eng
Egyptian Society of Biological Sciences
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
2090-0813
2017-05-01
10
3
1
7
10.21608/eajbsa.2017.12523
12523
Original Article
Efficacy of Modified Atmospheres in Controlling Museum Insect Pests, Anthrenus verbasci (Coleopetra: Dermestidae) and Tinea pellionella (Lepidopetra: Tineidae) >>
Nagwa El-Shafeay
1
Hoda Abdel Fattah
2
Mohamed Abdou
3
Ahmed Darwish
4
Sawsan Darwish
5
Bahira El Sawaf
6
Center of Researches & Conservation of Antiquities, Cairo, Egypt
Department of Entomology, Faculty of Science, Ain Shams University
Department of Entomology, Faculty of Science, Ain Shams University
Plant Protection Department, Faculty of Agriculture, Benha University
Plant Protection Department, Faculty of Agriculture, Benha University.
Department of Entomology, Faculty of Science, Ain Shams University
This report presents the results of the first laboratory investigation for the control of insect pests of museums, using the modified atmosphere (MA). The efficacy of using (MA); including argon or nitrogen gases against the larvae and adults of Anthrenus verbasci and Tinea pellionella was evaluated. The lethal time (LT50 and LT95) was determined for different exposure periods at 20ᵒC and 30ᵒC. Argon atmosphere achieved higher mortality than nitrogen for both insect species. The adults were more sensitive than larvae and the mortality was generally higher at elevated temperature. The univariant factorial ANOVA was used to clarify the relationship between the types of gases, the time of exposure and temperature to achieve higher mortality percentages of adults and larvae of both pests. The exposure to an atmosphere of approximately 0.01% oxygen and 99.9% argon or nitrogen was successful in limiting survival of the tested pests among the developmental stages and this condition is accelerated by warmer temperature (30˚C), with the exposure time required to give complete kill, being shorter for argon.
https://eajbsa.journals.ekb.eg/article_12523_042db619ea3ed11e3e2c16c8058379a7.pdf
Anthrenus verbasci
Tinea pellionella
modified atmospheres
Argon
nitrogen
museum pests
eng
Egyptian Society of Biological Sciences
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
2090-0813
2017-05-01
10
3
9
16
10.21608/eajbsa.2017.12526
12526
Original Article
Temperature-Based Life History and Life Table Parameters of the Two Spotted-Spider Mite (Acari: Tetranychidae) on White Frangipani
Reham Abo-Shnaf
riamaboshnaf@yahoo.com
1
Vegetable and Aromatic Plant Mites Department, Plant Protection Research Institute, Agricultural Research Centre, Dokii, Giza, Egypt
The effect of three constant temperatures on life history and life table parameters of the two spotted-spider mite, Tetranychus urticae Koch on White Frangipani (Plumeria alba) leaves was estimated under laboratory conditions. The two spotted-spider mite was reared on units made of P. alba leaves at 20, 25 and 30±2 °C and 70±5% relative humidity. Mites successfully completed their development and reproduced at all tested temperatures, where the developmental time, oviposition period, adult longevity and life span decreased with increasing temperatures, while daily oviposition rate and fecundity increased with increasing temperatures. The high reproduction rate of 106.00 eggs/ female suggested that the high temperature degree (30ºC) was assessed to be one of the best degrees to help the individuals to perform and oviposit faster in regard to the acceleration of life cycle period to 6.03 and 4.63 days respectively in female and male. The results indicated that T. urticae had a wide range of temperature for its development, however, the highest intrinsic rate of natural increase (rm = 0.3057) occurred at 30 ºC, where the population increased fastest at this temperature.
https://eajbsa.journals.ekb.eg/article_12526_0f1a8f64638f8ac1bcf80df45ee8312c.pdf
Tetranychus urticae
Developmental rate
Survivorship
Reproduction
Plumeria alba
Egypt
eng
Egyptian Society of Biological Sciences
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
2090-0813
2017-05-01
10
3
17
28
10.21608/eajbsa.2017.12529
12529
Original Article
Interpretation of Susceptibility Phenomenon of Four Tomato Cultivars to Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae).
