Biological Control of Rice Pests in 'kole' Lands of Kerala


Affiliations

  • Kerala Agricultural University, Department of Entomology, Vellanikkara, Kerala, 680 656, India
  • National Bureau of Agriculturally Important Insects, Bangalore, Karnataka, 560 024, India

Abstract

Large scale demonstrations of biological control based integrated pest management (BIPM) practices were carried out in the 'kole' lands of Koorkkencherry Panchayath of Thrissur district in Kerala and compared with conventional farming. Trichogramma japonicum was released against rice stem borer and leaf folder @ 1 lakh ha−1. The results showed that dead heart and white ear head incidences were on par in the two systems of cultivation. In the case of leaf folder significantly lower incidence was observed in BIPM. There was no significant difference in grain yield. The population of predators like coccinellids and spiders were significantly higher in BIPM.

Keywords

Biological Control, Rice Pests, ‘kole’ Lands.

Subject Discipline

Agriculture Sciences

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