@article { author = {Maklad, Amna,}, title = {Evaluation Efficiency Sticky Traps on Attraction Bemisia tabaci (Gennadius) on Squash Plants under Greenhouse Conditions}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {13}, number = {1}, pages = {1-8}, year = {2020}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2020.68031}, abstract = {This study was carried out to evaluate efficiency sticky traps on attraction Bemisia tabaci (Gennadius) on squash plants Cucurbita pepo L. (three squash varieties i.e. Arkan, Sama 740 and Andro 174) under greenhouse conditions at  Perkash (Giza governorate)  during 2017, 2018 seasons. This study contains three experiments, The first experiment aimed to evaluate the efficiency color of the sticky trap on attraction B. tabaci through comparison between four colors (yellow, blue, red and white). This experiment was carried out on squash plants during the period (February - March). Results showed that the traps which have yellow color more efficiency than others which have (blue, red, and white) color, respectively. The second experiment aimed to evaluate the efficiency height of the yellow sticky trap on attraction B. tabaci through comparison between four heights (2m, 1.5m, 1m and 0.5m) above the ground. And this experiment was carried out on squash plants during the period (April - May). Results showed that the trap which has 2m height above the ground more efficiency than others which have (1.5m, 1m and 0.5m) heights, respectively. The third experiment aimed to evaluation efficiency orientation of the yellow sticky trap on attraction B. tabaci through comparison between four orientations (North, South, East and West). And this experiment was carried out on squash plants during the period (June - July). Results showed that had no clear effect of the trap orientation on attraction B. tabaci.}, keywords = {Sticky traps,Bemisia tabaci,Cucurbita pepo L,greenhouse}, url = {https://eajbsa.journals.ekb.eg/article_68031.html}, eprint = {https://eajbsa.journals.ekb.eg/article_68031_b446afb078762a8c1de408fff185dec1.pdf} } @article { author = {Yassin, Samia,}, title = {Biological Studies and Estimation Life Table Parameters of Chrysanthemum Aphid, Macrosiphoniella sanborni under Different Temperature Conditions}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {13}, number = {1}, pages = {9-16}, year = {2020}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2020.68032}, abstract = {This study was carried out to study the biology and life table parameters of Chrysanthemum aphid, Macrosiphoniella sanborni under laboratory conditions throughout three different temperatures degrees (winter, spring, and summer) during the 2018 year. Data obtained showed that the spring season more suitable for M. sanborni living (biology) more than winter and summer seasons, respectively. This showed clearly from the life table's parameters, which showed that the nymphal stages of M. sanborni in spring season were less than in winter and summer, respectively. Also, the life cycle, mean generation time, life span and longevity duration in spring season were less than in winter and summer seasons respectively. Lastly, the important parameter in the life table, intrinsic rate of increase (rm) in spring season was more than in winter and summer seasons, respectively.}, keywords = {life table parameters,Macrosiphoniella sanborni,temperatures}, url = {https://eajbsa.journals.ekb.eg/article_68032.html}, eprint = {https://eajbsa.journals.ekb.eg/article_68032_90b155b89bee8c25a443eaeb622cc436.pdf} } @article { author = {Yassin, Samia, and S, Emam}, title = {Effect of Infested Rose Plants by Icerya aegyptiaca on the Physiological and Natural Characteristics of Rose Oil under Glasshouse Conditions}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {13}, number = {1}, pages = {17-23}, year = {2020}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2020.68033}, abstract = {This study was carried out to study the effect of infested rose plants by Icerya aegyptiaca (Douglas)(Margarodidae : Homoptera).(in different stages of infestation) on the physiological and natural characteristics of rose oil at two locations (governorates), International Garden (Cairo Governorate) and El-Orman Garden, (Giza Governorate) under glasshouse conditions during successive seasons 2018.              