Abstract

Surveys conducted during the epidemic defoliation in Sal forests of Kanha Tiger Reserve, Mandla Forest Division, Madhya Pradesh, revealed the occurrence of four insect defoliators belonging to the order Lepidoptera, viz. Caviria sericea Moore (Lymantriidae), Hyposidra talaca Walker (Geometridae) Trabala vishnou Lefroy (Lasiocampidae) and Trypanophora semihyalina Kollar (Zygaenidae). The defoliation period was observed to be rainy season of the year (July-October). Defoliation intensity was noticed to be varied greatly. Complete defoliation of Sal trees was recorded and some ranges were observed to be severely affected. Among the insect species recorded, C. sericea is the first record of occurrence of Sal defoliator.

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