| Titles |
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English :
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Persistance of Bacillus thuringiensis insecticidal activity on cotton foliage
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| Abstract |
A bioassay based on three successive feeding cycles each of five days was adopted, The treated cotton leaf worm were fed first on treated cotton leaves during the first two days of each cycle and then transefered to fresh untreated leaves. The results revealed that a good results for the bio¬effect of each of the five microbial insecticides used on the second, and fourth larval instars of S. littoralis in the first cycle because the effect of long exposure to the bacte¬ria. The effeciency of each of the five microbial insecticides tested were arranged descendingly according to the residual effect expressed as reduction percentages as follows:
The second instar: Bactospeine/thiodan {30.60 %}, Thuricide HP (21.15 %), ABG-6105 (19.9 %), Dipel (19.65 %, and Bactospein {16.18 %}.
The fourth instar: Bactospeine/thiodan (26.20), Dipel (23.99) Bactospeine {21.30), ABG-6105 (17.00), and Thuricide HP (10.77).
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| Publication year |
1987
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| Pages |
35-43
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| Availability location |
معهد بحوث وقاية النباتات - شارع نادي الصيد - الدقي
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| Availability number |
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| Organization Name |
Plant Protection Research Institute (PPRI)
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| City |
الاسماعيلية
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| serial title |
The second national conference of bests and diseases of vegetable and fruit crops in Egypt
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| Author(s) from ARC |
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| External authors (outside ARC) |
حمدي برهان السعدني
كلية الزراعة-جامعه عين شمس
جورج نصر الله رزق
كلية الزراعة-جامعه عين شمس
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| Agris Categories |
Protection of plants - General aspects
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AGROVOC
TERMS |
Bacillus thuringiensis.
Foliage.
Gossypium.
Pesticidal properties.
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| Publication Type |
Conference/Workshop
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