@article { author = {Moustafa, Mona}, title = {Scale insects (Coccoidae: Hemiptera) infested citrus trees and thier natural enemies, with a key of these pests in Egypt}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {5}, number = {1}, pages = {1-23}, year = {2012}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2012.14901}, abstract = {Scale insects (Coccoidae: Hemiptera) are the most important pests infestedcitrus trees in Egypt. The present work dealt with the scale insects infested citrus treesand thier natural enemies as well as a key of these pests in Egypt . The resultsindicated that seven species of scale insects were recorded infested citrus trees inEgypt. Also taxonomic key of the seven species of scale insects was included. Duringthe present work the results indicated that the populations of red scale, Aonidiellaaurantii (Maskell) has two peaks one in April and the second one in October. In thiswork two parasitoids recorded associated with red scale. Theses are Aphytislingnanensis Compere and Habrolepis aspidioti Compere and Annecke.It is recordedhere two peaks for each parasitoid in April and October for A. lingnanensis and inJuly and November for H. aspidioti in Beni- Suef. Also this work indicated that citruswax scale, Ceroplastes floridensis Comstock has two peaks the first in May and thesecond in October. In the present work two parasitoids recorded associated withcitrus wax scale. These are Metaphycus helvolus (Compere) and Microterus flavus(Howard). It is recorded here two peaks for each parasitoid in May and October forin Gharbiya .The present work observed , black scale Chrysomphalus aonidum (L.)has two peaks the first in May and the second in November. In the present work twoparasitoids recorded associted with the black scale. These are Aphytis chrysomphali(Mercet) and Encarsia citrina (Craw). It is recorded here two peaks for eachparasitoid in May and November in Qalyubyia. The present work recordedseychellarum mealybug, Icerya seychellarum (Westwood) infested citurs trees inDemmyat and has two annual peaks one in June and the other in November. Also hereRodalia cardinalis Mulsant associated with seychellarum mealybug, I. seychellarum.During the presnt work the results indicated that he purple scale, Lepidosaphes beckii(Newman) has two peaks on citrus trees in Ismaillia . Also one parasitoid, Aphytislepidosaphes Compere and one predator Chilocorus bipustulatus L. were recorded.During the present work the results indicated that parlatoria black scale, Parlatoriaziziphi (Lucas) has two peaks on citrus trees in Cairo. Two parasitoids, A.lingnanensis and E. citrina were recorded. During the presnt work the resultsindicated that citrus mealybug, Planococcus citri (Risso) has two peaks on citrus treesin Behira . Two parasitoids, Anagyrus pseudococci (Girault) and Leptomastixdactylopii Howard .}, keywords = {scale insects,citrus trees,natural enemies,Egypt}, url = {https://eajbsa.journals.ekb.eg/article_14901.html}, eprint = {https://eajbsa.journals.ekb.eg/article_14901_34ab855c44fc65452847dd18488c5450.pdf} } @article { author = {Abd-Rabou, Shaaban and Ahmed, Noha and Badary, Hoda}, title = {Scale insects (Hemiptera: Coccoidea) infesting apple, apricot, pear trees and their abundant parasitoids in Egypt}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {5}, number = {1}, pages = {25-29}, year = {2012}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2012.14904}, abstract = {Scale insects are the major pests infesting apple, apricot and pear trees in Egypt.The aim of the present work is to study a survey of scale insects infesting apple,apricot, pear trees and their abundant parasitoids in Egypt. A survey of scale insectsinfested apple, apricot, pear trees and their abundant parasitoids were carried out allover Egypt during 2009-2011. The results indicated that apple, apricot and pear treeswere infested by 19, 10 and 10 scale insect species and associated with 12,6 and 8parasitoid species, respectively.