Data obtained showed that the most important components of rose oil such as (geraniol, citronellol, nerol, stearpoten, phenyl ethanol and bioflavonoids), acids such as Citric acid and Malic acid and vitamins such as vitamin A, B, C and vitamin D were changed its concentrations as result of infestation by I. aegyptiaca. And high infestation by I. aegyptiaca affected concentrations of these components more than medium and low infestation, respectively compared to control. In addition, data obtained showed that the most natural characteristics of rose oil such as volatility, light rotation and refraction value were changed as a result of infestation by I. aegyptiaca but other natural characteristics like freezing point did not change after infestation by I. aegyptiaca. And high infestation by I. aegyptiaca affected the natural characteristics of rose oil more than medium and low infestation, respectively compared to control.}, keywords = {Icerya aegyptiaca,physiological and natural characteristics,rose oil,Giza Governorate}, url = {https://eajbsa.journals.ekb.eg/article_68033.html}, eprint = {https://eajbsa.journals.ekb.eg/article_68033_fe66e9ef764200adacc354461a930d76.pdf} } @article { author = {Younis, Mohamed and Fergani, Yasmin}, title = {Is It Possible to Use Entomopathogenic Nematodes inside Honey Bee, (Apis mellifera L.) Colonies?}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {13}, number = {1}, pages = {25-32}, year = {2020}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2020.68034}, abstract = {       Some hypotheses supported the concept that entomopathogenic nematodes are safe bio-agents, causing low infection probability to honey bee workers and brood under colonies conditions and have no effects on the colony strength and might be used as a bio-control agent against the greater wax moth Galleria mellonella.However, the obtained results showed that the mortality percentages in bee larvae after treatment with EPNs ranged from 49.2% to 77.6 % in the case ofSteinernema sp. isolates and from 39.8% to 55.2 % in Heterorhabditis sp. isolates under the colony conditions, the nematode infection inside the entire colony was restricted to the treated areas and didn’t widespread through the other frames. Direct treatments inside the laboratory also confirmed the susptibility of bee workers and larvae to nematode infection of all tested isolates with differences in successful recycling. The present work strongly supported that both Steinernematidae and Heterorhabditidae families are not recommended to be used in bee colonies as bio-control agents. Further research is needed to cover the possibilities of using them for infected wax combs during storage before reusing it in the bee colonies.}, keywords = {Honey bee,Apis mellifera,Entomopathogenic nematodes,Steinernema riobrave,Heterorhabditis sp}, url = {https://eajbsa.journals.ekb.eg/article_68034.html}, eprint = {https://eajbsa.journals.ekb.eg/article_68034_8dffa0693620034b41ca46865a7569a3.pdf} } @article { author = {Saad, Hayam,}, title = {Effect of Treated Squash Plants by Cytokinin Hormone (CKs) on the Infestation by Bemisia tabaci and Tetranychus urticae}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {13}, number = {1}, pages = {33-40}, year = {2020}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2020.68343}, abstract = {            This study was carried out to study effect of treated squash plants Cucurbita pepo L. (var. Andro 174) by two concentrations of Cytokinin Hormone CKs (25 ppm and 45 ppm) on the infestation by Bemisia tabaci(Hemiptera: Aleyrodidae)and Tetranychus urticae Koch (Fam: Tetranychidae) at  Giza Governorate during 2017, 2018 seasons under glasshouse conditions.             Results obtained showed that squash plants treated with a small concentration of CKs (25ppm) were lower infestation by both B. tabaciand T. urticae compared to control (plants which did not treat with any hormone). While squash plants treated with a high concentration of CKs (45ppm) were higher infestation by both the two pests compared to control.             