ORIGINAL_ARTICLE
Disturbed Survival, Growth and Development of the Desert Locust Schistocerca gregaria by Different Extracts of Azadirachta indica (Meliaceae) and Nigella sativa (Ranunculaceae).
The desert locust Schistocerca gregaria is an economically dangerous pest invading several countries in North Africa and West Asia. The present work aims at assessing the effects of Nigella sativa extracts, compared to Azadirachta indica extract Neemazal, on survival and development of this pest. Treatment of the newly moulted penultimate instar or the newly moulted last instar nymphs with Neemazal leads to the decrease in gained somatic weight. It, also, exhibiteds an inhibitory effect on the development of penultimate instar nymphs and intervenes with the metamorphosis program because that some nymphal-adult intermediates were formed. After treatment of the newly moulted penultimate instar nymphs with N. sativa extracts, the lethal effects of both the methanolic and petroleum ether extracts were exerted early in the same treated nymphs but no mortality rats were detected among the treated last instar nymphs by methanolic extract. Treatments of the same nymphs with N. sativa extracts led to the decrease in the body weight gain. The methanolic or petroleum ether extract significantly inhibited the nymphal development. Treatment with n-butanolic extract resulted in disrupted metamorphosis because some nymphal-adult intermediates appeared proportionally to the concentration level. Treatments of the newly moulted last instar nymphs with N. sativa extracts deprived the nymphs to obtain normal somatic weight. Methanolic extract caused a slightly suppressed developmental rate. The n-butanolic extract exhibited a reverse action because significantly accelerated developmental rates, were recorded.
https://eajbsa.journals.ekb.eg/article_13246_8931ded7407f84935d9b1ed3fe62d546.pdf
2013-06-01
1
21
10.21608/eajbsa.2013.13246
Schistocerca gregaria
neemazal
Nigella Sativa
mortality
Growth
Development
Hamadah
Sh
1
Department of zoology, Faculty of Science, Al-Azhar University, Madenit Nasr, Cairo
AUTHOR
Ghoneim
S.
2
Department of zoology, Faculty of Science, Al-Azhar University, Madenit Nasr, Cairo
AUTHOR
El-Hela
A.
3
Department of pharmacognosy, Faculty of Pharmacy, Al-Azhar University, Madenit Nasr, Cairo
AUTHOR
Amer
M.
4
Department of zoology, Faculty of Science, Al-Azhar University, Madenit Nasr, Cairo
AUTHOR
Mohammad
A.
5
Department of zoology, Faculty of Science, Al-Azhar University, Madenit Nasr, Cairo
AUTHOR
ORIGINAL_ARTICLE
Abnormal behaviors mediated by nest cell size: a case study with Yemeni honey bees
In the Yemeni honey bee, Apis mellifera jementica, as in other species of honey bees in the genus Apis, the queen is responsible for the egg-laying duties, while workers are facultatively sterile and perform other colony-wide tasks. Under certain conditions, however, workers can lay unfertilized eggs that develop into male drones. In this study, the effect of cell size on queen egg laying and worker policing behaviorswas investigated. Yemeni honey bee queens were allowed to lay eggs in different cell size combs. Abnormal queen-laid eggs in large cell size combs were found to be removed by workers firstly followed by worker-laid eggs within 24 hours while abnormal queen-laid eggs, in normal cell size combs, survived up to three days. Nest cell size seemed to contribute in the alteration of queen egg laying and policing behaviors.
https://eajbsa.journals.ekb.eg/article_13360_9c052ab35907028c63222414718b1c83.pdf
2013-06-01
23
27
10.21608/eajbsa.2013.13360
Apis mellifera/ honey bee queen/ cell size/ worker policing/ egg-laying
Hossam
Abou-Shaara
entomology_20802000@yahoo.com
1
Baqshan`s Chair for Bee Research, Plant Protection Department, College of Food and Agriculture Sciences, King Saud University, P.O.Box. 2460, Riyadh 11451,
AUTHOR
ORIGINAL_ARTICLE
Biochemical studies on the effect of Chitin synthesis inhibitor, (flufenoxuron) and SpliNPV on the cotton leaf worm Spodopteralittoralis Bosid (Lepidoptera:Noctuidae)
In this studyflufenoxuron as insect growth regualtor and SpliNPV were used to investigate their toxicity on Spodopteralittoralis. Both 2nd and 4th larval instars of S. littoralis were exposed to the different concentrations of flufenoxuron and SpliNPV. The biochemical effect of IGR and SpliNPV on both 2nd and 4th larvae instar show changes in protein electrophoretic pattern in the current study reveals differences between the untreated samples and treated one, some proteins were missed or expressed at different stages which may be responsible for all the obtained deformation. The effect of these compounds on biochemical activities were revealed after studying electrophoretic protein (fractionated protein) using PAGE in order to determine their effects on the vital system of S. littoralis, which may indicate the formation of new proteins responsible for stimulating the immune system of the insect as a result of entering foreign objects inside the body of the insect.