El-Badawy S.
1
Azza Emam
2
S. Moussa
3
Heba Al-Ghanam
4
S. Darbin
5
Plant protection Research Institute- Agriculture Research Center, Dokki, Giza, Egypt
Department of Plant protection, Faculty of Agriculture, Ain Shams University, Cairo, Egypt.
Plant protection Research Institute- Agriculture Research Center, Dokki, Giza, Egypt
Plant protection Research Institute- Agriculture Research Center, Dokki, Giza, Egypt
Plant protection Research Institute- Agriculture Research Center, Dokki, Giza, Egypt
The selected four tomato cultivars {(Alissa F1, Super strain B, G.S 12 F1and Logain (E603 F1)} differed in their susceptibilities to the tomato borer, Tuta absoluta in the two studied successive years (2013 and 2014). Seasonal abundance of this pest was higher in early summer and summer plantations of year 2013 than that recorded in year 2014. The highest seasonal mean number was recorded on Alissa cultivar for both studied years followed by Super strain cultivar then G.S. cultivar. While the lowest mean number was achieved with Logain cultivar.
The essential oil analysis by GC/MS of four tomato cultivars leaves revealed the presence of 33 peaks. A total of 33 components of the essential oil were identified. Aliphatic hydrocarbons terpenes compounds were found to be the most abundant volatiles in the four tomato cultivars except G.S. cultivar. The analyses revealed that the major identified aliphatic hydrocarbon components in the leaves oil of Logain and Alissa tomato cvs. (The lowest and the highest infestation with T. absoluta) were Octacosane, Hexacosane, Triacontane, Heptacosane, Nonacosane, Tetratriacontane, Hexatriacontane and Tetracosane. Susceptibility interpretation of Logain and Alissa tomato cvs. to T. absoluta may be attributed to the presence of high contents of the toxic and repellent hydrocarbons octacosane and hexacosane in Logain tomato cv. and high content of the attractant hydrocarbon tetracosane in Alissa cv. From these results it can be recommend to use the tolerable Logain tomato cultivar in breeding programs and also, preparing a commercial product/formulation from hydrocarbons octacosane and hexacosane to be used as repellent and tetracosane as a trap to T. absoluta.
https://eajbsa.journals.ekb.eg/article_12529_049c612454ce2beb3b8d904348ab56b0.pdf
Tomato cultivars
Tuta absoluta
Essential oils
susceptibility
eng
Egyptian Society of Biological Sciences
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
2090-0813
2017-05-01
10
3
29
34
10.21608/eajbsa.2017.12532
12532
Original Article
Bioactivity of Trichoderma (6-Pentyl α-pyrone)against Tetranychus urticae Koch (Acari: Tetranychidae)
Salwa E .
1
Metwally Kottb
2
Plant Protection Research Institute (PPRI) Giza – Egypt
Department of Botany, Faculty of Science, Suez Canal University, Ismailia, Egypt.