Also, results obtained showed that treated squash plants with a small concentration of CKs improved morphological characteristics and internal components of these plants compared to control, while when treated squash plants with a high concentration of the same hormone had badly effect on the morphological characteristics and internal components of these plants compared to control}, keywords = {Cucurbita pepo L,Cytokinin Hormone CKs,Bemisia tabaci,Tetranychus urticae}, url = {https://eajbsa.journals.ekb.eg/article_68343.html}, eprint = {https://eajbsa.journals.ekb.eg/article_68343_00eb4ca649856b80b8157426122b3575.pdf} } @article { author = {Farag, Rasha, .A. Farag}, title = {Sugars Profile of Citrus (Citrus spp.) Honey for Quality Determination}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {13}, number = {1}, pages = {41-46}, year = {2020}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2020.68963}, abstract = {Honey is considered a broad nutritional substance with nutritional, vital and therapeutic value due to its distinctive ingredients. Therefore, the determination of its purity is of utmost importance. The aim of this study is to investigate the effect of different feed types on sugars profiles of citrus honey. In this work, three types of foods presented to honey bee colonies were studied: invert sugar, sucrose solution and natural nectar. The honey produced from this feeding was characterized by equal levels of glucose and fructose in the case of invert sugar and high level of sucrose in the case of feeding with a solution of sucrose and the ideal composition for nectar of citrus trees that were represented in 42.1%, 35.5%, 0.9% and 1.6% for fructose, glucose, sucrose, and maltose, respectively. This provides a clear imprint of natural honey sugars (sugar profile), and opens the way for further research in this area to uncover ways of adulteration with honey}, keywords = {Honey,Sugars Profile,sucrose,glucose and fructose}, url = {https://eajbsa.journals.ekb.eg/article_68963.html}, eprint = {https://eajbsa.journals.ekb.eg/article_68963_806ebb9dd1e6a131893b1c53a4d928b6.pdf} } @article { author = {Dar, Rehab, and Lotfy, Dalia, and Moustafa, Hemat,}, title = {Field Application of Bio-Insecticides On Spiny Bollworm, Earias insulana (Bosid.) On Cotton by Using Recent Low Volume Ground Spraying Equipment}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {13}, number = {1}, pages = {47-57}, year = {2020}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2020.69092}, abstract = {Field experiments were carried out of about 11 kirats planted with (Giza 86) cotton variety during seasons 2018 and 2019 on 15th  July and 1st, 15th August in a field located at Qaha Research Station, Plant Protection  Research Institute, Qalyoupia governorate. The selected area was split into 10 plots and the control plot. Entomopathogenic fungi and a commercial formulation of  Bacillus thuringiensis (Berliner)  were sprayed by using  Hand-held Hydraulic sprayer (Matabi) (56 L./fed.) and Economy Micron ULVA (15 L./Fed.) on cotton field highly infested with cotton Spiny bollworm  Earias insulana  larvae. All tested Bio-Insecticides revealed a significant negative influence on Earias insulana  larvae. The most effective on reduction percentage of bolls infestation is Metarhizium anisopliae, Beauveria bassiana either isolates or (W. P.) with Economy Micron ULVA (15 L./Fed.)  followed by Bacillus thuringiensis (W.P.) with Hand-held Hydraulic sprayer (Matabi) (56 L./Fed.). It could be recommended to use these Bio-Insecticides with ULV spraying equipment with not less than (15L/Fed.). A satisfactory coverage was obtained on cotton plants. The spectrum of droplets ranging between 130-166 mm (VMD). With a sufficient number ranging from  24-170 N/cm². The rate of performance of  Hand-held Hydraulic sprayer (Matabi) (56 L./Fed.) was 3.5 Fed./day. It was the best equipment, but the lowest rate of performance was  Economy Micron ULVA (15 L./Fed.) since it could spray only 3 Fed./day. The results indicated that there was no significant difference between the isolate form of fungi and wettable powder in reduction percentages of bolls infestation. Data showed that bio-insecticides may be recommended in integrated pest management because of their safety on animals, man  and environment   Also, Low Volume spraying reducing the time lost in the process filling the machines with the spray solution and saving the lost spray on the ground.