https://eajbsa.journals.ekb.eg/article_13361_c85dba6cd63ca995b013661288908795.pdf
2013-06-01
29
38
10.21608/eajbsa.2013.13361
Spodopteralittoralis
Flufenoxuron
SpliNPV
biochemical
protein
Reda
Bakr
redabakr55@gmail.com
1
-Entomology Department - Faculty of Science - Ain Shams University. -Biology Department, Faculty of Science, King Khalid University, Abha, Saudi Arabia
AUTHOR
Jehane
Hafez
2
Entomology Department - Faculty of Science - Ain Shams University
AUTHOR
Omaima
Khamiss
3
Genetic Engineering and Biotechnology Institute - Menofeya University
AUTHOR
Ola
Zyaan
4
Entomology Department - Faculty of Science - Ain Shams University.
AUTHOR
ORIGINAL_ARTICLE
The honeybees (Apis mellifera L) of Libya
We investigated honeybee populations of A. mellifera in Saharan and coastal locations in Libya to fill the North Africa gap of biogeography and distribution of honeybees, morphologically and using mtDNA analysis. It was found that Libyan honeybees are different, morphologically and genetically, from adjacent subspecies; and majority of Libyan bees (92%) belongs to oriental evolutionary lineage (O). As well as, it was found local impact of imported European honeybees. Further studies may to name the Libyan bees as a separate subspecies.
https://eajbsa.journals.ekb.eg/article_13362_df6353a5d807d9f45232cedfcc6bc1bf.pdf
2013-06-01
39
47
10.21608/eajbsa.2013.13362
Apis mellifera
Libya
Morphometry
lineages
Subspecies 39
Taher
Shaibi
_shaibi@tripoliuniv.edu.ly
1
Zoology Department, Faculty of Science, University of Tripoli. P.O.Box: 13793, Tripoli-Libya
AUTHOR
ORIGINAL_ARTICLE
The impact of some environmental factors on the abundance of mosquitoes larvae in certain localities of Sharkia Governorate in Egypt
Mosquitoes play a major role in diseases transmission and distributions, such as filariasis and malaria. The understanding of environmental factors that affect their larval abundance is a key factor for their control. Thus this study aims at investigating mosquitoes' larval abundance in a region known to be endemic for malaria mosquitoes' related diseases in Sharkia Governorate. Measuring environmental factors were: pH, total dissolved solids “TDS”, turbidity, water and air temperatures, relative humidity, wind speed, water hyacinths, sun light, water flow, and width and depth of drains in relation with these environmental factors on larval abundance. Six mosquitoes species were recorded and identified in different locations from study sites of 9 drains: Abu Kbeer, Dyarb Negm and Al-Zakazik. Culex pipiens, Culex perexiguus, Culex antennatus, Culex pusillus, Culex sinaiticus and Ochlerotatus detritus were found to be dominant in these localities. Culex pipiens was the most dominant species (79.79%) in all localities. Results were shown and discussed in detail.
