| Titles |
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English :
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Comparative biological activity of the residual bacillus thuringiensis strains against a susceptible laboratory strain of pink bollworm, pectinophora gossypiella saunders, (lepidoptera:gelechiidae)
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| Abstract |
We evaluated effects of Bacillus thuringiensis subspp. aizawai and kurstaki, in the same concentration as those isolated from sprayed plants at 0, 1, 3 and7 days post spraying, on the biological and reproductive potential factors of Pectinophora gossypiella. Our investigation showed that mortality percentages for larvae and pupae were reduced at the tested concentrations isolated from the one to seven days after treatments. Also, a prolongation of larval durations as males and females were significant to control ones. The percentage emergence and malformation of adults seemed not clearly affected due to the tested concentrations. Inconsistent significance for the adult longevity, pre-oviposition period and oviposition period between some concentrations of both B.thuringiensis strains were recorded. Generally, egg production showed a significant increase as concentrations decreased for both B. thuringiensis strains. Regarding percentage of hatching inconsistent relation between the different concentrations of both B. thuringiensis subspp. aizawai and kurstaki, were recorded and this may be due to malformation of adults. However, a significant reduction in some of these parameters at different concentrations of both B. thuringiensis strains was recorded compared to control
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| Publication year |
2006
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| Pages |
243-248
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| Availability location |
(معهد بحوث وقاية النباتات)
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| Availability number |
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| Organization Name |
Plant Protection Research Institute (PPRI)
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| City |
Punjab
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| serial title |
Research Journal of Agriculture and Biological Sciences
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| Web Page |
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| ISSN |
1816-1561
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| Author(s) from ARC |
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| Agris Categories |
Protection of plants - General aspects
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AGROVOC
TERMS |
Bacillus thuringiensis.
Biological development.
Pectinophora gossypiella.
Residual effects.
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| Publication Type |
Journal
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