National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Solenopsis mealy bug Phenacoccus solenopsis Tinsley has emerged as a major threat to cotton cultivation in India since past few years. Aenasius areizonesisi Girault has been found to parasitize solenopsis mealy bug. The present study results showed during the months of April to June 2009, parasitization of P. solenopsis was found to be ranging from 16.4 per cent to 66.66 per cent on the alternate host plants i.e. Hibiscus rosa sinensis, Parthenium hysterophorus, Acyranthes aspera, Abutilon indicum, Xanthium strumarium, Datura metel and on cotton sprouts etc. From July onwards, the mealybug colonies started appearing on the main cotton crop, the parasitization also increased gradually from 47.43 to 55.66 per cent during July to August. It was concluded from the above studies that Aenasius arizonesis can be a potential agent for the biological control of solenopsis mealybug, Phenacoccus solenopsis. A. arizonesis can effectively check P. solenopsis population surviving a wide range of temperature conditions causing upto 76.62 per cent parasitization in the crop season and 74.82 per cent during the off-season.
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