}, keywords = {scale insects,Apple,Apricot,pear trees,Egypt}, url = {https://eajbsa.journals.ekb.eg/article_14904.html}, eprint = {https://eajbsa.journals.ekb.eg/article_14904_0f9a591868cf6f5fd473950579b43be8.pdf} } @article { author = {Seufi, AlaaEddeen}, title = {Molecular Characterization, Full Length Isolation and Phylogenetic Analysis of C-type Lectin Gene from Bacterial-challenged Cotton Leafworm, Spodoptera littoralis}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {5}, number = {1}, pages = {31-44}, year = {2012}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2012.14905}, abstract = {Experiments were designed to investigate the molecular immune response ofSpodoptera littoralis larvae against bacterial infection. In addition, sequence andphylogenetic analyses of the involved gene were studied. Using differential displaytechnique, a partial insect lectin gene (SpliLec) was isolated from bacterial-challengedS. littoralis haemolymph. Five differentially displayed bands were sequenced.Sequence results revealed that a fragment of 640 bp was amplified within the openreading frame (orf) of a lectin gene. This fragment contained the complete 3` end witha poly(A) tail, but it lacks start codon, AUG at its 5` end. Using RACE PCR reaction,5` end was extended and a final reaction was performed to obtain the full length of theSpliLec. Sequence analyses of the data revealed that SpliLec consists of a single orfencoding a deduced polypeptide consisting of a 18-residue signal peptide and a 291-residue mature peptide. SpliLec sequence contained two CRDs: short form CRD1 andlong form CRD2 stabilized by two and three highly conserved disulfide bonds,respectively. SpliLec shares homology with some dipteran lectins suggesting possiblecommon ancestor. These results suggested an important role of the SpliLec gene incell adhesion and non-self recognition. It may cooperate with other AMPs inclearance of invaders of Spodoptera littoralis.}, keywords = {Immune system,Spodoptera,C-type lectin,CRD,PAMP}, url = {https://eajbsa.journals.ekb.eg/article_14905.html}, eprint = {https://eajbsa.journals.ekb.eg/article_14905_5bcc417a33a56d7bb3a33b3baab21952.pdf} } @article { author = {Albutra, Queenilyn and Torres, Mark and Demayo, Cesar}, title = {Shapes of mandibles of white stemborer Scirpophaga innotata (Walker, 1863)larvae associated with different rice varieties}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {5}, number = {1}, pages = {45-58}, year = {2012}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2012.14906}, abstract = {Rice stem borers are considered the most serious insect pest of rice in Asia. Thewhite stem borer Scirpophaga innotata (Walker, 1863) is the most prevalent amongthe different species that exist in the Philippines. This pest uses its strong mandiblesto penetrate and feed on its plant host. Rice varieties of various level of resistancewere deployed in different geographical locations in the Philippines but infestationswere still observed and have contributed to economic losses to the farmers. Althoughdifferences in the resistance level among rice varieties makes an important factor inthe control of the pest, no rice variety has been reported to be completely resistantagainst rice stem borer attacks. Several reports have indicated however that the levelof damage caused by rice stem borer attacks differs. Thus it was the major objectiveof this study to determine if populations of white stem borer showed intraspecificvariation between different geographical locations and between rice varieties. Sincethe mandible of the larvae is used in penetrating the plant, this morphological part ofthe insect larvae was investigated. Outline-based geometric morphometric analysiswas used to test the hypothesis that the mandible shape of white stem borer differ withrespect to different rice varieties and geographical location. Results of the principalcomponent analysis showed variation in the shape of the mandible among populationsof white stem borer taken from different rice varieties but not in the same varietycollected from different geographical locations. Results of this study further confirmthe general argument that host plant resistance play an important role in the evolutionof pests.}, keywords = {Scirpophaga innotata,Outline based geometric morphometric analysis,Principal component analysis,Kruskal-Wallis test}, url = {https://eajbsa.journals.ekb.eg/article_14906.html}, eprint = {https://eajbsa.journals.ekb.eg/article_14906_c068e411ba1e788682eac9b2f3782ed2.pdf} } @article { author = {Coronel, Kimverly and Torres, Mark and Demayo, Cesar}, title = {Describing Compartmentalization in the Fore-wing of Populations of the Rice Grasshoppers, Oxya sp. (Acrididae: Orthoptera)}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {5}, number = {1}, pages = {59-66}, year = {2012}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2012.14908}, abstract = {The fore-wings of Rice grasshoppers, Oxya sp. are divided into compartmentsby a complex network of veins. There has been a long term hypothesis suggesting thatwing compartments bounded by veins may correspond to distinct cell lineages anddomains of gene expression. Hence, this study was conducted to determine thepatterns of modularity and integration in the fore-wings of the Rice grasshoppers,Oxya sp. A total of 180 points were used to outline the margins of the fore-wings.Results showed that the fore-wing of Oxya sp. is partitioned into 6 developmentalmodules. The consistency in the number and pattern of developmental modules in thefore-wings suggests that the wings are highly conserved indicating geneticconservatism in the morphological spaces. Results also suggest that compartments areconsidered an autonomous unit of gene regulation and major veins served asboundaries and as active center of integration.