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Field Efficacy of Insecticides in the Management of Pomegranate Aphid, Aphis punicae (Passerini)

Author:
Kambrekar, D. N., Biradar, A. P.
Source:
Acta horticulturae 2015 no.1089 pp. 153-159
ISSN:
0567-7572
Subject:
Aphis (Aphididae), fruits, imidacloprid, pomegranates, spaying, thiamethoxam, trees
Abstract:
Field evaluation of new insecticide molecules for the management of pomegranate aphid, Aphis punicae was carried out at Bijapur-Karnataka for two years during 2010 and 2011. The study revealed that, among the different insecticide molecules, thiamethoxam 25 WG at 0.2 g/L recorded highest reduction in aphid population after both spray intervals followed by Imidacloprid 70 WG at 0.3 g/L. During the first year, the mean reduction in aphid population with thiamethoxam was 90.19 and 94.10% after the first and second spay, whereas during the second year, the reduction was to the extent of 91.19 and 93.42%, respectively. Similarly, during 2010, imidacloprid recorded 87.92 and 90.39% reduction in aphid population after first and second sprays whereas during 2011 it was 89.73 and 93.42%. The trees sprayed with thiamethoxam (9105 kg/ha) and imidacloprid (9038 kg/ha) have recorded highest quantity of marketable pomegranate fruits. Thiamethoxam and imidacloprid recorded highest gross returns, net returns and maximum B:C ratio during both the years of investigation.
Agid:
4810920