coccinella undecimpunctata L. 1758; C. Novemnotata Herbst 1793; Hippodamia tredecimpunctata L. 1758; Cheilomenes propinqua vicina (Mulsant, 1850); Scymnus (Pullus) subvillosus (Goeze, 1777) and Cydonia vicina nilotica Mulsant 1850) evaluate the variation and the genetic structure of the different species with three decamer oligonucleotide primers (MWG1, MWG2, and MWG3). MWG1 primer was successfully used to evaluate the similarity and compare genetic variation among the six insects, the total number of amplicons ranged from 10 to 16 per primer with an average of 14 amplicons. Amplicons size (bp) were ranged from 100 bp to 1311 bp. Polymorphic amplicons were ranged from 9 to 16. The maximum of polymorphic bands belonged to MWG2 primer 16 bands with 100% polymorphism, and the minimum of polymorphic bands belonged to MWG3 primer (9bands) with 90% polymorphism. In addition, MWG1 primer was produced (14 bands) with 100% polymorphism. The RAPD analysis data grouped into two main clusters and an independent one, the first cluster was C. vicina nilotica, and C. novemnotata classified as the most related species with 72%, and they close to H. tradecimpunctata with 55%. The second cluster was C. undecimpunctata, and S. subvillosus were closed with 58% while, C. vicina is relatively distant from the other five species, and meet with them at common ancestor with 45% using RAPD-PCR analysis and the results were cleared genetic variations between the six coccinellid spp < em>. The polymorphic percentage ranged between 90% and 100%, and the similarity percentage ranged between 0.32 and 0.71.
https://eajbsa.journals.ekb.eg/article_125862_1dbf573842e5244760ba506edd3ccc8c.pdf
2020-12-01
157
164
10.21608/eajbsa.2020.125862
RAPD-PCR
DNA
Lady Bird Beetles
Coccinelidae
Iman
Elmahdi
1
Biological Control Res. Depart., Plant Protection Res. Institute., Agricult. Res. Center
AUTHOR
Hazem
Abul Fadl
2
Biological Control Res. Depart., Plant Protection Res. Institute., Agricult. Res. Center
AUTHOR
Mona
Shoeb
monaashoeb@hotmail.com
3
Biological Control Res. Depart., Plant Protection Res. Institute., Agricult. Res. Center.
AUTHOR
ORIGINAL_ARTICLE
Influence of Temperatures on Storage of Formulated Entomopathogenic Nematodes
Due to entomopathogenic nematodes EPNs represent excellent biological control agents for soil stages of several insect pests. This work aimed to study the influence of the different temperatures on the survival and vitality of EPN IJs after a long-term duration, and evaluate the suitability of EPNs, for formulation and storage on Hydrogel was used as a carrier medium. The new method was used for storage of IJs that was pieced in a square shape of Baby diapers which containing of Hydrogel (SAP), and fine cotton fibers to offer the moisture for IJs. Four EPNs were investigated, three of them were foreign, Steinernema carpocapsae (S.c.), Steinernema glaseri (S. g.), Heterorhabditis bacteriophora (H.b.), and one indigenous, Heterorhabditis indica (RM1). The tested EPNs divided into two main groups, the first group was stored at room temperature for 4 months, and the second was stored in the refrigerator for a long-term period extended up to 12 months. The survival and pathogenicity of the formulated EPNs were discussed. Results of the EPNs, which were stored at room temperature (group 1), showed that survival % of (RM1) and (S. g.) IJs were more than the others two (S. c.) and (H. b.). Also, (RM1) and (S. g.) achieved high pathogenicity % of the tested wax moth larvae, Galleria mellonella, morethan (S. c.) and (H. b.). The data showed excellent success in case of storage of EPNs IJs at low temperature (group 2), where all EPNs remained survive with percentage 100% for 5 months, while the survival of (S. g.) was 100% after 10 months, followed by (RM1) with survival 100% after 8 months, and (S. c.) as a long-term for 7 months. All EPNs species showed high vitality and infected the G. mellonella larvae with pathogenicity % reached to 85 %, 78%, 76%, and 72% by (S. g.), (S. g.), (S. c.), and (H. b.), respectively as storage long-term period expanded to 12 months.