}, keywords = {Fore-wings,Modules,Modularity and Integration,Oxya sp}, url = {https://eajbsa.journals.ekb.eg/article_14908.html}, eprint = {https://eajbsa.journals.ekb.eg/article_14908_47accf93d9ad9f26971f55c7e7a57a1a.pdf} } @article { author = {Tumang, Vanessa and Torres, Mark and Demayo, Cesar}, title = {Describing Developmental Modules of Modularity and Integration in the Fore and Hind Wings of the Common Evening Brown Butterfly Melanitis leda Linnaeus (Nymphalidae: Lepidoptera) Using MINT Software}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {5}, number = {1}, pages = {67-72}, year = {2012}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2012.14909}, abstract = {In this study, developmental modules of modularity and integration of the foreand hind wings of Melanitis leda were described using the MINT software(Modularity and Integration Tool, ver. 1.5, Marquez, 2008). A total of 195 pointswere used to trace and outline the margins of the wings as well as the major veins.The test was conducted based on a Wishart/Monte Carlo test on a total of 1,000replicates. The best fit models are determined with the highest P-value and lowestgamma value. Differences in ranks of the top 3 models were observed in both the foreand hind wings of the butterfly. It was hypothesized to be caused by effects associatedwith the environment, phenotypic plasticity or the signalling sources for position andmorphology of pattern elements which only covers short distances.}, keywords = {Fore wing,Hind wing,modularity,Integration,Melanitis leda}, url = {https://eajbsa.journals.ekb.eg/article_14909.html}, eprint = {https://eajbsa.journals.ekb.eg/article_14909_050c7b98330123d4978bcc1f53b5344c.pdf} } @article { author = {Rezaei, Abolhasan and Krishna, MS and Santhosh, H. and Jayaramu, S.}, title = {Preliminary studies: the effect of temperature on the accessory gland in Drosophila melanogaster}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {5}, number = {1}, pages = {73-79}, year = {2012}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2012.14910}, abstract = {The accessory gland has a simple structure composed of a single layer of a cellssurrounding a lumen that is in turn surrounded by a muscle sheath. It synthesizes a proteins,carbohydrates and lipids which are transferred at the time of mating between male to themating female. In this study we have determined the number of cells, cell size and gland sizein male Drosophila melanogaster, unmated male flies of 2-3 day old were used the exposedto three temperatures, cold(15°c), middle (22°c) and high(29°c) temperature. The resultsshowed, cell size in cold temperature was smaller than middle and high temperature andbetween three temperatures results of ANOVA and correlation coefficient were significant, pvalue< 0.01 (cold>middle > high). Results of cell number in cold, middle and hightemperature by ANOVA variation and correlation coefficient was significant, the mean valueof cell number in high temperature more than low and middle temperature respectively(High> cold> middle). Regarding, gland size, the mean value also, in high temperaturecondition bigger than middle temperature. The results of ANOVA variation and correlationcoefficient were significant. [Our main aim is to show the effect of temperature on thereproductive system, especially on the male accessory gland in Drosophila including,structure of gland of cell size and cell number, that changed when flies were exposed todifferent temperature].