2024-03-29T10:57:32Z
https://eajbsa.journals.ekb.eg/?_action=export&rf=summon&issue=3722
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
1687-8809
2018
11
5
Nano Bioinsecticides based on Essential oils Against Phenacoccus solenopsis
Sawsan
A.
Afaf
Abasse
Horeia
H.
Naema
A.
Mohammed
M.
In the present study,insecticidal Activity of essential oils (lemon grassCymbopogon citratus, thyme Thymusvulgaris and geranium Pelargoniumgraveolens) and silver nanoparticles(AgNPs) synthesized by using testedessential oils were evaluated against female of P. solenopsisTinsley. At high concentration (40µl/l), the percentages of p. solenopsismortality recorded 100, 100 & 86.70%, for thyme, lemon grass and geranium EOs,while it recorded 100, 90 and 83.3 % at (400ppm) of AgNPs-thyme,AgNPs-lemon grass, and AgNPs-geranium after 72hrs of treatment. All essentialoils and AgNPs were proved to be very toxic to female of p. solenopsis.However, thyme essential oil and AgNPs-thyme recorded the highest mortalitypercentage with LC50 = 8.094 μl/l & 86.645 ppm, respectively,followed by lemon grass (bulk & AgNPs- lemon grass oil) and geranium oil (bulk &with AgNPs- geranium oil).
Phenacoccus solenopsis
lemon grass Cymbopogon citratus
thyme Thymus vulgaris and geranium Pelargonium graveolens
Phyto-Synthesized Silver Nanoparticles AgNPs
2018
09
01
1
12
https://eajbsa.journals.ekb.eg/article_17738_d32c2b2ed6b10773ee36bfe2eb047f3a.pdf
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
1687-8809
2018
11
5
Taxonomic revision on subfamily Eremazinae, (Coleoptera: Scarabaeidae) in Egypt
Dalia
Elshewy
Two species and one genus belonging to subfamily Eremazinae are revised in present work. A key is presented to differentiate between the two species, diagnosis for family, genera, description of species and illustration of taxonomic character for each species are given.
Coleoptera
Scarabaeidae
Eremazinae
Egypt
2018
09
01
13
19
https://eajbsa.journals.ekb.eg/article_17739_692d2affbd9e0bb466fe2dc24cff15dc.pdf
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
1687-8809
2018
11
5
Biological Studies on Cheyletid Predator Mite, Cheletogenes ornatus (Canestrini & Fanzago) when Fed on the Different Preys
Wedad
Atwa
Mahmoud
El-Naggar
Abden
Khalil
Manal
El-Shaer
Zeinab
Mostafa
The Cheyletid mite, Cheletogenesornatus (C. & F.) (Actinidida: Cheyletidae) was reared at 20and 25+2°Cand 60-65% R.H. oneggs and immature stages of Astigmatid mite, Acarus farrie (Oudemans). The predatory mite C. ornatus fed successfully on the tested food . Results indicated that female predator had two nymphal stages, while themale had one nymphal stage. It was significant differences between the male andfemale during immature stages and lifecycle,; the longest period was 21.28 and 29.77 days for females which fed onimmature stages of A. farrie, the shortest values was observed for males which fedon egg of A. farrie were13.9 and 22.08 days, respectively. The longest Oviposition period observed was 22.52 days, at 25 °C while, the shortestperiod was 20.75 days at 20 °C when the adult female fed on eggs of A. farrie. Fecundity was significantly higher when the adultfemale fed on eggs of A.farrie at 25 °C and decreased to recorded the lowest numberof deposited eggs at 20°C. There was significant different effect of thetemperature on female and males food consumption during longevity,; the highestnumber consumed by female and male was recorded at 20 °C, whereas the lowestnumber was record at 25 °C.
Cheletogenes ornatus
Wheat
Acarus farrie
food consumption
Cheyletidae
Acaridae
2018
09
01
21
29
https://eajbsa.journals.ekb.eg/article_17740_e15424f525328b0b48fc766b94d680a3.pdf
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
1687-8809
2018
11
5
Impairment of Development and Reproductivity of the Egyptian cotton leafworm Spodoptera littoralis Boisduval (Noctuidae: Lepidoptera) by Cycloheximide.
Basiouny
A.
Karem
Ghoneim
The Egyptian cotton leafworm, Spodopteralittoralis, is destructivepest of cotton and various crops in Egypt and someparts of the world. The present study was carried outaiming to assess the disruptive effects of cycloheximide on survival, growth,development, metamorphosis and reproductive potential of this pest. Four doses:180, 120, 60 and 30 µg/larva had been topically applied (once) onto the newlymoulted last instar larvae. cycloheximide exhibited toxic effect on larvae,pupae and adults.Unexpectedly, no mortality was observed at the highestdose.LD50 was estimated at 0.013 µg/larva.Themaximal weightsof the treated larvae increased and the larval growthwas remarkably enhanced. Thelarval and pupal durations were shortened.Some larvae appeared as'giant larvae', only at the lower two doses.They enlarged insize and appeared heavier than other treated and control larvae. They survived2-times longer period than of the control larvae and perished without pupation.Topical treatment of larvae only with the lower two doses induced a stateof suspended development, 'permanent prepupae' which failed to pupate.Cycloheximideexerted an inhibitory action on the pupation rate after treatment only with thelower three doses. Some deformed pupae were produced. The adult emergence wasconsiderably blocked at lower three doses.The oviposition wascompletely prevented, at the higher two doses, but partially inhibited at thelower two doses. No fecundity could be determined at the higher two dosesbecause no oviposition was carried out. At the lower two doses, fecundity wasdramatically reduced. All eggs failed to hatch indicating complete sterility ofS. littoralis.
