Life History of the Predaceous Mite Cunaxa capreolus (Berlese) (Acari: Prostigmata: Cunaxidae) When Fed on Different Diets at Different Temperatures
Mostafa
M.
Plant Protection Research Institute, A.R.C. Dokki, Giza, Egypt
author
Amina
Abdel-Rahman
Entomology Dept., Fac. Sci., Cairo Univ., Giza, Egypt
author
A.
Younis
Entomology Dept., Fac. Sci., Cairo Univ., Giza, Egypt
author
E.
Yassin
Plant Protection Research Institute, A.R.C. Dokki, Giza, Egypt
author
Rania
Saber
Plant Protection Research Institute, A.R.C. Dokki, Giza, Egypt
author
text
article
2016
eng
This work aimed to study different biological aspects of the predatory mite, Cunaxa capreolus (Berlese) when fed on different diets mainly free living nematode, Rhabditis scanica Allgenand Entomobrya musatica Stach (Collembola) at 25 and 35+2 °C and relative humidity 75+5% R.H. in laboratory. From the study, it was obvious that the different biological aspects (incubation period, life cycle, longevity and life span) of the predator were significantly affected by feeding on the different diets. When the two preys were compared as food, Collembola showed a higher fecundity source than using of free living nematodes as rearing food, where the number of deposited eggs of the predator was 39.11 eggs at 25 ºC, but the free living nematodes as diet was the lowest favorable one, where the predator female deposited 33.05 eggs at 35 ºC. Generally, Collembola proved to be the more suitable prey as resulted in more deposited eggs and longer life span.
Egyptian Academic Journal of Biological Sciences. A, Entomology
Egyptian Society of Biological Sciences
1687-8809
9
v.
2
no.
2016
1
6
https://eajbsa.journals.ekb.eg/article_12779_6a989135c1eb89f1a9a647269647eb44.pdf
dx.doi.org/10.21608/eajbsa.2016.12779
Influence Of Plant Phenology (As Plant Age) And Some Weather Factors On Aphis gossypii Glover Population On Four Solanaceae Crops
Mostafa
M.
Plant Protection Research Institute, A.R.C. Dokki, Giza, Egypt
author
Amina
Abdel-Rahman
Entomology Dept., Fac. Sci., Cairo Univ., Giza, Egypt
author
A.
Younis
Entomology Dept., Fac. Sci., Cairo Univ., Giza, Egypt
author
E.
Yassin
Plant Protection Research Institute, A.R.C. Dokki, Giza, Egypt
author
Rania
Saber
Plant Protection Research Institute, A.R.C. Dokki, Giza, Egypt
author
Monira
El-Fatih
Plant Protection Research Institute (PPRI), ARC,12618, Egypt
author
Azza
Emam
Plant Protection Department, Faculty of Agriculture, Ain Shams Univ
author
M.
Abou-Setta
Plant Protection Research Institute (PPRI), ARC,12618, Egypt
author
S.
Saleh
Central Laboratory for Agricultural Climate (CLAC), ARC, Egypt.
author
S.
Darbein
Plant Protection Research Institute (PPRI), ARC,12618, Egypt.
author
text
article
2016
eng
Experimental trials were conducted on four different vegetable Solanaceae crops; namely tomato, white eggplant, spicy pepper and potato throughout 2013 early summer growing season at the Agricultural Research Center Experimental Station (Qaha), Qalyoubia Governorate, Egypt.
Results revealed that the combined effect of the three weather factors (i.e. maximum and minimum temperatures and relative humidity) did not fully explained the variance in the population density over time. Explained variance (EV) was 19.98, 62.23, 60.62 and 59.7 % for tomato, eggplant, pepper and potato plants, respectively.
Considering plant phenology as plant age (X) (presented by three degree polynomial equation, Y= a + b1X+ b2X2+ b3X3) revealed the most relation to the variance in population. EV was 49.67, 90.58, 76 and 84.22% for tested plants, respectively.
The added effect of weather factors to the plant age revealed EV as 74.32, 92.24, 83.45 and 94.02% for tomato, eggplant, pepper and potato plants, respectively. These added values did not seem to be significant.
These results do not eliminate the effect of weather factors on the population dynamics. Under laboratory conditions; these factors may reveal a great deal of effect. Under field conditions these factors firstly affect the plant growth which makes the plant more palatable for infestation. So plant phenology as plant age took over the effect of weather factors mathematically.
Egyptian Academic Journal of Biological Sciences. A, Entomology
Egyptian Society of Biological Sciences
1687-8809
9
v.
2
no.
