Parachrysocharis javensis Girault (Hymenoptera: Eulopidae) - An Effective Egg Parasitoid of Sugarcane Planthopper Pyrilla perpuslla in the Wet Zone of Sri Lanka

Abstract

Parachrysocharis javensis is an effective egg parasitoid of Pyrilla perpusilla in the west zone of Sri Lanka. This study was conducted through out a period of two years to determine the percentage parasitism of this parasitoid and factors affecting it. The percentage egg cluster parasitism was positively correlated with the number of egg clusters present in the field. It was also confirmed that percentage parasitism was negatively correlated with rainfall and humidity and positively correlated with daily minimum and maximum temperature.