Document Details
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Document Type |
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Article In Journal |
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Document Title |
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Efficiency of azadirachtin, a chitin synthesis inhibitor on growth, development and reproductive potential of Tribolium confusum after adult treatment كفاءة مثبط الكيتين (الأذرداكتين) على نمو ، تطور والكفاءة التناسلية لخنفساء الدقيق (Tribolium confusm) (Coleoptera : Tenebriodae) بعد معاملة الطور البالغ |
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Subject |
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Efficiency of azadirachtin, a chitin synthesis inhibitor on growth, development and reproductive potential of Tribolium confusum after adult treatment. |
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Document Language |
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English |
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Abstract |
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Abstract
Azadirachtin, a neem derivative, which considered as insect growth regulator due to its chitin inhibitor activity was tested topically at four doses (0.5, 1, 1.5 and 2 µg / insect) on adults of Tribolium confusum (Coleoptera: Tenebrionidae) and first evaluated on fecundity, hatchability and viability of eggs, longevity and morphometric of oocytes. Our results show that the compound reduce the longevity and the fecundity. Generally, treatment with azadidrachtin affected growth and development of oocytes and egg-viability as shown by calculating the number of oocytes per ovaries and the size of basal follicle. The width of the follicle has not been affected significantly by these treatments. In the second group of experiments, this IGRs don’t induce significant reduction in percentage of hatchability, the hatching rate of eggs laid by F1 females was not affected by the treatment (F=2.86, DF=99, P=0.5), but it affect very significantly the viability rate of eggs laid by first female generation F1 (F=7.5, DF=99, P>0.0001). However, the azadirachtin lengthened very significantly the total duration of life cycle. Duration of the embryonic and post embryonic development of eggs laid by treated female increase when the concentration varied from 0 to 2 µg / µl. This data confirm the efficiency of growth regulators derived from neem plant, on the development of stored product insect pests. |
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ISSN |
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1319-0989 |
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Journal Name |
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Arts and Humanities Journal |
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Volume |
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8 |
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Issue Number |
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5 |
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Publishing Year |
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1432 AH
2011 AD |
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Article Type |
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Article |
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Added Date |
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Wednesday, May 23, 2012 |
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Researchers
| نجاة علي خاطر | Khatter, Najat Ali | Investigator | Doctorate | najat.khatter4@gmail.com |
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