2016
7
14
https://eajbsa.journals.ekb.eg/article_12840_1d3f8c3a4b297d9b018911f2d3013973.pdf
dx.doi.org/10.21608/eajbsa.2016.12840
Morphological Changes and Colony Activity in Honeybee Workers Apis mellifera Produced from Irradiated Queens.
Sawires
G.
Nat. Prod., Dep., NC RR T, Atomic Energy Authority, Cairo, Egypt
author
Sawsan
Abdelmegeed
Plant Protec., Dep., Fac. of Agric., Ain Shams Univ., Cairo, Egypt.
author
text
article
2016
eng
The present work was carried out to study effect of different doses of ionizing gamma irradiation on honey bee queens soon after emergence, i.e. as virgins, and also mated queens on eggs laying as number of sealed brood, and workers progeny and possible occurrence of any induced morphological changes in workers as well as their performance in colony activity as honey production.
The exposed virgin and mated queens did not affected by different low doses of radiation (20 - 200 rad), except the number of sealed brood cell produced by irradiated virgin queens was decreased at dose 200 rad, high dose of irradiation (400 rad) caused a complete died in virgin queens while mated queens irradiated by 400 rad produced significant low numbers of sealed brood.
Bee honey production was significantly decreased only when virgin or mated queens irradiated with high dose (400 rad).
No significant changes in the measurement of workers appendages, such as flagellum, hind wings, fore and hind legs as a result of exposing virgin queens to doses between 20 and 200 rad, except fore wing reduced in length and width only at dose 200 rad. In case of mated queens, the above mentioned measurement did not affected at doses between 2o and 200 rad while significant decreased in the morphological measurement was occurred at dose (400 rad).
Egyptian Academic Journal of Biological Sciences. A, Entomology
Egyptian Society of Biological Sciences
1687-8809
9
v.
2
no.
2016
15
21
https://eajbsa.journals.ekb.eg/article_12841_bff64d66b6adaccebc02e995c9f5c2c7.pdf
dx.doi.org/10.21608/eajbsa.2016.12841
Effect of Planting Dates on Infestation with Certain Pests and Yield of Cucumber Plants During Fall Plantation in Giza Governorate.
Shaalan
S.
Plant Protection Research Institute, (A.R.C), Giza, Egypt.
author
text
article
2016
eng
The effect of three planting dates of cucumber seeding during fall plantation (August, 1st, August, 22nd and September, 12th) on levels of infestation with four pests, aphid, Aphis gossypii Glover, whitefly, Bemisia tabaci (Genn.), thrips, Thrips tabaci Lind. And Tetranychus urticae (Koch) and on yield of this plant, were studied during two successive seasons (2014 and 2015). The degree of infestation by A. gossypii and B. tabaci increased significantly by delaying planting date, as cucumber plants cultivated in the earliest planting date (August, 1st) were attacked by the lowest numbers and highest weight of cucumber fruits, while the plants of the latest planting date (September, 12th) were more liabled to insects infestation with lowest weight of cucumber fruits. The results showed that, the mean rate of infestation with A. gossypii were (5.1, 9.2 and 11.9 individuals/leaf) during 2014 season and (5.5, 10.6 and 12.4 individuals/ leaf) during 2015 season for the three tested dates, respectively. So, the mean number of infestation with B. tabaci were (8.5, 15.4 and 13.6 nymphs/ leaf) during 2014 season, (7.8, 13.7 and 12.2 nymphs/ leaf) during 2015 season for the three dates, respectively. also, the highest weight of cucumber yield (20.5 and 19.7 kg/ 100m2 in the two seasons, respectively) was obtained. On the contrary, the populations of T. tabaci and T. urticae increased significantly with the early planting date compared with cucumber plants cultivated in the latest planting date during the two seasons. Therefore, it was concluded that, the planting date was effective on the rate of infestation with pests and yield of cucumber plants.
Egyptian Academic Journal of Biological Sciences. A, Entomology
Egyptian Society of Biological Sciences
1687-8809
9
v.
2
no.
2016
23
31
https://eajbsa.journals.ekb.eg/article_12842_42312786d1e45e049d81ba1336ed88a0.pdf
dx.doi.org/10.21608/eajbsa.2016.12842
An Updated and Illustrated Review to the Identification of the Genera Aceria Keifer and Eriophyes Von Siebold (Acari : Eriophyidae) in Egypt
Halawa
Abdallah
Fruit Acarology Department – Plant Protection Research Institute (PPRI)- Agricultural Research Center (ARC).
author
Ebrahim
A.
Fruit Acarology Department – Plant Protection Research Institute (PPRI)- Agricultural Research Center (ARC).
author
Abdallah
M.