https://eajbsa.journals.ekb.eg/article_125863_9af284a3fbf42b4b29549edfb6a3f64d.pdf
2020-12-01
165
174
10.21608/eajbsa.2020.125863
Entomopathogenic nematodes
biological control
temperatures
Iman
Elmahdi
iman.almahdi.ia@gmail.com
1
Biological Control Res. Depart., Plant Protection Res. Institute, Agricultu.Res.Center. Giza -Egypt
AUTHOR
ORIGINAL_ARTICLE
Activity of Otostegia fruticosa (Lamiaceae) Leaves Extracts Against Lymphatic Filariasis Vector, Culex pipiens L. (Diptera: Culicidae)
The present study was carried out to evaluate the activity of methanol, ethyl acetate, chlorobenzene, and hexane extract from leaves of Otostegia fruticosaas larvicidal and repellent agents against Culex pipiens. The effect of tested extracts on the female reproductive potential treated as larvae was also investigated. The obtained results showed that hexane extract have potent larvicidal activitywithLC50 and LC90 values equal to (126.27 and 236.84 ppm), respectively followed by chlorobenzene (242.14 and 501.17 ppm), ethyl acetate (578.07 and 856.29 ppm) and methanol (653.00 and 1127.10 ppm). All tested extracts of O. fruticosa induced significant (P<0.01) reduction in fecundity and increased the infertility percentages of C. pipiens females developed from treated larvae as compared with control and these effects were solvent- and concentration-dependent. In addition, the repellency effect of tested extracts was found to be varied among tested extracts. Four hours post-treatment, the dose of 3.33 mg/cm2 recorded repellency percentages of 64.13 and 75.09 by methanol and ethyl acetate extracts, respectively. Meanwhile, chlorobenzene extract induced repellency percentages of 80.15, 75.94, and 65.84 for the doses of 3.33, 1.67 and 0.83 mg/cm2, respectively. Moreover, repellent activity of hexane extract at doses of 3.33, 1.67 and 0.83 mg/cm2 recorded 88.08, 79.01 and 75.50%, respectively.
https://eajbsa.journals.ekb.eg/article_126835_4001a9beb676a6e92376e13e1cf30cef.pdf
2020-12-01
175
186
10.21608/eajbsa.2020.126835
larvicidal activity
repellency
fecundity
Culex pipiens
Otostegia fruticosa
Mohamed
Shahat
mohamedadly51@azhar.edu.eg
1
Department of Zoology and Entomology, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11651, Egypt.
AUTHOR
Tarek
El-Sheikh
tarek_elshekh2000@yahoo.com
2
Department of Zoology and Entomology, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11651, Egypt.
AUTHOR
Kotb
Hammad
3
Department of Zoology and Entomology, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11651, Egypt.
AUTHOR
Ahmed
Hasaballah
ahscience09@azhar.edu.eg
4
Department of Zoology and Entomology, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11651, Egypt.
AUTHOR
Ahmed
Shehata
5
Department of Zoology and Entomology, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11651, Egypt.