}, keywords = {Accessory gland,cell size,cell number,Drosophila melanogaster}, url = {https://eajbsa.journals.ekb.eg/article_14910.html}, eprint = {https://eajbsa.journals.ekb.eg/article_14910_5eaaf09b0f1cb61e63bb8e8a9baa7aae.pdf} } @article { author = {Rezaei, Abolhasan}, title = {The effect of different temperature on the viability and fertility of Drosophila melanogaster}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {5}, number = {1}, pages = {80-87}, year = {2012}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2012.14911}, abstract = {Many studies found that the temperature has affected the fecundity and fertilityin the female of Drosophila melanogaster. In this study we used male of 2-3 days ageold and female of 5-6 days age old for studies of temperatures on the malereproductive performance and female fitness traits. In related to be compared threetemperatures from low (15°c) temperature middle temperature (22°c) and hightemperature (29°c), results were analysed by SPSS software for getting mean value ,ANOVA variation and correlation relationship. In this regard, females whichexposure to high temperature, among of egg laid and offspring produce (fecundity andfertility, respectively) less than middle and low temperature, that these results weresignificant, p value <0.000, between male and female with temperature and alsobetween fecundity and fertility. The results of correlation relationship are shown;there was a significant Pearson correlation between three temperatures (low, middleand high) with the rate of egg laid and egg hatchability.}, keywords = {Drosophila melanogaster,female mating,fecundity,fertility}, url = {https://eajbsa.journals.ekb.eg/article_14911.html}, eprint = {https://eajbsa.journals.ekb.eg/article_14911_ef5e8169bc8c7daec80d325d8720c5f9.pdf} } @article { author = {Reyad, Naglaa}, title = {Comparative studies on the effect of four entomopathogenic nematodes on the protein profile in Labidura riparia (Pallas) (Dermaptera: Labiduridae)}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {5}, number = {1}, pages = {89-98}, year = {2012}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2012.14912}, abstract = {In the present study, the infectivity of the four entomopathogenic nematodes,Steinernema glaseri, Steinernema carpocapsae, Steinernema riobrave andSteinernema scarptasci on the earwig. Labidura riparia (Nymph and adult) wasstudied under laboratory conditions. S. carpocapsae exhibited a high virulenceagainst the nymphs of L.riparia. On the other hand, S. scarptasci showed a highermortality rate to the L.riparia adults. The highest numbers of juveniles emerging frominfected insects (adult and nymphs) by nematode species S. carpocapsae were38750 Is/adult and 20750 IJs/nymph. Using SDS-polyacrylamide gel electrophoresisthe whole body proteins fractionated into 19, 18, 13, and 15 bands when L.ripariaadult were infected by S.glaseri, S. scarptasci, S. riobrave and S. carpocapsae,respectively. The most obvious observation was the complete disappearance of theslow moving protein fractions (fractions number 14-17) in samples infected by S.riobrave. Also, fractions 16-17 also disappeared in samples infected by S.carpocapsae. On the other hand, the disappearance of some protein fractions wasaccompanied with appearance of new fractions in samples of infected insects, i.e.,fractions 18 and 19 in S.glaseri- infected insects. Most of these new protein fractionswere among the low molecular weight. The tested samples affected the molecularweight, band percentage and protein content of the whole body profile protein. Theseresults suggested the tested four steinernematid species have side effect on thepredacious insect L.riparia (adults and nymphs), penetrates to its haemocoel causingdeath 4-days post infection.}, keywords = {Steinernema glaseri,Steinernema carpocapsae,Steinernema riobrave,Steinernema scarptasci,Labidura riparia,SDS-polyacrylamide gel}, url = {https://eajbsa.journals.ekb.eg/article_14912.html}, eprint = {https://eajbsa.journals.ekb.eg/article_14912_03a73ed90a548487a6d097ffbc8a09a4.pdf} } @article { author = {Jokar, Mahmoud and Zarabi, Mehdi}, title = {Surveying effect kind of food on Biological parameters on Chrysoperla carnea (Neuroptera: Chrysopidae) under laboratory Conditions}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {5}, number = {1}, pages = {99-106}, year = {2012}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2012.14913}, abstract = {Chrysoperla carnea (steph.) is a major, cosmopolitan predator of some whiteflyand Aphid. This research was evaluated relative consumption of three diets andeffects of prey kinds on developmental times, mortality percentage of larvae andpupae, consumption rate, longevity, fecundity, fertility, and sex ratio on C.carnea. Alllarvae stages and adults were reared on the different diets: 3rd nymphal stagesShizaphis graminum, and Bemisia tabaci (Biotype B), or a semi artificial diet (consistof honey, yeast, essential amino acid, and Distilled water) (10%, 15%, 25%, 2.5%,and 47.5%). All experiments were conducted at 25±50C, 60±5% RH, and photoperiodof 16:8 (L:D). Larval stages consumed 192.1±2.57 (no.) nymph Shizaphis graminum,and 479.7±4.08 nymph Bemisia tabaci in which results show significant differencebetween hosts consumed by larvae .There were significant differences between rate ofoviposition, larvae longevity 12.29±0.81, 14.02±0.9 and 10.07±0.3 day ,fertility ,andsex ratio on different diets (female: male when larvae fed on age of nymph Shizaphisgraminum ,Bemisia tabaci and artificial diet was 53:47, 52:48 and 57:43).Considering above parameters, artificial diet can be a best choice for mass rearing C.carnea.