https://eajbsa.journals.ekb.eg/article_13363_ce999a82f99e8fd76594c2b4e37abbc5.pdf
2013-06-01
49
60
10.21608/eajbsa.2013.13363
Mosquitoes
Survey
Abundance
Environmental factors
Sharkia governorate
Egypt
Arafa
El-naggar
1
Environmental Affair Agency, Regional Branch Office, Sharkia Branch, Egypt
AUTHOR
Shereen
Elbanna
2
Zoology Department, Faculty of Science, Suez Canal University, Ismailia, Egypt
AUTHOR
Ahmed
Abo-ghalia
3
Zoology Department, Faculty of Science, Suez Canal University, Ismailia, Egypt
AUTHOR
ORIGINAL_ARTICLE
Using Low Oxygen Atmospheres to Control Two Insects pests Attacking Historic objects in Egypt
The efficacy of controlled atmospheres of high nitrogen concentration (99.9%) and various carbon dioxide concentrations (25, 50,75and 99.9%) was investigated against adults and larvae of two insects attacking historic objects in Egypt, the black carpet beetle and the cigarette beetle. Also, the effect of temperature and exposures time on the mortality of insects was examined. Results revealed that the efficiency of CO2 and N2 gases was increased with increasing gas concentration, temperature and exposure time. Carbon dioxide gas was more toxic to both insects than nitrogen gas at the same conditions. Larvae of both species were more susceptible than adults to both gases.
https://eajbsa.journals.ekb.eg/article_13364_2a779c916153910ecc9126523911d0d2.pdf
2013-06-01
61
71
10.21608/eajbsa.2013.13364
black carpet beetle- cigarette beetle- low oxygen atmospheres- temperature
Reda
Bakr
redabakr55@gmail.com
1
-Entomology Department, Faculty of science, Ain Shams University Cairo, Egypt - Biology Department, Faculty of Science, King Khalid University, Abha, Saudi Arabia
AUTHOR
Hoda
Abdel Fattah
2
Entomology Department, Faculty of science, Ain Shams University Cairo, Egypt
AUTHOR
Nabila
Salim
3
Center of Researches & conservation of antiquities .Cairo, Egypt
AUTHOR
Nagwa
Atiya
4
Center of Researches & conservation of antiquities .Cairo, Egypt
AUTHOR
ORIGINAL_ARTICLE
Species composition of piercing-sucking arthropod pests and associated natural enemies inhabiting cucurbit fields at the new valley in Egypt
Survey of arthropods associated with cucurbit crops during 2011and 2012 growing seasons at the New valley in Egypt indicated the existence of 28 insect species belong to 25 genera under 20 families of 9 orders. In addition to the two spotted spider mite, Tetranychus urticae Koch and some unidentified species of the true spiders belong to family, Phalangidae.
The important piercing-sucking arthropod pests were the black melon bug, Coridius (Aspongopus) viduatus F.; the melon aphid, Aphis gossypii Glover; the tomato whitefly Bemisia tabaci (Genn.) and T. urticae.
The cucurbit fruit flies, Bactrocera zonata(Saunders), Dacus ciliatus Loew, D. frontalis (Becker) and Dacus sp.( Tephritidae: Diptera ) and Baris granulipennis Tour.(Curculionidae: Coleopatra ) were recorded as pests on the fruits of cucurbit plants in the New Valley.
The common associated natural enemies inhabiting cucurbit fields were, Coccinella septempunctata L.; Chrysoperla carnea Steph., and C. undecimpuctata aegyptiaca Reiche. Ooencyrtus sp. was recorded as a key egg parasitoid of the black melon bug.
https://eajbsa.journals.ekb.eg/article_13365_b8b4c707bdb6a4e18b94b7d7506bc195.pdf
2013-06-01
73
79
10.21608/eajbsa.2013.13365
Piercing-Sucking Arthropod Pests- Cucurbit Fields- Egypt
Gameel
M.
salah_gameel@yahoo.com
1
Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza
AUTHOR
ORIGINAL_ARTICLE
Comparative efficiency of three manners of mixing with media for controlling Trogoderma granarium on wheat grain.
The insect infestation of stored grain and their products is a serious problem over the world since it reduces crop yields, causes contamination for stored products, damages seed germs, carries diseases that effect plants, peoples, animals, and changes the quality of stored products. Six compounds, one organophosphorus, pirimiphose methyl, two biocides; ivomic and Bacillus thuringiensis, one mineral oil (KZ), one insect growth regulator, cascade and one organic acid, formic acid were evaluated against Trogoderma granarium by exposure to treated media and other two ones were layer manner. Based on LC50,s values, data indicated that primiphos-methyl was the most toxic compound with LC50 of 0.135 ug/g, while the least toxic one was the mineral oil with LC50 value of 4300 ug/g grain at 24 h post-treatment. The efficacy of the biocide ivomic followed the effect of pirimiphos-methyl. Data obtained cleared that cascade had a higher toxic effects on the tested insect than the mineral oil formic acid. Batches of grains (wheat grain) were mixed using the three mentioned manners. Based on the behavior of stored product insects which quickly move between grains where contact with the treated media. Results obtained showed that half and one third of dose had more percent of mortality than the expected values. The down position of treated layer indicated the most effect compared to the other two layers (middle and surface).
