Abd El Ghaffar,, M., Ibrahim,, I., Abd El all, A., Diab, O. (2007). EFFICACY OF Bacillus thuringiensis VAR. KURSTAKI (DIPEL 2X), NEEM EXTRACT AND CHLORPYRIFIOS-METHYL (RELDAN) AGAINST COTTON BOLLWORMS. Journal of Plant Protection and Pathology, 32(1), 703-709. doi: 10.21608/jppp.2007.219415
M. M. Abd El Ghaffar,; I. L. Ibrahim,; A. A. Abd El all; O. I.A. Diab. "EFFICACY OF Bacillus thuringiensis VAR. KURSTAKI (DIPEL 2X), NEEM EXTRACT AND CHLORPYRIFIOS-METHYL (RELDAN) AGAINST COTTON BOLLWORMS". Journal of Plant Protection and Pathology, 32, 1, 2007, 703-709. doi: 10.21608/jppp.2007.219415
Abd El Ghaffar,, M., Ibrahim,, I., Abd El all, A., Diab, O. (2007). 'EFFICACY OF Bacillus thuringiensis VAR. KURSTAKI (DIPEL 2X), NEEM EXTRACT AND CHLORPYRIFIOS-METHYL (RELDAN) AGAINST COTTON BOLLWORMS', Journal of Plant Protection and Pathology, 32(1), pp. 703-709. doi: 10.21608/jppp.2007.219415
Abd El Ghaffar,, M., Ibrahim,, I., Abd El all, A., Diab, O. EFFICACY OF Bacillus thuringiensis VAR. KURSTAKI (DIPEL 2X), NEEM EXTRACT AND CHLORPYRIFIOS-METHYL (RELDAN) AGAINST COTTON BOLLWORMS. Journal of Plant Protection and Pathology, 2007; 32(1): 703-709. doi: 10.21608/jppp.2007.219415
EFFICACY OF Bacillus thuringiensis VAR. KURSTAKI (DIPEL 2X), NEEM EXTRACT AND CHLORPYRIFIOS-METHYL (RELDAN) AGAINST COTTON BOLLWORMS
1Dept. of Plant Protection, Faculty of Agric., Al-Azhar Univ.
2Bollworms Res. Dept., Plant Protection Research Institute.
Abstract
The efficacy of Bacillus thuringensis subsp. Kurstaki (Dipel 2X), neem extract (Azadirachtin) and reldan (Chlorpyrifios-methyl) for management of cotton bullworms (Earias insulana “Boisd” and Pectinophora gossypiella “Saunders”) were studied under field condition at Shubrakheit region, Behira Governorate during 2004-2005. Dipel 2X (200 g/Fed.) was equally effective as the chemical insecticide (Reldan) to protecting the fruiting flowers and green bolls of the cotton variety “Giza 88”. Neem extract was less effective than Dipel 2X compared with untreated control. The highest yield of cotton was obtained by using the chemical insecticide treatment followed by Dipel 2X and neem extract compared with untreated control. Dipel 2X persisted well under the field conditions with identical half life time of 10 days in cotton fields compared to Reldan and neem extract.
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