}, keywords = {Cotton,Earias insulana,Bacillus thuringiensis,Metarhizium anisopliae,Beauveria bassiana,Low Volume ground sprayers}, url = {https://eajbsa.journals.ekb.eg/article_69092.html}, eprint = {https://eajbsa.journals.ekb.eg/article_69092_61c00cda4b2cf9641f82bb7c8bcbbe3e.pdf} } @article { author = {Amer, Abdelfattah}, title = {Revision of family Noctuidae of Egypt (3) Subfamilies “Acontiinae, Agaristinae, Amphipyrinae and Hadeninae” (Lepidoptera, Noctuidae)}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {13}, number = {1}, pages = {59-88}, year = {2020}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2020.72206}, abstract = {In the last 2 papers for the revision of Noctuidae in Egypt, we revised 7 subfamilies (Xyleninae, Acronictinae, Heliothinae, Metoponiinae, Noctuinae, Oncocnemidinae, and Plusiinae) from the 16 subfamilies belonging to family Noctuidae. In this study, we are exposed to revise four subfamilies which are Acontiinae, Agaristinae, Amphipyrinae, and Hadeninae. These subfamilies contain 22 genera contain 55 species. Subfamily Hadeninae is the most representative subfamily with 29 species under 12 genera, while subfamilies Agaristinae and Amphipyrinae are the smallest subfamilies containing three species under two genera. Subfamily Acontiinae in the 2nd subfamily with 20 species under 6 genera. }, keywords = {Lepidoptera,Noctuidae,Acontiinae,Agaristinae,Amphipyrinae,Hadeninae,Egypt}, url = {https://eajbsa.journals.ekb.eg/article_72206.html}, eprint = {https://eajbsa.journals.ekb.eg/article_72206_638e79004a9c543804a56d9c5bba3586.pdf} } @article { author = {Elhalawany, Ashraf and Ahmad, Naglaa and Amer, Ahmad,}, title = {Biological Aspects of Date Palm Dust Mite, Oligonychus afrasiaticus (McGregor) (Acari: Tetranychidae) on Fronds of Three Date Palm Cultivars}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {13}, number = {1}, pages = {89-98}, year = {2020}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2020.74534}, abstract = {For several years the palm dust mite, Oligonychus afrasiaticus (McGregor) has been an economically important pest of date palm. Biology and life table parameters of the date dust mite, O. afrasiaticus were studied on fronds of three date palm cultivars: Bartamoda (dry), Sewi (semi dry) and Zaghlol (soft) at laboratory conditions of 30 and 35°C & 60 ±5% R.H. and 16L. The results revealed that, the longest and shortest oviposition period and total longevity of O. afrasiaticus females were recorded at 30°C (22.5 & 26.90 days) on Sewi and 35°C (6.9 & 10.0 days) on Zaghlol variety, respectively. The fecundity increased as temperature decreased from 30.5, 37.45 and 25.5 eggs at 30°C to 27.8, 29.15 and 15.94 eggs at 35°C on Bartamoda, Sewi and Zaghlol varieties, respectively. The lowest and highest values of the intrinsic rate of increase (rm) were 0.107 and 0.229 individuals/female/day that obtained at 30 and 35°C on Zaghlol and Sewi varieties, respectively. The mean generation time (T) significantly decreased from 23.6, 22.4 and 22.76 days to 13.08, 11.90 and 12.26 days with increasing temperature from 30°C to 35°C, on Bartamoda, Sewi and Zaghlol varieties, respectively. The results of this study indicate that O. afrasiaticus could increase rapidly when Sewi and Bartamoda fronds serve as a food source more than Zaghlol date palm variety.}, keywords = {Dust mite,life table,fecundity,Sewi,Zaghlol,Bartamoda}, url = {https://eajbsa.journals.ekb.eg/article_74534.html}, eprint = {https://eajbsa.journals.ekb.eg/article_74534_ab9e2fa089ff91d807176dbf78f58eaf.pdf} } @article { author = {Elmorsy, Reda and Bream, Ahmed and Abdel-Samad, Mohammad}, title = {Antibacterial Activities of Chrysomya albiceps Maggots’ Extracts (Diptera: Calliphoridae)}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {13}, number = {1}, pages = {99-104}, year = {2020}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2020.75905}, abstract = {Maggot therapy's success is partly due to the ingestion and killing of living microorganisms. The aim of this study was to investigate the antibacterial activities of maggots’ crude extracts (DMSO and PBS extracts) and excretion/secretion of Chrysomya albiceps (Diptera: Calliphoridae). The excretion/secretion (E/S) and crude extracts were collected from third larval instars of C. albiceps. The extracts were tested against Escherichia coli and Pseudomonous aeruginosa, as Gram-negative bacteria and Staphylococcus aureus and Bacillus subtilis as Gram-positive bacteria. Antimicrobial activity was done by calculating the reduction percentage of the colony's growth. The E/S was appeared the highest antibacterial activities against Gram-positive and Gram-negative bacteria, while the PBS extract has appeared the lower antibacterial activities. Generally, the E/S of C. albiceps maggot was found to be more effective as antibacterial agents than crude extracts (DMSO and PBS extracts).