Fruit Acarology Department – Plant Protection Research Institute (PPRI)- Agricultural Research Center (ARC).
author
Azza
Mohamad
Cotton and Field Crop Acarology Department, Plant Protection Research Institute (PPRI), Agricultural Research Centre (ARC), Egypt.
author
Hosam
El-Gepaly
Biological Control Department, Plant Protection Research Institute (PPRI), AgriculturalResearchCentre (ARC), Egypt
author
El-Sebaay
M.
Fruit Acarology Department, Plant Protection Research Institute (PPRI), Agricultural Research Centre (ARC), Egypt.
author
text
article
2016
eng
This paper provides a synopsis of two genera from eriophyoid mites in Egypt, with an identification key to two genera (Aceria and Eriophyes) and 33 species; 30 of them belong to genus Aceria and 3 from genus Eriophyes. Ten synonyms of mite species and host plant were recorded. A new species, Aceria rotundus sp. nov. found on Cyperus rotundus L. (Cyperaceae Juss.) from Sohag province, Egypt was described and illustrate.
Egyptian Academic Journal of Biological Sciences. A, Entomology
Egyptian Society of Biological Sciences
1687-8809
9
v.
2
no.
2016
33
59
https://eajbsa.journals.ekb.eg/article_12843_0d181436bb85ea527d33a8e5252e80a2.pdf
dx.doi.org/10.21608/eajbsa.2016.12843
Some Biological Aspects of the Two-Spotted Spider Mite, Tetranychus urticae Koch, (Acari: Tetranychidae) at Constant Temperatures
Salwa
Sholla
Plant Protection Research Institute, Agricultural Research Center
author
text
article
2016
eng
Biology of the two spotted spider mite, Tetranychus urticae Koch was studied at constant temperatures of 26º and 30ºC. A temperature of 30º was found to be the most favorable temperatures for the development and multiplication of this pest. Threshold temperatures (t0) of 12.87º, 12.92º, 9.45º, and 13.94 ºC were calculated for the egg, larvae, protonymph and deutonymphal stages, respectively. Based on these thresholds the stages respectively needed about 63.35, 26.81, 30.95, and 26.17 day-degrees to complete their development. Thermal units required to develop one generation of this pest was about 146.48 day-degrees using 12.50ºC as a base temperature.
Egyptian Academic Journal of Biological Sciences. A, Entomology
Egyptian Society of Biological Sciences
1687-8809
9
v.
2
no.
2016
61
68
https://eajbsa.journals.ekb.eg/article_12844_8dc6503c550ef50011640352cddb7129.pdf
dx.doi.org/10.21608/eajbsa.2016.12844
Feeding sequnce of Aphis craccivora koch by Different Levels of Infestation Density on Differenparts of Faba Bean under Labouratory Condition
Abd El- Wareth
M.
Plant Protection Research Institute, ARC, Dokki, Giza, 12618 Egypt
author
text
article
2016
eng
The present study was done to determine the effect and evaluate of three infestation levels 0, 5 and 10 aphids (Aphis craccivora Koch) / plant on faba bean, V. faba L. plans (Giza 402 cv.) at different parts and statues of plant over four infestation periods. The result of this study showed that significant effect of initial aphid infestation, time of infestation and periods after infection (feeding period) all treatments, on the weight of both shoot and roots (fresh and dry) and the plant height. Faba bean plants were died at the fourth week after infestation. A. craccivora individuals were developed during low infestation level (5 individuals) and significant but less than numbers during high initial infestation (10 individuals).
Egyptian Academic Journal of Biological Sciences. A, Entomology
Egyptian Society of Biological Sciences
1687-8809
9
v.
2
no.
2016
69
75
https://eajbsa.journals.ekb.eg/article_12845_8b276bdd9e7ad9a8d02be1e1c690c0f6.pdf
dx.doi.org/10.21608/eajbsa.2016.12845
Incidence and Population Dynamic of the Spiders on Date Palm Trees in Qaluobia and Beni –suif Governorates
Khalil
M.
Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt
author
H.