}, keywords = {Chrysoperla carnea,Shizaphis graminum,Bemisia tabaci (Biotype B),Biological parameter,artificial diet}, url = {https://eajbsa.journals.ekb.eg/article_14913.html}, eprint = {https://eajbsa.journals.ekb.eg/article_14913_f48cff4c600665ea93ea7f0f6317ec4b.pdf} } @article { author = {Jokar, Mahmoud and Zarabi, Mehdi}, title = {Investigation effect three diets on life table parameters Chrysoperla carnea (Steph.) (Neuroptera: Chrysopidae) under Laboratory Conditions}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {5}, number = {1}, pages = {17-114}, year = {2012}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2012.14914}, abstract = {The common green lacewing, Chrysoperla carnea (Stephens) (Neuroptera:Chrysopidae) is best-known as biocontrol agent. The suitability diet was important inmass-rearing and releasing field. C.carnea has a serious role at IPM cultures appositeof aphid and whitefly pest. For this purpose, Schizaphis graminum (Rondani)(Hemiptera: Aphididae), Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae)biotype-B 3rd nymphs stage and Semi artificial diet as prey for Life table parameterswas evaluated. All experiments were conducted at 25 ± 5 0C, 60± 5% RH andphotoperiod of 16:8 (L:D).This study, the collected data was analyzed by using JackKnife model and SAS (9.1) soft ware and experimental design was formattedCompletely Randomized Design (CRD) and comparison among means followed byTukey’s HSD post hoc test. The highest Lx (number of individuals alive between agex and x+1) and the lowest dx (numbers dying during the age interval x) were 0.99 and0.005 (%) that belonged semi artificial diet. Reproductive and stable populationparameters such as Net Fertility rate, Net reproductive rate (R0), Gross reproductiverate (GRR), Intrinsic of increase (rm), Mean generation time (Tc) and Doubling time(DT) in aphid, whitefly and semi artificial diets were 244.9±4.1, 170.2±3.4, 364.6±2;175.43±4.33, 156±5.4, 267±4.8; 0.143±0.005, 0.124±0.004, 0.185±0.002;34.93±0.47, 38±0.74, 29.79±0.57 and 4.83±0.08, 5.58±0.06 and 3.74±0.05,respectively. According to these results, semi artificial diet was appropriate diet.}, keywords = {Chrysoperla carnea,life table parameters,Schizaphis graminum,Bemisia tabaci,Semi artificial diet}, url = {https://eajbsa.journals.ekb.eg/article_14914.html}, eprint = {https://eajbsa.journals.ekb.eg/article_14914_aca4c489011b0278a61178ff0458b8d1.pdf} } @article { author = {Jokar, Mahmoud and Zarabi, Mehdi and Hasanzadeh, Mostafa and Mohammadifar, Mehrnoush and Sahebany, Nvazallh and Etebarian, Hasan}, title = {Effect of cultural condition on biomass production of some Nematophagous fungi as biological control agent}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {5}, number = {1}, pages = {115-126}, year = {2012}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2012.14947}, abstract = {Nematophagous fungi include a group of fungal antagonists to nematodes. Thenematophagous fungi have been suggested as promising candidates for biologicalcontrol of plant parasitic nematodes. Impacts of different pH levels, temperature, lightintensity, carbon and nitrogen source were tested on the growth of five nematophagusfungi under in vitro conditions. Three isolates of Trichoderma harzianum T7, T8, andT14, one isolate of Pochonia chlamydosporia var. chlamydosporia and one isolate ofArthrobotrys oligospora were tested. The results of experiment indicated that thegrowth of isolates of Trichoderma harzianum was maximum in pH range of 7.00-8.00. The best growth of Pochonia chlamydosporia var. chlamydosporia andArthrobotrys oligospora was in 4.00-7.00. Effect of temperature differs between rangeof 15-30°C, for isolates of Trichoderma harzianum was 20-25°C, Pochoniachlamydosporia var. chlamydosporia was 15-20°C, and Arthrobotrys oligospora was20-25°C. Maximum growth of two isolates of Trichoderma harzianum T7, T8 andPochonia chlamydosporia var. chlamydosporia was in darkness. Best growth of oneisolates of T. harzianum (T7) was in light and maximum growth of Arthrobotrysoligospora and Trichoderma harzianum T14 occurred in 12 h light and 12h dark. Thebest source of nitrogen for Trichoderma harzianum (T8,T14) was Nitrate potassium,while Nitrate ammonium was the best nitrogen source for (T7).The maximum growthof A. oligospora and P. chlamydosporia occuerd in Nitrate sodium. Between carbonsources Arabinose are suitable for A.oligospora and Trichoderma harzianum (T7).Themaximum growth of P. chlamydosporia and T. harzianim (T14) occuerd in the use offructose. Best growth of T. harzianum (T8) was in Mnitole.