Several Trichoderma speciesare used as biocontrol agents due to their high potentiality to produce a widearray of bioactive secondary metabolites; (some of these metabolites are lowmolecular weight volatiles). Trichoderma asperellum was isolated fromthe rhizosphere of Zea mays at Ismailia, which showed high antifungal andnematoicidal activity from our preliminary experiments. Bioactivity of T. asperellumagainst mite Tetranychus urticae koch was tested. Data showed that highmortality was observed after exposure time (48 hrs.) and reached 100%. Themajor volatile compound emitted from T. asperellum was identified to be6-pentyl- α-pyrone (6PP), with rate 450 ng/µl. This high level of 6PP motivatedus to apply different concentrations of pure compound (0.125, 0.25, 0.50 and1mM of 6PP (sigma) to find out their effect
https://eajbsa.journals.ekb.eg/article_12532_66b2f26901f33498557d8d8f464f2931.pdf
Trichoderma
Volatiles
fungi
Mites
Biocontrol
eng
Egyptian Society of Biological Sciences
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
2090-0813
2017-05-01
10
3
35
41
10.21608/eajbsa.2017.12538
12538
Original Article
Studies on Biology of Ascid mite, Blattisocius keegani (Acari: Gamasida: Ascidae) When Fed on Two Astigmatid Mites at Different Laboratory Conditions
Essam Yassin
1
Asmaa Abd El-Khalik
2
M. El-Sebaay
3
S. Osman
4
Plant Protection Research Institute, A.R.C. Dokki, Giza, Egypt
Plant Protection Research Institute, A.R.C. Dokki, Giza, Egypt
Plant Protection Research Institute, A.R.C. Dokki, Giza, Egypt
Plant Protection Research Institute, A.R.C. Dokki, Giza, Egypt
Blattisocius keegani (Mesostigmata: Ascidae) is a predatory mite that hastraditionally been studied as a biological control agent in stored products.The developmental time (incubation period, life cycle and longevity), fecundityand food consumption of the predatory mite B. keegani (Fox) (Ascidae)were investigated at 25 and 35°C and 75% R.H when fed on the two astigmatidmites, Rhizoglyphus echinopus and Lepidoglyphus destructor.Theincubation period of B. keegani was not affected when fed on the preysat tested temperature. The duration of life cycle for both sexes of B.keegani was obviously affected by the type of food employed at differenttemperature. The longest period lasted 12.6 days when predatory females fed on R.echinopus larvaeat 25ºC, but the shortest period recorded on L. destructor larvae at35ºC for predator males was 10.22 days.The female longevity of B. keegani was also affectedwhen the predator fed on the two tested preys at two temperature, as the maximum longevity was 26.7 days for female at 25ºC on R. echinopuslarvae, and the minimum corresponding period was 16.54 days for male on L. destructor at 25ºC. Theadult female of B. keegani laid the highest number of eggs (41.6)when fed on R. echinopus at 35ºC, while the lowest number of eggs was observedwhen fed on L. destructor larvae (35.4 eggs) at 25ºC. The food consumption of the different predator stagesincreased with its growth. The larval stage of both female and male had theleast prey consumption than the other stages (protonymph and deutonymph) andthe predator male individuals consumed lower number of introduced prey than thefemale individuals. The total amount of consumed prey individuals duringthe whole life span was 88.9 larvae of R. echinopus at 25ºC, changed torecord 98.0 preys at 35ºC, while, the number of devoured L. destructorwas 81.6 and 87.2 prey at 25 and 35ºC, respectively. The B. keeganimale devoured 80.0 & 85.0 larvae of R. echinopus and 74.8 & 80.7larvae of L. destructor at 25 and 35ºC., respectively.