}, keywords = {Antibacterial activity,Excretion/Secretion,crude extracts maggot,Chrysomya albiceps}, url = {https://eajbsa.journals.ekb.eg/article_75905.html}, eprint = {https://eajbsa.journals.ekb.eg/article_75905_49404880a71bc888b18416192874e7b4.pdf} } @article { author = {Bhat, Aashaq and Sharma, Lavi and Chaubey, Ashok}, title = {Characterisation of Steinernema surkhetense and Its Symbiont Xenrorhabdus stockiae and A Note on Its Geographical Distribution}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {13}, number = {1}, pages = {105-122}, year = {2020}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2020.75906}, abstract = {Two cultured populations of Steinernema surkhetense are described from India. Morphologically and morphometrically this material agrees with other species of the Carpocapsae-group (presence of short juveniles), especially with S. surkhetense. The morphology was somewhat similar to the original description with the distinguishing feature being the presence of anal swelling in second-generation female specimens but absent in the original specimens. The morphometric measurements were in close proximity to those in the original specimens and the PCA analysis of important morphometric characters demonstrated some variability within the test populations. Molecular studies based on 28S and ITS rDNA confirmed the Indian material is well conspecific Nepali populations of S. surkhetense, however, with Nepali populations, two base pair differences were observed at 376 and 713 positions only in ITS rDNA gene. We performed a molecular and biochemical characterization of the bacterial symbiont of S. surkhetense and the symbiont is closely related to Xenorhabdus stockiae, which is widespread among South Asian nematodes from the ‘‘carpocapsae’’ group. Finally, we mapped its geographical distribution using a meta-analysis of the ITS GenBank records. The distribution of S. surkhetense based on a meta-analysis of the GenBank records showed its presence in the three Asian countries—India, China, and Nepal, with maximum records from the Indian subcontinent. This species is indigenous to the Indian subcontinent, thus could be tested and later used in the biocontrol of insect pests in India}, keywords = {Carpocapsae,Steinernema surkhetense,PCA,Xenorhabdus stockiae,Meta-Analysis,GenBank,Biocontrol}, url = {https://eajbsa.journals.ekb.eg/article_75906.html}, eprint = {https://eajbsa.journals.ekb.eg/article_75906_fd6280ca82b484c68f8ac0feacd09ac4.pdf} } @article { author = {Sayed, Atef and Behle, Robert and El-Masry, Ghada}, title = {Enhancing the Efficacy of Certain Spray-Dried Baculovirus (AgipMNPV) against Cutworm, Agrotis ipsilon Hufnagel (Lepidoptera: Noctuidae)}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {13}, number = {1}, pages = {123-133}, year = {2020}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2020.76401}, abstract = {The insecticidal efficacy of various baculovirus formulations against the cutworm Agrotis ipsilon was determined. The treatments consisted of molasses from suagrcane mixing with each of wheat germ, biochar, talc, chitosan, silica gel, pyrolysis bio-oilaqueous phase, pyrolysis bio-oilorganic phase, calcium carbonate, cornflour, calcium cassinate, aluminium potasium sulphate, Diatomaceous earth, dextrin, lignin PC 1307, soy screen, blankphor, skim milk powder, potassium cassinate, magnsium chloride, date molasses and pregelatinized starch. All applied in spray-dried at 2.2 x 109  occlusion body(OB) mL-1. The bioassay of each spray-dried formulation using the droplet feeding method by the blue solution containing 2% sugar and 0.1% blue dye. The resulting suspensions should all contain 0.377 x 106 OB mL-1, represent the LD70 for the unformulated virus. Exposure newly hatched larvae of   cutwormsand transfer to individual diet cups for each treatment and incubated at 28oC in dark incubator for 7 days. The obtained results revealed that satisfactory control of the pest of 100% larval mortality compared to untreated control was achieved with the formulations containing molasses mixing with talc, silica gel, calcium carbonate, cornflour, calcium cassinate, diatomaceous earch, soy screen, and dextrin. However, the formulations containing chitosan, pyrolysis bio-oilaqueous phase and pyrolysis bio-oilorganic phase gave the lowest mortalities as 12.2, 11.1 and 6.7%, respectively. These findings is an attempt to provides an interesting alternative developed biopesticide formulations made with natural ingredients that could improve the efficacy and persistence of virus-based biopesticides.