Efficiency of Certain Evaluated Igrs and Conventional Insecticides on the Incidence of Common Lepidopterous Insect- Pests of Cotton Plant

H.A., Awad; El-Naggar, A.Z.; EL-Bassouiny, H. M.; M. Tadros, Haity

doi:10.21608/asejaiqjsae.2014.2581

Efficiency of Certain Evaluated Igrs and Conventional Insecticides on the Incidence of Common Lepidopterous Insect- Pests of Cotton Plant

Document Type : Original Article

Authors

Plant Protection Res., Institute Agric. Res. Centre., Alex., Egypt

10.21608/asejaiqjsae.2014.2581

Abstract

Field studies were conducted in El-Beheira Governorate during the growing cotton season of 2013 to investigate the effect of four IGRs compounds (Ageron^®, Match^®, Dimilin^®and Topron^®) against the cotton leaf worm, Spodoptera litorallis (Boisd); six pyrethroids; (Icton^®, Lamda-Z^®, Pulsar^®, Buldock^®, Sumi-alfa KZ^® and Fenerate-S^®) in addition to, Dora^® as an organophorous compound against the cotton bollworms; Pectinophora gossypiella (Saund.) and spiny bollworm Earias insulana (Boisd.), besides, the side effects of these tested compounds on cotton yield was also studied.
Results indicated that Topron^® gave higher reduction of the cotton leafworm infestation amounted to 85.7 % followed by Match^®(83.5%), then, Ageron^® (82.1%). For the cotton bollworm, the higher reduction was recorded with Sumi-alfa KZ^® (83.60%) followed by Lamda-Z^® (83.2%), while, Buldock^® gave a more lower reduction of 80.8%. The evaluated percentages of reduction values for the other evaluated insecticides were 82.6% for Icton^®, 82% for Pulsar^®, 82.1% for Dora^® and 81.1% for Fenerate-S^®. All the tested insecticides increased the cotton yield in comparison to the untreated check.