C. V. Sivakumar ¹, M. D. Bhaskaramanian ¹, S. Balasaraswathy ¹

Affiliations
1 Department of Entomology, Agricultural College and Research Institute, Madurai, 625 104, IN

Abstract

The ischolar_main-knot nematodes, Meloidogyne incognita, M. arenaria and to a lesser extent M. javanica affect brinjal in Tamil Nadu, India causing an yield loss of 20-30%. The nematodes infect the crop invariably in the nursery, since farmers use repeatedly the same field for this purpose.

Keywords

Meloidogyne arenaria, Paecilomyces lilacinus, Biological Control.

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C. V. Sivakumar ¹, S. Balasaraswathy ¹

Affiliations
1 Department of Entomology, Agricultural College and Research Institute, Madurai - 625 104, India, IN

Abstract

Spiders are recognised as important predators of insect pests of crops (Yasumatsu and Torii, 1968; Samal and Misra, 1975; Hokyo et al., 1976) and are commonly met with in the agro-ecosystems of the tropics. The effect of entomogenous nematodes on these beneficial organisms is not known. An experiment was conducted in the laboratory to study the reaction of two species of spiders viz., Stegodyphus pacificus Pocock (Eresidae : Araneae) and Lycosa pseudoannulata (Bosenberg and Strand) (Lycosidae : Araneae), occurring in the orchards and rice fields, respectively, to the entomogenous nematode, Steinernema carpocapsae (DD - 136 strain).

Keywords

Entomogenous Nematode, Steinernema carpocapsae, Spiders.

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