Randeep Kumar Kushwaha*, Sonali Deole, Hemkant Chandravanshi and Navneet Rana
Department of Entomology, College of Agriculture, IGKV, Raipur,
Chhattisgarh-India-492007
Email: rndp2010@gmail.com
Received-19.09.2015, Revised-26.09.2015
Abstract: Evaluation of insecticides against sucking pest like aphid in okra crop was conducted Department of Entomology, CoA, IGKV, Raipur during Rabi2013-14. During first of spraying, the lowest aphid population was recorded (4.91/plant) against treatment T6and highest in T1 (9.41/plant) within fifteen day of spraying. Whereas, the aphid population was also exhibited lowest (5.92/plant) in T6and treatment T1 observed highest (9.77/plant) during second of spraying. The mean of first and second of spraying theaphid population (5.42 aphid/ plant) was observed minimum in foliar application of treatment T6 i.e. spinosad 45EC @75g a.i./ ha followed by treatment T4 i.e.emamectin benzoate 5 SG@13 g a.i./ha(6.46aphid/ plant).The maximum 9.60 aphid/ plant was recorded in treatment T1i.e. emamectin benzoate 5 SG@8 g a.i./ha. Thus, during this period spinosad 45EC was found to be best effective treatment and which minimized the aphid populationwhileemamectin benzoate 5 SG@8 g a.i./ha was noticed the least effective as compared to among all treatments.
Keywords: Evaluation of insecticides, Okra aphid, Aphis gossypii, Sucking pest of okra
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