}, keywords = {Spray-dried formulations,Baculovirus (AgipMNPV),Agrotis ipsilon}, url = {https://eajbsa.journals.ekb.eg/article_76401.html}, eprint = {https://eajbsa.journals.ekb.eg/article_76401_6a05161ac8a01fa1b3590c76034a7109.pdf} } @article { author = {Amer, Reda and Dar, Rehab, and Salem, M. and Sheba, Omnia,}, title = {Co-Operation Impact Between Gamma Radiation and Spraying Droplets Distribution for Bioinsecticides Controlling Boll Pests on Cotton Plants in Egypt}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {13}, number = {1}, pages = {135-153}, year = {2020}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2020.76519}, abstract = {Field experiments were carried out of about 8 karats planted with (Giza 86) cotton variety during seasons 2018 and 2019 on 21st July and 5th, 20th August in a field located at Qaha Research Station, Plant Protection Research Institute, Qalyoubia governorate. The selected area was split into 7 plots and the control plot.  Two spraying machines were used Pneumatic motor sprayer (Cifarilli) (20 L./Fed.) and Hand-held Hydraulic sprayer (Matabi) (56 L./fed.) for application enhancement. Seven compounds related to different insecticide groups were used; one of them (B. thuringiensis)was exposed to gamma radiation doses of 160, 320 & 640 Gy (gray) =for potentiating purpose. The treatments were Bacillus thuringiensis (Kurstaki), B. thuringiensis +160 Gy, B. thuringiensis +320 Gy, B. thuringiensis +640 Gy, azadirachtin, B. thuringiensis +azadirachtin and diflubenzuron. The treatments mentioned were evaluated against three pests of cotton bolls that were pink bollworm, Pectinophora gossypiella (Saund); spiny bollworm, Earias insulana (Boisd.) and Cottonseed bug, Oxycarenus hyalinipennis (Costa) population and infestation reduction percentages.   B. thuringiensis +640 Gy and diflubenzuron were considered the best treatments that caused reduction percentages in population and infestations against three pests used, followed by B. thuringiensis +320 Gy, B. thuringiensis +160 Gy and B. thuringiensis + azadirachtin, azadirachtin and then B. thuringiensis. In addition, the compounds used to enhance the most cotton crop parameters acts in seed numbers, lint and seed weights during the two cotton seasons 2018 & 2019. So, gamma radiation (160, 320 & 640 Gy) could potentiate B. thuringiensis to become the most effective compound on mentioned three pests and cotton crop parameters compared with the same compounds without exposing to gamma radiation; also, knapsack motor sprayer contribute to success the pest control comparing with Hand-held Hydraulic sprayer (Matabi) (56 L./fed.) that was the least efficient according to homogeneity of droplet spectrum. It could be recommended to use these Bio-Insecticides with Low Volume spraying equipment with not less than (20 L/Fed.). A satisfactory coverage was obtained on cotton plants. The spectrum of droplets ranging between 122-185 mm (VMD). With a sufficient number ranging from 33-253 N/cm². The rate of performance of Pneumatic motor sprayer (Cifarilli) (20 L./Fed.) was 12 Fed./day. It was the best equipment, but the lowest rate of performance was Hand-held Hydraulic sprayer (Matabi) (56 L./fed.) since it could spray only 3.45 Fed./day. Data showed that bio-insecticides may be recommended in integrated pest management because of their safety on animals, man and environment. Also, Low Volume spraying reducing the time lost in the process filling the machines with the spray solution and saving the lost spray on the ground.