Seasonal Incidence and Control of Aphid Complex on Kinnow

The studies conducted on seasonal incidence and chemical control of aphid complex on Kinnow revealed that three aphid species, viz., Toxoptera aurantii, Aphis gossypii and Myzus persicae were active from first week of February to first week of May. Both these species along with A. gossypii were again active from last week of August to second week of November. The abundance of T. aurantii and M. persicae was 55 and 45% during February to May while all three species, T. aurantii, M. pers~cae and A. gossypii existed in the ratio of 21:31:49, respectively, from August to November. Rainfall was found to reduce the aphid population significantly. Imidacloprid (0.008%), carbosulfan (0.075%), dimethoate (0.075%), monocrotophos (0.05) and oxydemeton methyl (0.075%) were found effective in reducing the aphid population to an extent of 96.7–100%.