Role of Pupal Parasitoids in the Natural Suppression of the Coconut Caterpillar Nephantis Serinopa Meyrick

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Date

1981

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Abstract

Evaluation of the intensity of natural parasitisation of Nephantis serinopa pupae in the Quilon and Alleppey districts of Kerala State for two years (1979 and 1980) revealed that more than 50% of natural pest suppression was due to the pupal parasitoids, of which the chalcidids Brachymeria spp. were the major ones and among them, B. nosatoi was the most dominant species followed by B. nephantidis. Activity of B. nosatoi was more during the summer season, which is also the peak period of the pest. The intensity of natural parasitisation by Trichospilus pupivora (Eulophidae) was meagre, being 1.6% only.

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J.Plantn.Crops 1981 v-9 i-2 p-84-87

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