Azouz
Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt
author
Amal
Abu-Zaid
Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt
author
Hosnea
Afifi
Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt
author
text
article
2016
eng
Spiders are among the most abundant predators recorded on date palm trees in Beni-Suif and Qaluobia Governorates. They are voracious predators, and combined with their high abundance, which play an important role in the reduction of different pests' populations. Field trials were conducted in QaluobiaandBeni–SuifGovernorates during the period of October 2013 to October 2014 to show he incidence of different spiders. Obtained data recorded that the collected predaceous spiders were identified into 14 families in Beni-Suif included 11 families recorded in Qaluobia as follows; Theridiidae, Philodromidae, Thomisidae, Lycosidae, Linyphiidae, Gnaphosidae, Dictynidae, Miturgidae, Araneidae, Tetragnathidae, Agelemidae, Scytodidae, Filistadae and Uloboridae. Also a ratios of these count, indicated that an average of 25 % of spider families and spices were absent from palm in Beni–Suif Governorate. On the other hand, under these families recorded 19 species of predator. The most numerous spiders species collected from date palm, Phoenix dactylifera at Beni–Suif Governorate were 227 individuals of Steatoda pykuliama, while the high number of predators species collected from Qaluobia Governorate were 223 individuals of Filistata hibernalis.
Egyptian Academic Journal of Biological Sciences. A, Entomology
Egyptian Society of Biological Sciences
1687-8809
9
v.
2
no.
2016
77
81
https://eajbsa.journals.ekb.eg/article_12846_5b380a181689ea29554b5389bfcb1438.pdf
dx.doi.org/10.21608/eajbsa.2016.12846
Effect of Different Fertilization Types on the Population Dynamics of Mites Inhabiting Soil Underneath Cotton Plants in Giza Governorate, Egypt.
Nahla
Abdel-Azeim
Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt
author
S.
Abolmaaty
The Central Laboratory for Agrriculture Climate, Agricultural Research Centre,
Dokki, Giza, Egypt.
author
M.
Abdel- Azeim
Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt.
author
E.
Yassin
Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt.
author
text
article
2016
eng
The fertilization have an important role in the abundance and population of different mite species associated with different agricultural crops. As a result of experiment and investigation on the population of mites inhabiting soil underneath Cotton (Gossypium barbadense L.) in Giza Governorate, (Kerdasa region) during April to September 2014 and 2015 to study the effect of applying lay soil with the rice straw as organic wastes with the inoculation with Humic acid both separately or together on the population of different soil mites. The obtained results revealed the presence of 17 different mite species belonging to 11 families related to four suborders, Prostigmata (Actinedida), Mesostigmata (Gamasida), Astigmata (Acaridida) and Cryptostigmata (Oribatida) associated with soil of cottonplants treated with different types of fertilizers. The percentage of collected four soil mites suborders, the actinedids were higher in the abundance inhabiting cotton plantssoil in comparison with other three collected mite groups, followed by oribatid mites, followed by acaridid mites but the gamasid mites abundance was the lower category in all three tested methods of fertilization. The obtained data demonstrated that the mean number of collected mites in case of using recommended + humic acid fertilization method was higher than those recorded in recommended only and in case of recommended + humic + rice collectively. The study also indicated that the collected different mites during 2015 cultivated season were higher in number than those obtained during the first season 2014. The obtained data also demonstrated that September 2014 was the most study period harbored collected mites in all different methods of fertilization.
Egyptian Academic Journal of Biological Sciences. A, Entomology
Egyptian Society of Biological Sciences
1687-8809
9
v.
2
no.
2016
83
88
https://eajbsa.journals.ekb.eg/article_12847_23dd5ae6e11d3040f6da0637bf486554.pdf
dx.doi.org/10.21608/eajbsa.2016.12847
Thermal Requirements of the Peach Fruit Fly, Bactrocera zonata (Saunders) (Diptera: Tephritidae), and its Exotic Parasitoid Species Aganaspis daci (Weld) (Hymenoptera: Eucoilidae)
Dalia
Adly
Biological Control Research Department, Plant Protection Research Institute, Agriculture Research Center, Egypt.
author
text
article
2016
eng
The peach fruit fly, Bactrocera zonata (Saunders),is one of the serious invasive insect pests attacking tropical and subtropical fruits. The exotic parasitoid Aganaspis daci (Weld) is a solitary larval-pupal parasitoid of several fruit fly species. The influence of temperature on developmental periods of B. zonata and A. daci were studied at five constant temperatures (15, 20, 25, 30 and 35oC), 60± 5% R.H. and 14L: 10D photoperiod. The developmental time of egg, larval, pupal stages and egg to adult were estimated for B. zonata and A. daci. The longest total developmental period was recorded 59.3±0.18 and 108.9±0.32day, for B. zonata and A. daci, respectively, at 15oC. A. daci could not complete its life cycleat 35°C because the eggs didn't hatch. All temperatures at total developmental time of the parasitoid were longer than that of the host. The developmental thresholds of the egg, larval, pupal stages and egg to adult were 12.17, 6.45, 9.79 and 9.19 °C for B. zonata, and 14.35, 8.78, 10.43 and 10.7 °C for A. daci, respectively. The thermal unit requirements (k) value of the parasitoid was higher than those of its host they were 434.78 and 384.6 degree-days, respectively. This parasitoid can be used as a part of a biological controlling program but it is not expected to be a key agent for control B. zonata.
