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العنوان
Ecotoxicological studies on plant extractives of some sinai’s flora against some economic insects /
المؤلف
El-Bolouk, Dareen Mohamed Rifat Mostafa.
هيئة الاعداد
باحث / دارين محمد رفعت مصطفى
مشرف / يـســري محمـد أحمـد
مناقش / عبد الله مرسي العدوي
مناقش / ابوشبانة عبد الرحمن
الموضوع
Environmental Protection. insects.
تاريخ النشر
2014.
عدد الصفحات
122 p. :
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
علم البيئة ، التطور والسلوك وعلم التصنيف
تاريخ الإجازة
1/1/2014
مكان الإجازة
جامعة قناة السويس - حماية البيئة
الفهرس
Only 14 pages are availabe for public view

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from 197

Abstract

The research was conducted at the laboratory of Environmental Protection, Faculty of Environmental Agricultural Sciences, El-Arish, Suez Canal University, Egypt, to study the effect of toxicity extracts of petroleum ether, acetone and methanol to some wild plants in the Sinai (Ader Artemisia monosperma, neem Azadirachta indica, Lantana Lantana camara, nicotine Nicotiana glauca) with mixing some natural oils (sesame, castor, flax, camphor, menthe) against some pests of stored grain (rice weevil Sitophilus oryzae and broad beans beetle Bruchus rufimanus) under laboratory conditions. The results showed that petroleum ether, acetone and methanol extracts of N. gluca achieved the highest toxicity against adults of S. oryzae. petroleum ether and methanol extracts of A. indica and Acetone extract of L. camara caused a highest toxicity rate for adults of B. rufimanus. All natural oils have given toxic effects in addition to methanol extracts (polar solvents) for all plants tested against adult insects from the rice weevil and broad beans beetle. Generally, methanol extract of nicotine plant without mixing gave the highest toxicity gainst the adult of rice weevil, while methanol extract of neem plant and mixed with castor oil induced the highest toxicity action against broad bean beetle compared to the other plant extracts under laboratory conditions. The mortality percentage of rice weevil S. oryzae have increased with 25oC. N. gluca and A. indica worked antifeeding at 15oC and recorded lowest value of grain weight losses compared to other treatments. Different levels of N. gluca, A. indica and L.camara powders were effective in killing adults of rice weevil S. oryzae and showed a high toxicity at different types of storage materials.