https://eajbsa.journals.ekb.eg/article_12538_2b47c18d84478ef526ba25fb1be134f8.pdf
Blattisocius keegani
biology
food consumption
Prey
Rhizoglyphus echinopus
Lepidoglyphus destructor
eng
Egyptian Society of Biological Sciences
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
2090-0813
2017-05-01
10
3
43
51
10.21608/eajbsa.2017.12645
12645
Original Article
Biological and Biochemical Alterations Associated with Sterility Induced by Gamma Radiation on Parents and First Generation Males of Helicoverpa armigera (Hübner)
Rehab Sayed
rehab.omar@yahoo.com
1
Nagwan Zahran
2
Natural Products Research Department, National Center of Radiation Research and Technology, Atomic Energy Authority, Cairo, Egypt
Natural Products Research Department, National Center of Radiation Research and Technology, Atomic Energy Authority, Cairo, Egypt
The efficiency of substerile gamma radiation dose on biological, biochemical analysis of the essential nutritive components (total protein, lipids and carbohydrate concentrations), and the sexual hormones (free testosterone and follicle stimulating hormone) of male Helicoverpa armigera (parent generation P and first generation F1)irradiated as full grown male pupae were studied. The results revealed that there was a significant decrease in emergence percentage of P and F1 generations with increasing radiation dose, which noted that the sex ratio of P and F1 generations were in favour of male. The fecundity and fertility of P and F1 were decreased. However, the sterility percentage of P and F1 generations was increased by increasing the radiation dose which was more pronounced in F1 than in P. A negative significant correlation was found between both of the larval duration and pupation percentage of F1 and the increase of radiation dose. The results indicated a significant decrease in the essential nutritive components (total protein, lipids, and carbohydrate concentrations) and the sexual hormones (free testosterone and follicle stimulating hormone). Furthermore, the reduction was more in F1 than in P males. In general, it was obvious that the substerile gamma radiation doses enhanced an inherited sterility in H. armigera. Therefore, it could be concluded that inherited sterility of H. armigera may contribute to reduction of insecticides application or may integrate with other safe control methods in controlling H. armigera.
https://eajbsa.journals.ekb.eg/article_12645_02dcd6a70d2eb19ab447aefc827bbd0e.pdf
Helicoverpa armigera
gamma radiation
hormone level
nutritive components
eng
Egyptian Society of Biological Sciences
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
2090-0813
2017-05-01
10
3
53
63
10.21608/eajbsa.2017.12648
12648
Original Article
Scanning Electron Microscope of Genus Leichenum Dejean, 1834 (Coleoptera: Tenebrionidae: Tenebrioninae: Pedinini) in Egypt
Neven Elmetwly
1
Dalia Elshewy
2
Manal Elshaier
3
Galhoum M.
4
Plant Protection Research Institute, Giza, Dokky, Egypt
Plant Protection Research Institute, Giza, Dokky, Egypt
Faculty of Science, Al -Azhar University, Cairo, Egypt
Faculty of Science, Al -Azhar University, Cairo, Egypt
In Egypt genus Leichenum is represented by two species, Leichenum mulleri Grid., 1939 and Leichenum pulchellum Kust., 1849. Few studies have reported on both species all over the world. Both species are difficult for species identification so, the present study was examined specimens by SEM and found microstructural characters that facilitate identification of them. A number of new characters were added to the previous e.g. shape of setae and other vestitures, shape and structure of the intercoxal processes and submentum, also some old characters were emended.
https://eajbsa.journals.ekb.eg/article_12648_f7619571f3a2a59b532986912984919b.pdf
Taxonomy
SEM
Leichenum mulleri
Leichenum pulchellum
Egypt
eng
Egyptian Society of Biological Sciences
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
2090-0813
2017-05-01
10
3
65
70
10.21608/eajbsa.2017.12651
12651
Original Article
Relationship Between Number of Grafted Queen Cell Cups and Amount of Produced Royal Jelly in Honey Bee Colonies Apis mellifera L.
Ali M.
1
Department of Plant Protection, Faculty of Agriculture, Ain Shams University, Cairo, Egypt
The experiment curried out to study the effect of number of grafted cell cups on number and percentage of accepted queen cells and the amount of royal jelly produced. 45 queen cell cups fixed on three alternated rows (or 15 X 3) on one wide cell-bar (3.5 X 42 cm) were used. The experimental colonies were divided into four different groups; each group was received 45, 90, 135 and 180 queen cells/colony on one, two, three and four cell bars, respectively. The experimental colonies were grafted with 24hrs old-larvae and the royal jelly was collected after 2.5 days after grafting (i.e. when the larvae became 3.5 days-old) and three successive cycles (batches) of royal jelly production were processed at 2.5 days intervals. The data indicated that the amount of produced royal jelly increased by increasing the number of grafted queen cell cups to reach the maximum (49, 88 g/colony) when 180 queen cells were used. These amounts decreased to 17.50, 38, 84 and 45.29 (g/colony) when 45, 90 and 135 queen cell cups were used, with significant differences between them. Regarding the amount of produced royal jelly/queen cell, the honey bee colonies grafted with 180 queen cells on four wide cell bars significantly obtained less amount of royal jelly per cell (132.26 mg/cell), followed by those grafted with 135 queen cells in three wide bars (150.76 mg/cell). Whereas the honey bee colonies grafted with 90 queen cells in two wide bars significantly obtained the highest amount of royal jelly per cell (196.48 mg/cell). Irrespective the number of queen cells, the first graft (batch) produced signify.