https://eajbsa.journals.ekb.eg/article_13366_6b4b57c3a794c506ce74317bee9ea68d.pdf
2013-06-01
81
90
10.21608/eajbsa.2013.13366
pest control
Trogoderma granarium- wheat grain
Abo Arab
Abber
1
Department of Stored grain and Product Pest Res. Institute of Plant Protection Res. Dokki – Giza – Egypt.
AUTHOR
A.
Salem
2
Department of Stored grain and Product Pest Res. Institute of Plant Protection Res. Dokki – Giza – Egypt.
AUTHOR
Nariman
El-Tawelah
3
Department of Stored grain and Product Pest Res. Institute of Plant Protection Res. Dokki – Giza – Egypt.
AUTHOR
ORIGINAL_ARTICLE
Comparative study of Cucurbit fly: Dacus ciliatus Loew (Diptera: Tephritidae) infestation on Zucchini squash (Cucurbita pepo L.) at Huraimila and Diraab, Riyadh Region, Saudi Arabia.
Dacusciliatus Loew (Diptera:Tephritidae) infestation was studied on regular and hybrid varieties ofZucchini squash (Cucurbita pepo L.) in summer growing season at two locations,Huraimila and Diraab educational farm, Riyadh, Saudi Arabia. The experimentswere laid down following randomized complete block design (RCBD). Resultsindicated no significant differences between thevarieties for fruit fly (D. ciliatus) infestation withineach location. Huraimila had significantly greater fruit fly infestation as compared toDiraab. In Huraimila, infestation peak was observed in the last week of Maywhereas, in Diraab no significant change was observed during the month of Maybut a significant reduction in infestation was recorded in the mid of June.Results indicated a correlation (r = 0.66 at <0.0001) between average numberof zucchini squashes harvested and number of infested squashes per line.
https://eajbsa.journals.ekb.eg/article_13367_4a7a4dafd0c760ec3f4177168d1e32dd.pdf
2013-06-01
91
96
10.21608/eajbsa.2013.13367
Dacus ciliatus Loew
Diptera
Tephritidae
Infestation
Zucchini squash
Cucurbita pepo L
Variety
locations
Abdulrahman
Aldawood
1
Department of Plant Protection, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia
AUTHOR
ORIGINAL_ARTICLE
Biological aspects and life table parameters of predator gamasid ascid mite, Blattisocius dentriticus (Berlese) (Acari:Gamasida: Ascidae)
The gamasid ascid mite, Blattisocius dentriticus (Berlese) (Gamasida: Ascidae) was reared at 30 + 2 °C and 80+ 5 % R.H. on four different foods (the acarid astigmatid mite, Rhizoglyphus robini (Claparede), two different fungi (Fusarium moniliforme, Botrytis allii) and larvae of Musca domesticate Linnaeus.
The main objective in this study was to examine the possibilities of using gamasid predator mite, B. dentriticus to fed on different foods. Also the obtained result clear that the lowest incubation period of B.dentreticus was noticed for resulted females and males fed on immature of acarid bulb mite (1.3 & 0.95 days), but the longest period recorded when the female and male individuals fed on the fungus F. moniliforme (3.7 & 2.6 days). From the obtained data also, it could be observed that the duration of life cycle for both sexes was affected by the type of food employed. However, adult longevity of B .dentriticus was influenced by the kind of food employed for female, this period lasted (22.2, 36.8, 32.2 and 24.8) days when the individuals fed on aforementioned foods. These periods changed to (19.2, 30, 25.8 and 21.6 days) for males which fed on the tested foods, respectively. The current study indicated that immature of astigmatid mite, R. robini proved to be the most favorable food as it gave the highest reproduction rate (47.8 eggs). On the contrary, the fungus F. moniliforme resulted in the least number of deposited B.dentritucus eggs with an average of (26 eggs). During the total time (life span) of the predatory mite, B.dentreticus, the total number of the tested consumed prey was significantly differed. The number was (80.2 and119 prey) when the predatory mite males and females fed on amixtures of acarid mite R. robini , respectively. While the number of consumed preys was (77, 113.4 prey) when predatory mite fed on M.domesticae larvae, respectively. The calculated life table parameters were, Mean generation time (T) was (10.35, 26.81, 20.4 and14.85) days. The doubling time (DT) was (2.34, 0.0753, 5.23 and 3.483 times). Finite rate of increase (λ) erm was (1.34, 1.09, 1.14 and1.22) times/female/day. Gross reproductive rate (GRR) was (29.58, 12.45, 18.5 and 22.43) times/female/day. It could be generally concluded that immatures of bulb mite, R.robini was the most suitable food for the development and reproduction of predator gamasid mite,B.dentriticus.