}, keywords = {Arthrobotris oligospora,Trichoderma spp,pochonia chlamydosporia,pH,Tempercher,Light,Carbon,nitrogen}, url = {https://eajbsa.journals.ekb.eg/article_14947.html}, eprint = {https://eajbsa.journals.ekb.eg/article_14947_5b3a463a9219dd7ce015df3b884ce9c9.pdf} } @article { author = {Y., Abdallah and Abdel-Wahed, M. and Youssef, GH.}, title = {Life table parameters as indicator of potato Varieties susceptibility to infestation with Phthorimaea operculella (Zeller)}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {5}, number = {1}, pages = {127-136}, year = {2012}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2012.14952}, abstract = {Life table studies for Phthorimaea operculella (Zeller) were carried out on fourpotato varieties, namely Atlas, Spunta, Simone and Nicola to evaluate the preferredvariety for feeding Ph. operculella larvae. The calculated biological parameters viz.Net reproductive Rate (R0), Generation time (Gt), Intrinsic Rate of Increase (rm),Finite Rate of Increase (λ) and Population Doubling Time (Dt) indicate that Atlasproved to be the quite favorable for achieving the highest developmental andmultiplication rates of Ph. operculella, followed by Simone and Spunta, meanwhileNicola was the least favorable data figure in this respect were obtained.The natural mortality figures; Apparent Mortality (AM), Real Mortality (RM),Indispensible Mortality (IM), Mortality-Survivor Ratio (MSR) and log population andk factor for larvae reared on Atlas variety were 41.86, 36, 22.32, 4.42, 2.54 and 0.24respectively, the values 32.89, 25, 13.72, 1.55, 2.48 and 0.17 were obtained forSimone, the values 43.75, 35, 21.77, 3.11, 2.50 and 0.25 for Spunta and 51.19, 43,22.02 and 5.51for Nicola.For pupae similar natural mortality trends were observed when Ph. operculellalarvae were fed on Atlas, 38, 19, 19, 3.77, 2.30 and 0.21, while these values were45.10, 23, 23, 2.6, 2.31 and 0.26 for Simone. The corresponding values on Spuntawere 37.78, 17, 17, 2.43, 5 and 2.21 and 48.78, 20, 20 and 5 for Nicola.It could be concluded that Nicola is the least susceptible variety for infestation;while Atlas is the most favorable variety for feeding Ph. operculella for researchpurposes.}, keywords = {susceptibility,varieties,Life tables,Potato tuber moth,Phthorimaea operculella}, url = {https://eajbsa.journals.ekb.eg/article_14952.html}, eprint = {https://eajbsa.journals.ekb.eg/article_14952_b6099034f7b1f7835f30574f437279da.pdf} } @article { author = {Fahmy, Nedal}, title = {Impact of two insect growth regulators on the enhancement of oxidative stress and antioxidant efficiency of the cotton leaf worm, Spodoptera littoralis (Biosd.)}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {5}, number = {1}, pages = {137-149}, year = {2012}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2012.14956}, abstract = {The present study was conducted for evaluating of the impact of two insectgrowth regulators (IGRs) namely, Applaud (buprofezin) as a chitin synthesis inhibitorand Admiral (pyriproxyfen) as juvenile hormone analogue (JHA) in the larval body ofthe cotton leaf worm, Spodoptera littoralis. This evaluation was achieved via (1)Estimating the antioxidant system response present in the 4th larval instar of S.littoralis through estimating the activity of two enzymes; catalases (CAT) andglutathione-S-transferase (GST), as well as an antioxidant compound; glutathionereduced (GSH). (2) Estimating the accumulated lipid peroxidation in the larvaltissues by evaluating the level of Malonaldehyde (MDA) as an indicator for lipidperoxidation. Both tested IGRs used in this study showed more or less similar trend intheir mode of action relative to the tested biomarkers in the present work. CATshowed a significant increase in its activity (42.02%) and (139.26%) for buprofezinand pyriproxyfen, respectively. This activity lasts for only one day post treatment thenit was inhibited to be very close to that level in normal untreated larvae. This may bedue its consumption in scavenging reactive oxygen species (ROS) produced due tosignificant accumulation of MDA. One the other hand, GST showed persistedincrease in its activity especially with buprofezin treated larvae may be to overcomethe deleterious effect of accumulating MDA. Similarly, GSH which serves as a freeradicals scavenger also showed a significant increase in its level especially due totreatment. The present study which is conducted for the first time, documented theoccurrence of lipid peroxidation due to IGRs treatment in the larval tissues in S.littoralis larvae which enhanced different antioxidant defensive system to overcomeits effect.