AUTHOR
ORIGINAL_ARTICLE
Repellency of Ten Edible and Essential Native Plant Oils to The Granary Weevil, Sitophilus granarius L. (Coleoptera: Curculionidae)
The comparative repellency of ten selected native essential and edible oils was assessed against adults of S. granarius. The oils used are black seed oil (Nigella sativa), Sesame oil (Sesamum indicum), olive oil (Olea europaea), Peppermint oil (Mentha piperita), Basil oil (Ocimum basilicum), orange oil (Citrus sinensis), Rosemary oil (Rosmarinus officinalis), Clove oil (Dianthus caryophyllus), Garlic oil (Allium sativum), and Cinnamon oil (Cinnamomum zeylanicum). The repellent activity of different concentrations of each oil was investigated using the area preference method. All essential oils used showed much higher repellent activity to this insect than edible oils. The used oils can be arranged in descending order according to their average mean repellent activity as follows: Cinnamon (96.19%), Garlic (91.27%), Clove (90.43%), Basil (87.04%), Peppermint (79.31%), Rosemary (74.49%), Orange peel (53.54%), Sesame (13.08%), Black seed (11.18%), whereas, Olive oil which was attractive to the insects (- 4.49%). In spite of Orange peel oil, no direct logarithmic correlation was found between the repellent activity of oils and doses used. Also, results showed that the repellent activity of oils fluctuated between decrease and increase as the time of exposure increased. The possibility of using oils as repellents for stored product pests was discussed.
https://eajbsa.journals.ekb.eg/article_126838_1a687d99d5e3238ec746b06e35d20f08.pdf
2020-12-01
187
197
10.21608/eajbsa.2020.126838
Sitophilus granarius
plant oils
grains protection
Stored products
insect repellents
Nasra
Zohry
1
Department of Zoology, Faculty of Science, Sohag University,Sohag, Egypt
AUTHOR
Salwa
Ali
2
Department of Zoology, Faculty of Science, Sohag University,Sohag, Egypt
AUTHOR
Abdelwahab
Ibrahim
abdelwahab.ibrahim@fsc.bu.edu.eg
3
Entomology Department, Faculty of Science, Benha University, Cairo, Egypt.
AUTHOR
ORIGINAL_ARTICLE
Toxicity and Deleterious Impacts of the Deathstalker Scorpion, Leiurus quinquestriatus, Venom on Development of the Greater Wax Moth, Galleria mellonella (Lepidoptera: Pyralidae)
The greater wax moth, Galleria mellonella L. (Lepidoptera: Pyralidae) is the most destructive pest of the honey bee, Apis mellifera, throughout the world. The current study was carried out to evaluate the toxicity and disruptive effects ofthe venom of deathstalker scorpion, Leiurus quinquestriatus (Buthidae: Scorpiones) on the growth, development, and metamorphosis of this pest. The newly moulted 3rd instar larvae were fed on an artificial diet treated with a series of venom concentrations (250, 500, 1000, 2000, 4000, and 8000 ppm). The present results could be summarized as follows. The venom exhibited considerable toxicity against larvae. Also, the pupae suffered a lethal action of the venom, in a dose-dependent course. In contrast, adult survival was not affected by the tested venom. The LC50 was calculated in 3428.9 ppm. With regard to growth and development, the somatic weight gain of larvae was slightly reduced proportionally to the concentration. The larval growth rate increasingly regressed by the ascending concentration. The larval duration was remarkably shortened, in a dose-dependent manner. The pupation rate of treated larvae was significantly regressed, in a dose-dependent course. Also, the pupal duration was shortened. Pupae lost more body water than control pupae. The venom failed to affect the metamorphosis program.
https://eajbsa.journals.ekb.eg/article_127383_51b7d4514328952c952e45bb7ed9f34c.pdf
2020-12-01
199
211
10.21608/eajbsa.2020.127383
Adult
Desiccation
larva
metamorphosis
morphogenesis
mortality
pupation
Survival
Karem
Ghoneim
karemghoneim@gmail.com
1
Department of Zoology and Entomology, Faculty of Science, Al-Azhar University, Cairo, Egypt.
AUTHOR
Hamadah,
Kh.
2
Department of Zoology and Entomology, Faculty of Science, Al-Azhar University, Cairo, Egypt
AUTHOR
Tanani,
M.
3
Department of Zoology and Entomology, Faculty of Science, Al-Azhar University, Cairo, Egypt
AUTHOR
Emam,
D.