Adult
fecundity
fertility
larva
metamorphosis
morphogenesis
mortality
oviposition
pupa.
2018
09
01
31
58
https://eajbsa.journals.ekb.eg/article_17741_0a08866022334a7bdc12f0c02daee3c2.pdf
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
1687-8809
2018
11
5
Deteriorating Effects of Methoxyfenozide on Survival, Development and Metamorphosis of the Olive Leaf Moth, Palpita unionalis (Hübner) (Lepidoptera: Pyralidae).
Hamadah
Kh.
Abo Elsoud
A.
The olive leaf moth Palpita unionalis is one of the serious olive pests in Egypt and several countries. The objective of the current study was to evaluate the effects of methoxyfenozide, an ecdysteroid agonist, on survival, growth, development and metamorphosis of this pest. The newly moulted last instar (6th) larvae were treated with six concentrations (100, 10.0, 1.00, 0.10, 0.01 and 0.001 ppm) via the fresh olive leaves, as food. The strongest acute toxicity (100% mortality) was exhibited against larvae at the highest concentration, but no mortality was observed at the lowest one. The developed pupae had been subjected to the toxic effect only at the higher three concentrations. Increasing adult mortality% was recorded at concentrations other than the highest or lowest one. LC50 was calculated in 0.176 ppm. The somatic weight gain of larvae, growth rate, larval duration and developmental rate of larvae had been pronouncedly reduced. The pupal duration was non-significantly prolonged and the pupal developmental rate was slightly regressed. The successfully developed pupae suffered a desiccation action of methoxyfenozide. The metamorphosis program was impaired, since some larval-pupal intermediates had been produced. In addition, the pupal morphogenesis was deteriorated, since some pupal deformations had been produced after larval treatment only with 0.10 ppm.
Growth
larva
morphogenesis
mortality
pupa
toxicity.
2018
09
01
59
78
https://eajbsa.journals.ekb.eg/article_17742_48aabd9cf4feeb32650f7523803857e0.pdf
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
1687-8809
2018
11
5
Disruptive Effects of Certain Chitin Synthesis Inhibitors on Adult Life Parameters and Reproductive Potential of the Pink Bollworm, Pectinophora gossypiella (Saunders)(Lepidoptera: Gelechidae).
Tanani
M.
Karem
Ghoneim
The pink bollworm,Pectinophoragossypiella, is a dangerous pest of cotton worldwide, The objective of thecurrent study was to evaluate the disruptive effects of the chitin synthesisinhibitors, noviflumuronand novaluron, on the adult performance andreproductive potential of this pest after treatment of1-day old eggswith sublethal concentrations of noviflumuron(4.0, 2.0, 1.0 and 0.5ppm)and novaluron (1.0, 0.5, 0.1 and 0.05 ppm). The adult emergence wasconsiderably blocked by both compounds but they failed to affect the adultsurvival or morphogenesis. The total adult longevity was remarkably shortened.Noviflumuron treatment caused a slight prolongation or shortening ofpre-oviposition period, depending on the concentration but novaluron treatmentled to slightly prolonged period. The oviposition period was remarkablyshortened. Prolonged post-oviposition period was recorded by both compounds. The oviposition efficiency was significantlyprohibited, regardless the tested compound. Fecundity of the successfullyreproducing females and fertility of eggs laid by these females weredrastically reduced. The incubation period of eggs was considerably prolongedby both compounds.
emergence
fecundity
fertility
incubation
longevity
oviposition
2018
09
01
79
102
https://eajbsa.journals.ekb.eg/article_17743_457289e8a38da78ab9ac6b86e6de1f02.pdf
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
1687-8809
2018
11
5
Review of subfamily: Xyleninae of Egypt (Lepidoptera, Noctuidae)
Abdel
Amer
Ashraf
El Torkey
Salah
Al Azab
Based on material from the main reference collections in Egypt, light traps collections, National museums and other references, 44 species in 6 tribes (Apameini, Caradrinini, Cosmiini, Phlogophorini, Prodeniini and Xylenini) and 21 genera were listed. Some further taxonomic changed re proposed. Taxonomic position, synonyms and types are included and photographs for available species are provided. This subfamily according to the new taxonomy of Noctuidae and it is the first time to review in Egypt.
Important Note: For correction in the last paper by AbdelfattahMabrouk Amer Salem and Ashraf M. El Torkey (2017), we have mention that Spodoptera exempta are exist in Egypt according to Haggis (1986), but when we revised the paper we found that she didn’t mention that collect any specimens or recorded any specimens from anywhere in Egypt, so, we exclude them from the paper because of we didn’t find any specimens and any records from anywhere in Egypt, so that Spodoptera exempta are not recorded completely and not exist in Egypt.
