Abstract

The present study was conducted to evaluate the efficacy of six commercial insecticides namely Lampada super, Pstoxkz, Engeo, Cygron, Chlorosan and Feroban against pink bollworm, Pectinophoragossypiella (saunders) and spiny bollworm,Eariasinsulana (Boisd.)at Aga district, Dakahlia Governorate, Egypt during 2010 and 2011 cotton growing seasons. The obtained results indicated that, all tested insecticides exhibited great reduction in pink bollworm and spiny bollworm infestation. The treatments could be arranged descendingly according to the general reduction averageof two seasonsas follows; Pstoxkz (94.2%), Cygron (89.3%), Engeo (88.1%), Feroban (87.5%), Chlorosan (86.7%) and Lampada super (77.5%) against pink bollworm; and were Cygron (97.6%), Pstoxkz (95.1%), Chlorosan (90.9%), Engeo (87.4%),Lampada super (86.1%) and Feroban (85.8%) against spiny bollworm.

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