4
Department of Zoology and Entomology, Faculty of Science, Al-Azhar University, Cairo, Egypt
AUTHOR
ORIGINAL_ARTICLE
Anticipated Factors Affecting Extraction of Venom from Honey Bees colonies by Electrical Impulses.
Some factors affecting bee venom extraction by electrical impulses directly from honey bee colonies were studied. Two experiments were conducted during the summer months to study the effect of defensive response degree, colony strength level, and season time of collection. Twenty-four carniolan hybrid honey bee colonies were used. The results revealed that defensive response was depended on the colony strength and season time of collection. When the number of stings par colony was determined, the stings number was related to the number of frames covered with bees. Bee venom amount which weakly extracted significantly differed during summer months (July and August). From the results of the variability of extracted venom amounts, the main peak of production was recorded during July month. Negative correlation coefficients were recorded between defensive response and collected bee venom from three strength levels from honey bee colonies
https://eajbsa.journals.ekb.eg/article_131013_9609b74af7a22eb028e731e67cae46c4.pdf
2020-12-03
213
220
10.21608/eajbsa.2020.131013
Dry venom
Electrical Impulses
Apis mellifera
Honey bee
bee aggressiveness
Eslam
Omar
eslamomar@aun.edu.eg
1
Plant Protection Dept., Fac. of Agric., Assiut Univ., Egypt
AUTHOR
ORIGINAL_ARTICLE
Effect of Temperature and Host Density on Some Characteristics of The Ectoparasitoid Bracon brevecornis (Walker) (Hymenoptera: Braconidae)
The present work was carried out to study the effect of exposure to different temperatures of 15, 20,25,30 and 35˚C and different host densities of 2, 4, 6, 8 and 10 larvae of the host on some biological aspect of Bracon brevicornis (Walker) (Hymenoptera: Braconidae)adult femaleswhen reared on Ephestia kuehniella full-grown larvae. Results indicated that exposure to different temperatures had a significant effect on pre-oviposition, oviposition, post-oviposition and longevity periods of an adult female, As the shortening of these periods was observed with a high temperature and vice versa. Also, a significant effect of temperatures on parasitism % and eggs laid / female were found. The obtained results showed an insignificant effect of host densities on biological aspects of an adult female of B. brevicornis, except in the case of Parasitism % and eggs laid /female.
https://eajbsa.journals.ekb.eg/article_131144_e6342d6dc77b1c00faed062c0d13227d.pdf
2020-12-07
221
230
10.21608/eajbsa.2020.131144
Bracon brevicornis
adult biology
Temperature
host density
Abdelaal,
A.
1
Economic Entomology & Agricultural Zoology Dept., Faculty of Agriculture, Menoufia University, Menoufia, Egypt
AUTHOR
Said,
M.
smsaeed27@yahoo.com
2
Economic Entomology and Agriculture Zoology Department, Faculty of Agriculture, Menoufia University
AUTHOR
ORIGINAL_ARTICLE
Effect of Rearing Queen Bees, Apis mellifera L. Raised from Grafted Larvae Under Magnetic Field Conditions on Its Characteristics
This work was carried out at Economic Entomology &Agricultural Zoology Department Faculty of Agriculture, Menoufia University. In order to study the impact of honey bee queens raised from grafted larvae exposed to the magnetic field and the unexposed in some characteristics. Carniolan honey bee hybrid was prepared to be reared from and others to represent the queens. The obtained results in the two seasons indicated that the effect of exposure of grafted queen cups to different times of magnetic field on the acceptance percentages of grafted larvae in beeswax cell cups and differed significantly and ranged from 72.22 to 82.33% for the first year 2017 and from 70, 82.33 % for the second year 2018. The acceptance in 3 days exposure times was significantly higher (82.33%) than the one-day exposure time compared with control. Finally, it could be concluded from the obtained results that exposing grafted queen cell in mass rearing production in honey bee colonies may affect the morphometric characters differed from one day to three days compared with non-exposed colonies, therefore, it could be recommended that beekeeper must be trained to expose his rearing queens in the breeding time to the magnetic field to increase the ability of queens and workers to avoid the bad effects of these radiations
https://eajbsa.journals.ekb.eg/article_131159_bda1f5acc478b221977995dc5ae34aed.pdf
2020-12-01
231
238
10.21608/eajbsa.2020.131159
Honey bee
Queen rearing
magnetic field
characteristics
Abdelaal,
A.