https://eajbsa.journals.ekb.eg/article_12651_3ffe02b8408331c5c1a880fd6ce96ea4.pdf
Honey Bees
Apis mellifera
mass royal jelly production
wax queen cells
queen less colonies
eng
Egyptian Society of Biological Sciences
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
2090-0813
2017-05-01
10
3
71
79
10.21608/eajbsa.2017.12653
12653
Original Article
Evaluation of Nutritive Value of Some Medical Plants for Honey Bee Colonies (Apis mellifera L.).
Ali M.
1
Rawdaa Khalil
2
Department of Plant Protection, Faculty of Agriculture, Ain Shams University, Cairo, Egypt
Department of Plant Protection, Faculty of Agriculture, Ain Shams University, Cairo, Egypt
This study was conducted to evaluate the effect of different feeding treatments of some medical plantson brood production, population development of honey bee colonies and storage honey. Seven feeding treatments were carried out during March 2016to July2016. The feeding treatments were (sugar bush leaves (Stevia rebaudiana), moringa leaves (Moringa oleifera) in honey syrup (67%), tomatillo/jamberry (Physalis peruviara) in honey syrup (67%), guava (Psidium guava) in honey syrup (67%), coriander (Coriandrum sativum) in honey syrup (60%), honey syrup (67%) and sugar syrup (1 sugar:1 water).Colonies were equalized in number of frames covered with bees and brood areas and had young fertilized queen bees of the same age. Feeding was conducted at 10-day intervals with 500 ml syrup/colony of each treatment. The brood production and population development were recorded at 30 day-intervals. It was shown that brood production was significant highest in the honeybee colonies which fed on coriander, tomatillo/jamberry, guava and sugar syrup without significant deterrence between them (7083.17, 5652.58, 5287.08 and 6321.67 brood areas (Cm2)/colony), respectively. Population development and honey storage were significant highest in honeybee colonies which fed on coriander (9.17 frames bees/colony and 4.50 frames honey/colony). The group fed on sugar bush and moringa syrup significantly did not increase brood area and honey bee population as compared with other groups.
https://eajbsa.journals.ekb.eg/article_12653_eef3df9ca84b644be4acf67802487948.pdf
Honey bees Apis mellifera Feeding sugar bush
moringa tomatillo/jamberry guava coriander honey syrup sucrose syrup population development
eng
Egyptian Society of Biological Sciences
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
2090-0813
2017-05-01
10
3
81
88
10.21608/eajbsa.2017.12655
12655
Original Article
Threshold Temperatures and Thermal Requirements for the Development of the Olive Leaf Moth; Palpita unionalis Hbn. (Lepidoptera: Pyralidae)
Hassan Dahi
1
Walaa Ibrahim
2
Amany . Mansour
3
Ahmed Imam
4
Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt.
Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt.
Plant Protection Department, Desert Research Center, El Matariya, Cairo, Egypt.
Plant Protection Department, Desert Research Center, El Matariya, Cairo, Egypt.