Lepidoptera
Noctuidae
Xyleninae
Egypt
2018
09
01
103
125
https://eajbsa.journals.ekb.eg/article_17744_68535cc2b217d6e9721111a5a243178a.pdf
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
1687-8809
2018
11
5
Taxonomical Studies of Subtribe Astenina Hatch (Paederinae, Staphylinidae: Coleoptera) in Egypt
Emad El-Din
Bibars
Six species, two subgenera belonging to genus Astenus Dejean are taxonomically revised. The first subgenus contains one species (A. (Astenopleuritus) melanurus, the other five species transferred from subgenus Astenognathus Reitter to subgenus Astenus Dejean according to the recent catalogue. Key to subgenera and species are provided. Descriptive notes with some illustrations, distribution and synonymy of all species are given.
Staphylinidae
Paederinae
Astenina
Taxonomy
Egypt
2018
09
01
127
137
https://eajbsa.journals.ekb.eg/article_17745_41550150d81cbb9ea7a222ceba8f6545.pdf
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
1687-8809
2018
11
5
The Relation Between Developmental Stages of the Predator, Rodalia cardinals (Mulsant) Reared on Icerya purchasi Maskell and the Required Thermal Units
Mohamed
E.
H.
Nabil
A.
Jabbar
A.
Saleh
Laboratory experiments were carried out in the Insectary of Economic Entomology Department Faculty of Agriculture, Mansoura University study the relationship betweenthe developmental stages of the predator, Rodalia cardinals (Mulsant)and the required thermal units at threeconstant temperatures, (15, 25 and 30˚C) on the third nymphal instar of Icerya purchasi Maskell. The results indicated that, the duration of the predator was longer at 15˚C. As temperature increased from 15 to 30˚C the developmental aspects of R. cardinals decreased. The lower thermal threshold for thedifferent stages were 10.5, 8.5, 5.3, 5.2, 5.4, 6.9, 0.8 and 1.3˚Cfor egg stage, larval stage, pupal stage, preoviposition period, oviposition period, postoviposition period, adult female longevity and adult male longevity, respectively. The heat units required for the development of eggs was 56.2 DD unite, while for larvae, pupae, adult female and adult male were 211.3, 114.7, 969.3 and 664.4, consecutively.
The results revealed that, the longevity of the predator adult stage decreased with increasing the temperature degrees. The highest consumption rate per female was at 15 ˚C comparing with the other temperature degrees. The highest number of deposited eggs per female was 25 ˚C with the value of 443.71 eggs/ female. Obtained results provide essential information for predicting the field population of the predator R. cardinals, releasing time on certain mealybug species for controlling this pest and it's recommended to be an item of integrated pest management programs in Egyptian field designed to control certain mealybug species.
Rodalia cardinals
Icerya purchasi
themal units
2018
09
01
139
147
https://eajbsa.journals.ekb.eg/article_17746_e1e0ce7a2bc431eabf0395986513b792.pdf
Egyptian Academic Journal of Biological Sciences. A, Entomology
1687-8809
1687-8809
2018
11
5
Biochemical and Molecular Studies Related to Phase Change in Gregarious and Solitarious Desert Locust, Schistocerca gregaria (Forskal) (Orthoptera: Acrididae)
Eman
Mohamed
Ola
Zyaan
Nadia
Ahmed
Noha
Guneidy
Amany
Khaled
Nagi
Badawy
Quantitative and qualitative analysis of protein and DNA were investigated in two extreme phases, gregarious and solitarious Schistocerca gregaria, in addition to, their transient stages. The level of protein in long-term solitarious S. gregaria revealed highly significant reduction when compared with the gregarious phase (P<0.05). These protein levels were 16.33±0.14 and 7.95±0.21 mg/10ml for long-term gregarious and solitarious S. gregaria, respectively. Data revealed 52 bands as the maximum number of protein which detected at the molecular weight (Mw) ranged from 25 to 225.4 kilodaltons (kDa). The most separated protein bands were detected in Mw ranging from 46 to 25 kDa. Likewise, quantitative analysis of DNA levels showed a significant reduction of DNA level in long-term solitarious S. gregaria, compared with gregarious phase (P<0.05). These DNA levels were 7.75± 0.30 and 4.4±0.28 µg/µl for long-term gregarious and solitarious S. gregaria, respectively. Furthermore, the fraction DNA pattern of tissue assessed that there are 15 different DNA bands detected at Mw ranging from 366 to 3484 base pair (bp). In conclusion, each phase of S. gregaria has a significant change in protein content and the fraction pattern of the DNA, which was clearly reflected in genetic and epigenetic differences among different phases of S. gregaria.
Schistocerca gregaria
protein
DNA
solitary
gregarious
Transient
2018
09
01
149
161
https://eajbsa.journals.ekb.eg/article_17762_e4f2bea29538034088c9b9996b3ff5b1.pdf