aaakaway@gmail.com
1
Economic Entomology & Agricultural Zoology Dept., Faculty of Agriculture, Menoufia University, Menoufia, Egypt.
AUTHOR
ORIGINAL_ARTICLE
Pollen Spectrum and Foraging Plants for the Red Dwarf Bee in Jordan
Pollen spectrum of honey, and pollen content of the honey sac of the red dwarf honeybee (Apis florea F.), which was discovered recently in Jordan, were studied. Pollen diversity and pollen density in these samples, which were collected from two sites in Jordan, were investigated. A total of 4399 pollen grains were counted and classified in the honey of A. florea. 2667 pollen grains, or 60.63% of total pollen, were obtained from Centaurea hylolepis Bioss., which is considered to be the Dominant Pollen (DP), and the studied honey was monofloral. About 1541 pollen grains, or 35.03% of the total, were collected from Family Caryophyllacea and considered to be a Secondary Pollen (SP) source. Cardania draba (L.) was considered a Minor Pollen (MP) source with 2.07% abundance, followed by Ecualyptus sp. (0.68%); Acacia cyanophylla Lindl. (0.59%); Leopoldia desirticola (Rech.f.) Feinbrun (0.48%); Salvia lonigera Poir. (0.39%); and Sambucus racemosa L. (0.14%). The plant diversity or number of plant species foraged by small bees was eight. While the plant diversity in honey sac content of the small bee from another site, El-Akaba, was nine. Centaurea sp., Echinops sp. and Erodium sp. were considered as Secondary Pollen (SP) sources, with percent abundances of 33.99, 23.60% and 16.23%, respectively. The following Important Minor Pollen sources (IMP) and their (abundance %) and classification were as follows: Asphodelus sp. (6.96%); Phoenix sp. (5.94%); and Rubus sp. (5.66%). Minor Pollen (MP) sources were: Diplotaxis sp. (1.6%); Ecobllium sp. (1.16%) and Sencio sp. (0.16%).
https://eajbsa.journals.ekb.eg/article_131684_2db3510ea43913633275de44f5d32983.pdf
2020-12-13
239
245
10.21608/eajbsa.2020.131684
pollination
Apis florea
Bee
Honey
Jordon
Salah
Rateb
salah.hashem@agr.au.edu.eg
1
Plant Protection Department, Fac. of Agric., Assiut Univ., EGYPT
AUTHOR
N.
Haddad
2
Head of Beekeeping Dept., Res. and Administration, Nat. Centre, Ministry of Agric., Jordan.
AUTHOR
M.
Hussein
3
Plant Protection Department, Fac. of Agric., Assiut Univ., EGYPT
AUTHOR
ORIGINAL_ARTICLE
Susceptibility of Certain Egyptian Wheat Cultivars to Greenbug, Schizaphis graminum (Rondani) (Homoptera: Aphididae) Infestation
The greenbug (Schizaphis graminum) (Homoptera: Aphididae) is a major aphid species attacking cereal crops and responsible for viral disease transmission of the plant. Host plant resistance is a strong pillar in Integrated Pest Management (IPM) for reducing the damage of this pest. This study was carried out at Plant Protection Department, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt during 2019-2020 to study the susceptibility of five Egyptian wheat cultivars (Beni Suef 5, Gimmiza 11, Giza 168, Misr 1 and Sids 12) to greenbug infestation. The results indicated that in the host preference (free choose) experiment, Sids 12 cultivar was resistant (R) against aphid, while Giza 168 and Misr 1 were moderately resistant (MR) cultivars, on contrast Beni Suef 5 and Gimmiza 11 were susceptible (S) for aphid infestation. The nymphs fed on Beni Suef 5 cultivar had significantly shorter developmental time (7.6 days), highest survival (96.1%) and shorter adult longevity (9.7 days) with average offspring 45.8 aphids/ female, than other four wheat cultivars, while nymphs reared on Sids 12 had significantly longest developmental time (9.2 days), lowest survival (86.3%) and longest adult longevity (12.2 days) with average offspring 31.4 aphids/female. Feedingof S. graminum on tested wheat cultivars leaves significantly reduces the growth parameters (shoot length, wet and dry weights) and photosynthetic pigments content. Results from this study are important for plant breeding programs that have the objective of producing aphid resistant cultivars.
