DELAYED EFFECT OF CERTAIN INSECTICIDES ON SOME BIOLOGICAL ASPECTS OF THE PINK AND SPINY BOLLWORMS
EL-METWALLY, H., EMARA, S., AMER, R. (2007). DELAYED EFFECT OF CERTAIN INSECTICIDES ON SOME BIOLOGICAL ASPECTS OF THE PINK AND SPINY BOLLWORMS. EKB Journal Management System, 85(3), 805-820. doi: 10.21608/ejar.2007.226355
HAMDY E. EL-METWALLY; SAEYD A. EMARA; REDA A. M. AMER. "DELAYED EFFECT OF CERTAIN INSECTICIDES ON SOME BIOLOGICAL ASPECTS OF THE PINK AND SPINY BOLLWORMS". EKB Journal Management System, 85, 3, 2007, 805-820. doi: 10.21608/ejar.2007.226355
EL-METWALLY, H., EMARA, S., AMER, R. (2007). 'DELAYED EFFECT OF CERTAIN INSECTICIDES ON SOME BIOLOGICAL ASPECTS OF THE PINK AND SPINY BOLLWORMS', EKB Journal Management System, 85(3), pp. 805-820. doi: 10.21608/ejar.2007.226355
EL-METWALLY, H., EMARA, S., AMER, R. DELAYED EFFECT OF CERTAIN INSECTICIDES ON SOME BIOLOGICAL ASPECTS OF THE PINK AND SPINY BOLLWORMS. EKB Journal Management System, 2007; 85(3): 805-820. doi: 10.21608/ejar.2007.226355

DELAYED EFFECT OF CERTAIN INSECTICIDES ON SOME BIOLOGICAL ASPECTS OF THE PINK AND SPINY BOLLWORMS

Egyptian Journal of Agricultural Research
Article 3, Volume 85, Issue 3, September 2007, Page 805-820  XML PDF (4.54 MB)
Document Type: Original Article
DOI: 10.21608/ejar.2007.226355
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Authors
HAMDY E. EL-METWALLY1; SAEYD A. EMARA2; REDA A. M. AMER2
1Depart of Economic Entomol. and Pesticide Faculty of Agriculture, Cairo University, Giza, Egypt
2Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt
Abstract
The present work was planned to evaluate the delayed effect of certain insecticides, cypermethrin, esfenvalerate, fenpropathrin, cyanophos, methomyl, diflubenzuron and Deenate on the eggs (1-3 days old eggs) and larval stages (newly hatched and 10- day old larvae of the pink bollworm, Pectinophora gossypiella (Saund.) and spiny bollworm, Ferias insu/ana (Boisd.). The following biological aspects were studied for the alive larvae after treatment:Larval duration, pupal duration, larval and pupal mortality percentages, pupal weight (mg.) and pupal reduction percentage. Delayed effect of insecticides were recorded as follows: pr-eoviposition, oviposition & post-oviposition periods, adult longevity, egg laying rate (no. of eggs/female), percentages of egg hatchability, control of hatchability, fecundity and sterility. Fenpropathrin: gave the highest effect on larval duration, pupal weight for male & female, adult longevity, post-oviposition period, egg laying rate, percentages of hatchability, fecundity and sterility. While, Deenate gave the highest delayed effect on larval and pupal durations, percentages of larval and pupal mortality, pre-oviposition and oviposition periods, percentages of egg hatchability, control of hatchability and sterility. The other tested insecticides caused intermediate delayed effect on the treated stages of PBW and SBW.
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