Abstract
Three hymenopteran chalcidoid parasitoids viz., Euderus sp. (Eulophidae), Torymus sp. (Torymidae) and Systasis dasyneurae Mani (Pteromalidae) were observed as ectoparasitiods of maggots of pigeon pea pod fly Melanagromyza obtusa (Malloch). Parasitism increased with pest population irrespective of the parasitoid species. The peak activity of Euderus sp. was observed during 5th SMW (52.38%), whereas Torymus sp. attained its peak activity during 3rd SMW (61.54%) and S. dasyneurae during 4th SMW (4.76%) on the pigeon pea genotype ICP-8863. The maximum parasitism by Euderus sp. was observed on the genotype BSMR-736 (25.53%) and Torymus sp. on ICP-8863 (12.16%). Parasitisation showed negative correlation with maximum and minimum temperature and wind velocity, and it was more on the susceptible genotypes.
Published Version
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