https://eajbsa.journals.ekb.eg/article_132246_642254b52142f7e1d3f362baaa06bac0.pdf
2020-12-14
247
257
10.21608/eajbsa.2020.132246
Greenbug
Development
plant growth parameters
host plant resistance
Wheat
Megahed,
M.
megahed5@azhar.edu.eg
1
Plant Protection Department, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt
AUTHOR
Hamzah,
Kamel
2
Plant Protection Department, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt
AUTHOR
ORIGINAL_ARTICLE
Study the Effect of Treated Strawberry Seedlings by Triacontanol Hormone (TRIA) on the Infestation by Myzus persicae (Sulzer) under Glasshouse Conditions
This study was carried out to study the effect of treated strawberry plants, Fragaria ananassa (L.) by Triacontanol Hormone (TRIA) "three concentrations" on the infestation by Myzus persicae (Sulzer) under glasshouse conditions. Experiments were done in two locations (Governorates), Nobariya (Behera Governorate) and Perkash (Giza Governorate) during season 2019/2020. Three treatments (concentrations) of Triacontanol Hormone were done in both two locations, small concentration (35ppm), medium concentration (50ppm) and high concentration (65ppm), besides the fourth treatment which did not treat with any hormone (control). Strawberry plants were treated with small concentration of (TRIA) (35ppm) were lower infestation by M. persicae comparing to control. While strawberry plants which treated with medium concentration of (TRIA) (50ppm) had no clear effect on the infestation by M. persicae comparing to control. On the other hand, strawberry plants which treated with high concentration of (TRIA) (65ppm) were higher infestation by the same insect comparing to control.
https://eajbsa.journals.ekb.eg/article_132370_f55fb81b0895c1e8db50265184d0979a.pdf
2020-12-17
259
266
10.21608/eajbsa.2020.132370
Strawberry plants
Fragaria ananassa
Triacontanol hormone (TRIA)
Myzus persicae(Sulzer)
Emam
S
dr.ashrafsalah@yahoo.com
1
Plant Protection Research Institute, A.R.C., Dokki, Giza, 12618 Egypt
AUTHOR
Samia,
Abozeid
2
Plant Protection Research Institute, A.R.C., Dokki, Giza, Egypt
AUTHOR
Marwa,
Mousa
3
Plant Protection Research Institute, A.R.C., Dokki, Giza, Egypt
AUTHOR
Samira,
Abd-El Wahed
4
Plant Protection Research Institute, A.R.C., Dokki, Giza, Egypt
AUTHOR
ORIGINAL_ARTICLE
Efficacy of Partially Purified Soybean Protease Inhibitor on The Development of Cotton Leafworm, Spodoptera littoralis (Bosid.)