https://eajbsa.journals.ekb.eg/article_13368_59bcd3c0eb94be4f44e6e62a3045abdd.pdf
2013-06-01
97
105
10.21608/eajbsa.2013.13368
Blattisocius dentriticus
biological aspects
life table parameters
bicontrol
Prey species (bulb mite
Rhizoglyphus robini
Fusarium moniliforme
Botrytis allii
house fly)
Amira
Mohamed
1
Plant Protection Research Institute, A.R.C, Dokki, Egypt
AUTHOR
ORIGINAL_ARTICLE
Biological and qualitative efficiencies of some insecticidal agents on the cotton leafworm Spodoptera littoralis (Boisd) under lab. conditions.
Four formulation products include Profenofos (OP), Pyriproxyfen (IGR)- Spinosad (Biotic agent) and Light mineral oil (CAPL-2) oil 96.62% E.C. were sprayed by using economy micron ULVA Sprayer in Laboratory with four different concentrations and control treatment with water on castor oil plant leaves and water sensitive paper to determine the spray coverage of each treatment. Results indicated that Profenofos, Pyriproxyfen and Spinosad are the most effective in larval mortality and followed by CAPL-2. Also, Profenofos, Pyriproxyfen and Spinosad are more affected on pupation and pupal weights followed by CAPL-2. The adult emergence affected more at 30, 45 and 60 ppm of Profenofos, 400 ppm of Pyriproxyfen, 350 ppm of Spinosad followed by 200 ppm of CAPL-2 oil. The most efficient compounds are those of Pyriproxyfen and CAPL-2 oil that reduced a sever reduction in the fecundity and fertility followed by Spinosad and Profenofos,similarly longevity was strongly affected by Pyriproxyfen, but Spinosad, CAPL-2 and Profenofos has slightly effect under lab. Conditions Data showed also that, there was a negative correlation between N/cm² and the percentage corrected larval mortality in all treatments, except in the case of CAPL-2 oil, the correlation was positive. No significant differences between VMD of droplet sizes and the percentage corrected mortality. The ration [VMD],[N/cm²] was developed toward a tendency to homogeneity of spray spectrum with increasing the concentration used in all the treatments.
https://eajbsa.journals.ekb.eg/article_314165_a10be496dfc8c9dd4c8c11f662b59ba5.pdf
2013-06-13
107
131
10.21608/eajbsa.2013.314165
Spodoptera littoralis (Boisd.)
Pyriproxyfen (IGR)
CAPL
2 Oil
Profenofos
Spinosad
Ultra low volume and spray quality
Reda
Bakr
redabakr55@gmail.com
1
Department of Entomology, Faculty of Sciences,Ain Shams University
AUTHOR
Noha,
Genidy
2
Department of Entomology, Faculty of Sciences,Ain Shams University
AUTHOR
Mohamed,
Hindy
3
Spray Tech. Res. Dept., Plant Protect. Res. Instit., Agric. Res. Center, Giza, Egypt.
AUTHOR
Nevein,
Ahmed
4
Central Agric. Pest Lab., Agric. Res. Center, Dokki, Giza, Egypt.
AUTHOR
Rehab,
Dar
d.rehabdar@yahoo.com
5
Spray Tech. Res. Dept., Plant Protect. Res. Instit., Agric. Res. Center, Giza, Egypt.
AUTHOR