Egyptian Academic Journal of Biological Sciences. A, Entomology
Egyptian Society of Biological Sciences
1687-8809
9
v.
2
no.
2016
89
96
https://eajbsa.journals.ekb.eg/article_12848_015691e2f9639bf8507c339d92e7f54f.pdf
dx.doi.org/10.21608/eajbsa.2016.12848
Population Fluctuation of the Peach Fruit Fly, Bactrocera zonata (Saunders) (Diptera, tephritidae) on Different Mango Varieties in Ismailia Governorate, Egypt.
Seham
Elmahdy
Plant Protection Institute, A.R.C., Dokki , Giza, 12618 Egypt
author
Afia
E.
Plant Protection Institute, A.R.C., Dokki , Giza, 12618 Egypt
author
text
article
2016
eng
The population fluctuation of the peach fruit fly, Bactrocera zonata on some mango varieties (early mature “Hendy & Founs”; medium mature “Zebdia & Awyesy” and late mature “Fagrklan & Kent") were studied throughout two successive seasons 2013/2014 at Abosoyr district, Ismailia. B. zonata has (two peaks) on med of July &August and (one peak) at end of July in early mature mango variety during the two successive seasons, respectively. In medium mature mango variety there were three one peak at the beginning of August and two peaks at late of August and September during the two successive seasons, respectively. Meanwhile, in case of late-mature mango varieties only one peak at the beginning and end of October were recorded in the two successive seasons, respectively.
Statistical analysis of variance in 2013 /2014 season showed combined effect of the weather factors to the ripping stage of the fruit revealed EV were high significant as (88.09 and 78.64%), (86.06 and 86.30%) and (80.19 and 81.90%) on B. zonata population in the three tested varieties (early, moderate and late varieties) compared with the three weather factors separately. In addition, the simple correlation during the second seasons between the maximum temperature and CTD of B. zonata was positive significant in early variety. While the medium-mature mango varieties, was significant between the maximum temperature and CTD number of B. zonata in medium mature mango variety during the two successive seasons , while the minimum temperatures and CTD number of B. zonata were significant and high significant during the two successive seasons, respectively. On the other hand, the simple correlation during the two seasons between relative humidity all tested mango varieties was insignificant and However late mango variety were insignificant between the maximum and minimum temperatures and CTD number of B. zonata .
From here we can say that both physiological and biological factors of fruits flies as well as the maturity states of the three varieties of mangoes play an integral role in environmental factor with presence of the in the pests in Ismailia governorate
Egyptian Academic Journal of Biological Sciences. A, Entomology
Egyptian Society of Biological Sciences
1687-8809
9
v.
2
no.
2016
97
105
https://eajbsa.journals.ekb.eg/article_12849_1f73948d0d9044272778473f64c14b14.pdf
dx.doi.org/10.21608/eajbsa.2016.12849
Toxicological Effects of Hematite Nanoparticles on the Common House Mosquito, Culex pipiens L. (Diptera: Culicidae)
Reda
Bakr
1-Department of Entomology, Faculty of Science, Ain Shams University
2-Department of Biology, Faculty of Science and arts, Baisha University, Baisha, KSA
author
Noha
Guneidy
Department of Entomology, Faculty of Science, Ain Shams University
author
Mohammed
Attia
Department of Chemistry, Faculty of Science, Ain Shams University
author
Ibrahim
Elsebaey
Department of Entomology, Faculty of Science, Ain Shams University
author
text
article
2016
eng
The obtained work aimed to evaluate the efficiency of hematite nanoparticles as larvicidal agents against Cx. pipiens larvae. Hematite nanoparticles were synthesized by a simple hypothermal method. The obtained nanoparticles average size was below 50 nm. TEM images determined the size and morphology of nanoparticles. Serial concentrations were applied on mosquito larvae. It was found that LC50 of hematite nanoparticles after 48 hours of treatment was 5.6997 ppm. The obtained results added a new weapon to control mosquitoes. It is suggested to investigate the joint action of nanoparticles with other insecticides to which insects had developed resistance.
Egyptian Academic Journal of Biological Sciences. A, Entomology
Egyptian Society of Biological Sciences
1687-8809
9
v.
2
no.
2016
57
62
https://eajbsa.journals.ekb.eg/article_12855_29c876d6ce93352a5b3ea7dc5d55e9e8.pdf
dx.doi.org/10.21608/eajbsa.2016.12855