}, keywords = {Insect Growth Regulators,Spodoptera littoralis (Biosd.)}, url = {https://eajbsa.journals.ekb.eg/article_14956.html}, eprint = {https://eajbsa.journals.ekb.eg/article_14956_14394a41cf778f03602619fc2a2b30db.pdf} } @article { author = {Mansour, Sameh and Bakr, Reda and Hamouda, Laila and Mohamed, Reham}, title = {Adulticidal activity of some botanical extracts, commercial insecticides and their binary mixtures against the housefly, Musca domestica L.}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {5}, number = {1}, pages = {151-167}, year = {2012}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2012.14961}, abstract = {The preliminary toxicity screening of 13 plant extracts against Musca domesticaL. adult at 300 and 1000 ppm, revealed excluding both Opuntia vulgaris andSaccharum spp. which showed very low toxicity even at the higher concentration.Based on the obtained LD50 values for the eleven ethanolic extracts applied topicallyto the house fly adult, the extract of Piper nigrum showed the highest toxicity (LD50= 0.115 ug/insect), while Punica granatum induced the lowest toxicity (LD50 = 0.278ug/insect). Toxicity values of the other tested extracts ranged between the abovementioned values. For the tested insecticides, the LD50 values ranged between0.00026 ug/insect for methomyl and 0.0013 ug/insect for flufenoxuron. Combining of11 botanical extracts with 4 insecticides has resulted in 44 binary mixtures; all ofthem showed potentiating effects with different degrees. Moreover, mixing theinsecticides at LC0 (a concentration level causing no observed mortality) with theLC50 of each of the plant extracts have resulted in 44 paired combinations of highsynergistic factor (S.F.). Based on the obtained RC50 values (repellent concentrationfor 50% of the tested house flies), the bioassayed extracts could be arranged withrespect to their efficacy as follows: Salix safsaf (0.24 mg/cm2)> Conyza aegyptiaca(0.25 mg/cm2) > Azadirachta indica (0.28 mg/cm2); followed by 5 extracts of thesame RC50 value; 0.29 mg/cm2 (Cichorium intybus, Citrus aurantifolia, Piper nigrum,Sonchus oleracues and Zea mays). The results of toxicity against adult stage ofhouse fly by sugar bait method revealed that the most potent plant extract was C.aegyptiaca which showed LC50 value of 4.8 ppm, and the lowest one was P. granatum(LC50 = 10.4 ppm). Compared to the plant extracts, the tested insecticides showedvery high toxicity; where the obtained LC50s equaled to 0.60, 0.64, 0.66 and 0.74ppm, respectively for deltamethrin, chlorpyrifos, methomyl, and flufenoxuron. Theresidual toxicity of the tested plant extracts and insecticides against the adult stage ofM. domestica indicated that C. aegyptiaca possessed the highest t50 and t20 values(10.6 and 24.8 days, respectively). Dissipation of residual toxicity for the testedinsecticides followed the following descending order: chlorpyrifos > deltamethrin >methomyl > flufenoxuron. The overall results of the present investigation reveal thebroad-spectrum toxic properties of the tested plant extracts against Musca domesticaadult; findings which may encourage further research on house fly control in tropicsusing indigenous plants.}, keywords = {Housefly,Botanical biocides,Insecticides,joint action,Repellent effects,Residual toxicity}, url = {https://eajbsa.journals.ekb.eg/article_14961.html}, eprint = {https://eajbsa.journals.ekb.eg/article_14961_1a2a704f8dc0ba8877b69a7e4bb5627c.pdf} } @article { author = {Moussa, Saber and Salman, Ahmed and Bakry, Mostafa}, title = {The negative effects of Parlatoria blanchardii (Targ.) infestation on the morphological and chemical characters of certain varieties leaflets of date palm trees at Luxor governorate, Egypt.