}, keywords = {gamma radiation,cotton bolls,Bacillus thuringiensis,Diflubenzuron,Azadirachtin,Pectinophora gossypiella,Earias insulana,Oxycarenus hyalinipennis,Low VOLUME ground spraying equipment,cotton crop}, url = {https://eajbsa.journals.ekb.eg/article_76519.html}, eprint = {https://eajbsa.journals.ekb.eg/article_76519_8b0919da14d58162a312ca365dbc2729.pdf} } @article { author = {Deef, Karim and Helmy, Hanan and Barakat, Emad and Lotfy, Nadia and El Gohary, El Gohary}, title = {Synthesis and Characterization of a Novel PAA Carrier for Apitoxin of Apis mellifera L.}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {13}, number = {1}, pages = {155-164}, year = {2020}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2020.76598}, abstract = {The current study aimed to characterize a novel bee venom –loaded polyacrylic acid carrier intended for cancer therapy. Honey bee venom was collected by the electric shock method. Poly acrylic acid and venom-loaded polyacrylic acid were prepared using potassium peroxodisulfate as an initiator. Nanoformulation was achieved by emulsion-solvent diffusion. Characterization was achieved by FT-IR, 1H-NMR, TEM, DFED, and UV spectrophotometry. TEM showed that the resultant spherical nanoparticles were either dispersed or in a nodular form and their diameter was 17-210 nm. DFED showed that the resultant nanoparticles did not show crystalline edges. FTIR and 1H-NMR concluded that there was no marked interaction between drug and selected polymer except in the physical encapsulation process. UV spectrophotometry indicated a 95% uniformity of drug content in the resultant nanoparticles. The study concluded that the PAA carrier may be a promising suitable carrier for bee venom.}, keywords = {polyacrylic acid,Bee venom,Nanoformulation,Characterization}, url = {https://eajbsa.journals.ekb.eg/article_76598.html}, eprint = {https://eajbsa.journals.ekb.eg/article_76598_87b2db5fcbff1d30d9c95c520ef92d10.pdf} } @article { author = {Imam, Iman and Nawar, Mohamed}, title = {Biological Control Using Some Predators for Tomato Pests Under Greenhouse Conditions}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {13}, number = {1}, pages = {165-171}, year = {2020}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2020.77334}, abstract = {Bemisia tabaci Genn. (Hemiptera: Aleyrodidae) and Tetranychus urticae Koch. (Acari: Tetranychidae) are major pests in tomato greenhouses. The combination and different release regimes of 2 predators; Chrysoperla carnea (Steph.), and Phytoseiulus persimilis Athias- Henriot in commercial tomato greenhouses during the winter plantation of the two seasons, 2018 and 2019. five release rates were evaluated; 1 individuals of C. carnea + 2 individuals of P. persimilis /m2 biological control greenhouse 1 (1C / 2P), 2 individuals of  C. carnea + 4 individuals of P. persimilis /m2 (2C/4P) , 4 individuals of C. carnea + 4 individuals of P. persimilis /m2 ( 4C/8P),1 Insect predator (C. carnea) only and 1 mite predator (P. persimilis). The greatest suppression of the pest population was recorded in 4C/8P (the combination of the 2 predators).         The population of B. tabaci reached 3.3, 1, 1, 4.5 and 0.5 individuals/ plant in 2018 and 5, 2, 1, 3.5 and 5 individuals/ plant in 2019 in 1C/2P, 2C/4P, 4C/8P, C. carnea and P. persimilis, respectively, in the 11th week. Correspondent population of T. urticae reached 2.2, 2, 1, 2.4 and 4 individuals/ plant in 2018 and 1, 2, 0.4, 4,6 and 4 individuals/ plant in 2019. There was a significant difference between 1C/2P, 2C/4P, 4C/8P, C. carnea and P. persimilis for the whitefly and mite populations.          Generally, the pest populations in the 4C/8P decreased treatments compared with the P. persimilis in the two seasons. Use of the combination of the 2 predators (4C/8P) is recommended as a pest management practice at the plantation of tomato in the greenhouses.}, keywords = {Bemisia tabaci. Tetranychus urticae,Phytoseiulus persimilis,Chrysoperla carnea,Predators,Tomato,Greenhouses}, url = {https://eajbsa.journals.ekb.eg/article_77334.html}, eprint = {https://eajbsa.journals.ekb.eg/article_77334_c35265279a35219578ca1d7c54aa89fb.pdf} } @article { author = {Khandagle, Abhay and Morey, Rashmi}, title = {Silver Nanoparticles of Eucalyptis grandis as A Possible Insecticide Against Mosquito Vectors.