Plant protease inhibitors) PIs) are one of the plant strategies to maintain favorable growth and survival. Soybean trypsin inhibitor is the most well-known of the plant serine proteinase. The present study aims to detect the inhibitory activity of two concentrations of partially purified trypsin inhibitors from seeds of soybean(Glycine max). Comparing the results of feeding larvae on partially purified soybean inhibitors with control, revealed that the larval weight reduction caused by soybean PI was noticed after seven days of treatment. The highest larval weight reduction was obtained due to treatment with SPI at levels SPI 30% and SPI 60%, and there was no significant difference between the two levels. Feeding larvae on SPI 60% caused higher larval mortality about 20% than the control followed by SPI 30% which caused 16% larval mortality. The pupation in treated larvae was delayed two days by comparing to control. The highest weight reduction in pupal weight was 3.5± 0.3 gm at SPI 60% compared with control. Besides, the pupation rate decreased from 83% at SPI 60% to 80% at SPI 30%. Also, the reduction in adult emergency % was recorded at SPI level 30% by 41% and at SPI level 60% by 16% compared with the control. Results reveal that soybean protease inhibitors inhibit the growth and development of S. littoralis, and may be used in integrated pest control strategies.
https://eajbsa.journals.ekb.eg/article_139474_ae675eda3bf6ea406a603fcf44423921.pdf
2020-12-30
267
274
10.21608/eajbsa.2020.139474
Protease inhibitor
Spodoptera littoralis
Biological Activity
Kholoud,
Ibrahim
1
Department of Entomology, Faculty of Science, Ain Shams University, Egypt, Cairo 11566 Egypt
AUTHOR
Zahia,
Moustafa
2
Department of Entomology, Faculty of Science, Ain Shams University, Egypt, Cairo 11566 Egypt
AUTHOR
Sondos,
Mouhamed
3
Plant Protection Research Center, Giza, Egypt, Cairo
AUTHOR
Dalia
Mahmoud
dalia.mahmoud@sci.asu.edu.eg
4
Department of Entomology, Faculty of Science, Ain Shams University, Egypt, Cairo
AUTHOR
ORIGINAL_ARTICLE
Microbial Stress Resistance of Eristalis tenax Rat-Tailed Maggots
The maggots of the drone fly Eristalis tenax (Diptera) have survived in habitats with extreme microbial contamination. Despite this polluted environment, they avoid infection by microorganisms. We have investigated the first physical barrier, the cuticle surface of E. tenax maggots collected from Alakrasha dain, Egypt, using scanning electron microscopy which revealed an array of high density and dimensions of nano and microstructures that narrow to sharp points appear to make it difficult for bacteria to colonize its surface which interferes with the formation of biofilms and potentially acts as a defense against bacterial infection. This investigation leading us to more examine the antibacterial properties of the whole maggot extract naturally without any previous simulation, the results were promising against Staphylococcus aureus ATCC 6538, Staphylococcus mutans ATCC 25175, Escherichia coli ATCC 25922, Salmonella enterica Serotype Typhimurium ATCC 14028 bacteria compared to Nitrofurantoin antibiotic. Such antibacterial properties of both the maggot cuticle surface and the whole maggot extract have applications in many different fields, including antibacterial surfaces and biofilms besides the future isolating and developing of antimicrobial peptides from the maggot crude extract which could be a breakthrough against antibiotic resistance.
https://eajbsa.journals.ekb.eg/article_167022_0f094774d9d673bbc97fbfe80ec79386.pdf
2020-12-30
275
282
10.21608/eajbsa.2020.167022
Eristalis tenax
Antibacterial activity
maggot crude extract
cuticle surface
Omnia
Abass
1
Department of Entomology, Faculty of Science, Ain Shams University, Cairo, Egypt
AUTHOR
Asmaa
Haggag
haggag.a.a.1@gmail.com
2
Department of Entomology, Faculty of Science, Cairo University, Giza, Egypt
AUTHOR
Rawda
Badawy
3
Department of Entomology, Faculty of Science, Ain Shams University, Cairo, Egypt
AUTHOR
Eman
Essa
eman.essa@sci.asu.edu.eg
4
Department of Entomology, Faculty of Science, Ain Shams University, Cairo, Egypt
AUTHOR