LATENT EFFECT OF IGRs ON EGG-MASSES OF SPODOPTERA LITTORALIS (BOISD.) TREATED WITH THREE IGRs IN EGYPT | ||||
Egyptian Journal of Agricultural Research | ||||
Article 12, Volume 74, Issue 1, March 1996, Page 115-122 PDF (1.71 MB) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/ejar.1997.427329 | ||||
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Authors | ||||
GALAL M. MOAWAD1; IBRAHIM E. M. SALEM2; WAHED M. H. DESUKY1; SAMY A. A. RASLAN1 | ||||
1Plant Protection Research Institute, Agricultural Research Centre, Dokki, Giza, Egypt | ||||
2Plant Protection Department, Faculty of Agriculture, Zagazig University, Egypt | ||||
Abstract | ||||
Three new insect growth regulators namely, Diafenthiuron. Bu-profezin, and Pyriproxyfen were evaluated against the egg stage of S.littoralis. Egg-masses were used to evaluate the ovicidal effect of IGRs and also to study the latent effect using dipping technique in 500 ppm solutions. All the tested IGRs decreased hatchability. the most active compound as ovicide was Buprofezin which recorded 27.3% reduction of hatchability and 30.5 mortality in hatched larvae. Also, the highest reduction in percentage of pupation were recorded in eggs treated with Buprofezin as compared with the untreated eggs. | ||||
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