}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {13}, number = {1}, pages = {173-176}, year = {2020}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2020.77335}, abstract = {Mosquito-borne diseases are amongst the most serious threat to humans, especially in tropical countries. Mosquito control has never been easy and has always posed several difficulties like hazards of chemicals used, resistance raised in mosquito populations or cost-effectiveness. Current control methods mainly depend on the use of conventional chemicals, Physical methods, biological methods, and transgenic mosquitoes. Currently, none of these single strategies is fully successful. Unique eco-friendly approaches to achieve mosquito vector control are immediately required. The plant-mediated creation of nanoparticles is helpful over chemical and physical methods since it is cheap, single-step, and easy to use. Recently the number of plant-based compounds have been proposed for efficient synthesis of metal nanoparticles effective against mosquitoes. The present study was an attempt to study the mosquitocidal potential of the bionanomaterial of the bark extract of Eucalyptis grandis with silver. The larvicidal activity after 24 hours was found to be LC 50 = 42 and 35 ppm for the two species of the mosquitoes studied herein.}, keywords = {silver nanoparticles,Mosquito-borne diseases,Eucalyptis grandis}, url = {https://eajbsa.journals.ekb.eg/article_77335.html}, eprint = {https://eajbsa.journals.ekb.eg/article_77335_b0d72c1ff892fbd80c09f5cec1ca01cf.pdf} } @article { author = {Abied, Mohammed}, title = {Morphological and Molecular Studies on Certain Species of Family Anthicidae (Order: Coleoptera) In Egypt}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {13}, number = {1}, pages = {177-184}, year = {2020}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2020.78269}, abstract = {The Family Anthicidae are of the heteromerous group of beetles recognized by their superficial shape, which resembles ants and have an appearance of small carabids. Six species are compared within genera, Anthicus, Cyclodinus, Striticomus, and Omondus (Family: Anthicdae), the male genital structure used to represent morphological character and (RFLP) molecular data. The Subgenera, Cyclodinus, Striticomus, and Omondus were promoted to genera. The results revealed that the molecular data are emphasized the elevations of Cyclodinus, Striticomus, and Omondus, these subgenera to status genera. Whereas species not changed in its scientific name.}, keywords = {Family Anthicidae,Egypt}, url = {https://eajbsa.journals.ekb.eg/article_78269.html}, eprint = {https://eajbsa.journals.ekb.eg/article_78269_d4730fc34d7025ab9a7e05016bb7ab34.pdf} } @article { author = {Ali, Asmaa and Ali, Mahmoud}, title = {Toxicity of Some Extracts of Common Plants Towards Three Species of Pheidole Ants Under Laboratory Conditions}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {13}, number = {1}, pages = {185-194}, year = {2020}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2020.79872}, abstract = {The toxicity of some common plant extracts towards workers of three species of Pheidole ants was evaluated under laboratory conditions. Methanolic extracts of nine plants indigenous in Egypt, were examined for their potential use as alternatives to synthetic chemical pesticides. Extracts of the tubers of Allium sativum L., the seeds of Anethum graveolens L., Coriandrum sativum L., Trigonella foenum-graecum L and Nigella sativa L., flowers of Calndula officinalis L., and leaves of Mentha viridis L., Rosamarinus officinalis L and Eucalyptus citriodora Hook were tested in this way. Bioassays were performed on mature workers of three species of Pheidole ants; P. jordanica (Saulcy), P. laticeps (Mayr) and P. sinatica (Mayr) (Hymenoptera: Formicidae) also common in Egypt. All crude methanolic plant extracts exerted toxic effects on workers of the three Pheidole species. The crude methanolic extract of A. sativum was the most effective, as indicated by the highest percentage mortality of ant workers, followed by extracts of T. foenum-graecum, while crude extract of E. citriodora, showed the least activity. The results indicate the potential use of some of these plant extracts as a source of safe alternatives to insecticides. }, keywords = {Pheidole ants,plant extract toxicity,LC50,LC90}, url = {https://eajbsa.journals.ekb.eg/article_79872.html}, eprint = {https://eajbsa.journals.ekb.eg/article_79872_fc1e876bde8ba975132ef1177a18940e.pdf} }