author(s)
Soni Kumari, Deepak Verma, JP Pandey and Dinesh Kumar

abstract
Dysdercus koenigii is a serious pest of cotton and other plants of economic importance. It was collected from the field and was observed that they were infested with a new tachinid parasitoid. This parasitoid was preserved and identified as Phasia varicolor. Dysdercus koenigii were observed for change in their fecundity and fertility due to parasitoid infestation. Their unhealthy nymphs were subjected to survival analysis and antioxidant (ascorbic acid) treatment. Based on the parameters studied, it was concluded that Phasia varicolor, a tachinid parasitoid might prove to be an effective biocontrol agent vice insecticides for the Dysdercus koenigii.