Olive leaf moth, Palpitaunionalis (Hubner) (Lepidoptera: Pyralidae) is one of the dangerous pestsattacking sapling olive trees and nurseries, tender shoots and ripening fruitsinducing economic losses. Accordingly, great efforts were dedicated to reduceits infestation. The current study aimed to calculate temperature thresholds (t0)and accumulated heat units (dd’s) for each stage of this pest as a primary stepfor developing a forecasting system that will help to define the most precisetime for different control programs. The insect was reared under threeconstant temperatures (17, 22 and 27°C each ± 1°C). The time required fordevelopment through egg, larva, pupa and pre-ovipostion increased at lowertemperatures. The lower thresholds of development (t0) were 8.39,11.46, 13.38 and 12.70°C for eggs, larvae, pupae and pre-oviposition period,respectively. The average accumulated heat units required for their developmentwere 61.07, 238.81, 113.68 and 38.17 degree-days. On the other hand, the lowerthreshold of development (t0) to complete a generation was 12.04°Cand the average accumulated heat units required for its development was 443.07degree-days
https://eajbsa.journals.ekb.eg/article_12655_5160c2c6416bcf8f24d71ae60dcffc33.pdf
Olive leaf moth
Palpita unionalis
accumulated heat units (degree-days)
temperature threshold (t0)
eng
Egyptian Society of Biological Sciences
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
2090-0813
2017-05-01
10
3
89
98
10.21608/eajbsa.2017.12658
12658
Original Article
Evaluation the Number , Duration Generation and Efficiency of Abamectin Against Some Pests Infesting Green Bean (Phaseolus vulgaris L.) Under Field Condition
Mona Ammar
1
Samia Abozeid
2
Tarek Abd-El Rahman
3
Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt
Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt
2- Central Agricultural Pesticides Laboratory, Agricultural Research Center, Dokki, Giza, Egypt.
Experiments were conducted in the experimental Research Station, Qaha, Qalubiya Governorate on the autumn of 2015 and 2016.The current study aimed to evaluation the number , duration generation and efficiency of abamectin against Bemisiatabaci (Genn.), Liriomyza. trifolii (Burg.), and Tetranychusurticae (Koch) infesting green bean (Phaseolus vulgaris) under field condition and residue determination of abamectin in green leaves and green pods . During the 2015 season, the whitefly, B.tabaci recorded two generations, but in the 2016 season, they were three generations. In ad dation, the leaf miner,L. trifoliiwas recorded three generations during two seasons 2015 and 2106. In casered spider, T.urticae gave three generations in the 2015 season but in the second season gave only two generations. Especially, efficiency of Abamectin the results revealed that the highest percentage of reduction of Whitefly, B.tabaci after 10 days (64.64 %) and the lowest reduction percentage (22.32%) after 21 day. L. trifolii, the highest percentage of reduction was after 21 days (28.64%) and the lowest percentage of reduction (18.17%) after 1 day. In case ofT.urticae,the obtained data indicated that the highest percentage of reduction of Spider mite after 3 days was (44.04%) while after 21 days was the lowest percentage of reduction (10.33%).Studying of the Abamectin residues on and in green leaves, unwashed green pods, washed green pods and boiling green pods recorded 7.98 ppm, 4.2ppm , 0.5 ppm and not detectable after two hours from spraying , washing processing cause dissipation 88.09 %loss from washed pods but in case boiling processing removed each Abamectin residues . The half-life measured in centuries Abamectin green beans leaves and unwashed green bean pods recorded 22.73 and 17.4 hours, respectively. The interval Preharvest (PHI) of Abamectin on the green beans pods for 17 day.
Recommendation :The paper recommended by abamectin spray on Phaseolus vulgaris against Bemisiatabaci (Genn.), Liriomyza trifolii (Burg.), with prevent green bean pods collected before 17 days from spraying.
https://eajbsa.journals.ekb.eg/article_12658_88c9301f976b36bcbf1934e906628040.pdf
green bean
(Phaseolus vulgaris)
Bemisiatabaci (Genn.)
Liriomyza trifolii (Burg.)
Tetranychus urticae (Koch)
Efficiency
Abamectin
Pesticide Residues
half-life values (RL50)
pre-harvest interval (PHI)