Parasitism levdl by Servillia transverse Tothili on Eutectona mactiaeralis (Hubner) larvae on teak leaves

摘要

Teak (Tectom grnndis L.) (family Verbenaceae) is a potential tree species of high quality tropical timber (Tewari, 1992), Leaf skeletonizer, Eutectoiui maclincrnlis (Walker) (syn, Pyrausta nincluicrnlis, Hnpniin nuicliacrnlis (Beeson, 1941), is the most pernicious pest of teak responsible for epidemic defoliation regularly in nurseries, plantations and natural forests of all teak growing areas (Mathur, 1960), including Madhya Pradesh (Khan et al., 1998; Joshi ct al., 2001 and Roychoudhary ct al, 2003), Larvae of this insect feed only on the fleshy leaf tissues, leaving all the veins intact, thus it affects adversely the growth and vigour, besides causing certain abnormalities, resulting in both qualitative and quantitative loss in timber production(Beeson, 1941), The predators and parasitoid of E. nuichncrnlis found in India have been recorded.