}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {5}, number = {1}, pages = {169-181}, year = {2012}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2012.14964}, abstract = {The present investigation was carried out at Esna distract, Luxor governorateon 15 September 2011 to evaluate the negative effects of the infestation by Parlatoriablanchardii (Targ.) on the mineral nutrients contents (macronutrient andmicronutrient) of certain date palm varieties leaflets. Date palm varieties namedWhite (local name), Seedy Balady, Gendeila, Malakaby and Shamia. The obtainedresults revealed that the uninfested date palm leaflets were significantly higher whenfound in fresh weight, weight after one hour of drying, dry weight, moisture content,epicuticular wax, leaflet area, specific leaflet area and photosynthetic pigments thanthe infested ones for the all tested varieties. In contrast, the dry matter, loss moisturecontent and specific leaflet weight were significantly increasing in the infested leafletscompared to uninfested ones. White date palm variety was considered the greatestinfestation with P. blanchardii, exhibiting the highest percentage of reduction in themoisture content, epicuticular wax, leaflet area, specific leaflet area and chlorophyll(a) and carotenoids, and exposed the least percentage of reduction in the dry matter, %lost moisture and specific leaflet weight in the infested leaflets compared with theuninfested ones. The loss in the measured parameters was a summation of manyfactors including insect infestation, time of infestation and variety. The relative role ofthese factors may differ among different varieties.}, keywords = {Parlatoria blanchardii,date palm varieties,epicuticular wax,leaflet weight,leaflet area,plant pigments and dry matter,moisture content and percentage of reduction}, url = {https://eajbsa.journals.ekb.eg/article_14964.html}, eprint = {https://eajbsa.journals.ekb.eg/article_14964_72ff691e80fb3180506f78f7956f103f.pdf} } @article { author = {M., Abd El Rahman and Moussa, Saber and Mosleh, Yahya and Mohamed, Mona}, title = {The efficiency of certain chemical and non-chemical insecticides against the mango soft scale insect, kilifia acuminata (Signoret) on mango trees in Ismailia Governorate.}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {5}, number = {1}, pages = {183-191}, year = {2012}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2012.14968}, abstract = {Two experiments were carried out to evaluate the efficiency of chemical and nonchemicalinsecticides on the mango soft scale insect, kilifia acuminata (Signoret) infestingmango trees in Ismailia Governorate. The first experiment was carried out at the first ofJanuary, 2007 in El-Kantra Gharb district and the second experiment was carried out at thefirst of January, 2008 in El-Kantra Gharb district, Ismailia Governorate, respectively. Theobtained results of the first experiment indicated that Admiral gave the highest reductionpercentage (91.44%), followed by Biroanza (85.53%), Biover (84.30%) and Malathionwhich gave (78.82%) percentage of reduction. The least effective compound was Conservewhich showed (69.47%) percentage of reduction. The obtained results of the secondexperiment showed that Admiral the most superior compound which gave (86.14%)percentage of reduction. The rest of compounds could be descendgly arranged as follows:Gogopa oil (81.97%), Super Royal oil (81.97%), Biover (79, 29%), Royal oil (74.35%), andDiver and oil (72.17%) percentage of reduction. The least effective insecticide was Masronaoil which gave (72.03%) percentage of reduction of the different stages of the mango softscale insect.}, keywords = {Insecticides,mango soft scale insect,Ismailia Governorate}, url = {https://eajbsa.journals.ekb.eg/article_14968.html}, eprint = {https://eajbsa.journals.ekb.eg/article_14968_f5f035c35d28ed805a048eb80e55391e.pdf} } @article { author = {Kumari, Ranjana and Pandey, B.}, title = {Patterns of rainfall and incidence of malaria in Purnia district (Bihar), India}, journal = {Egyptian Academic Journal of Biological Sciences. A, Entomology}, volume = {5}, number = {1}, pages = {193-195}, year = {2012}, publisher = {Egyptian Society of Biological Sciences}, issn = {1687-8809}, eissn = {2090-0813}, doi = {10.21608/eajbsa.2012.14971}, abstract = {A study was carried out to find out co-relation between rainfall andinstances of malaria infection in different villages of Purnia district . The studyclearly indicates that there occurs a high positive co-relation between rainfall andinstances of malaria in the studied villages of the district. There occurs a gradualincrease in instances of malaria with gradual rise in rainfalls. The study also indicatesthat besides rainfall, ambient temperature also plays a key role in the incidence ofmalaria as in certain months the incidence of malaria was not found having butrainfall. Maximum incidence of malaria was noticed during rainy season followed bysummer and winter seasons.}, keywords = {Malaria,India}, url = {https://eajbsa.journals.ekb.eg/article_14971.html}, eprint = {https://eajbsa.journals.ekb.eg/article_14971_1ef8b59c7807b1621be4bdfb641dee4e.pdf} }