Egg removal device for the management of three stored product pests

  • S. A. Jayaprakash Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore – 641 003, India. Email: entojayaprakash@yahoo.com
  • S. Mohan Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore – 641 003, India
  • K. Ramaraju Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore – 641 003, India

Abstract

Investigations were carried out to assess the efficiency of pulse beetle egg removal device in the removal of eggs of Tribolium castaneum and Rhyzopertha dominica from infested sorghum, wheat, maize and paddy grains and the eggs of Lasioderma serricorne from infested coriander. The efficiency of the device or the impact of rotation was assessed based on the number of offspring adults emerged and percentage reduction in adult emergence compared to untreated controls. Rotation of the grains for three consecutive days for 15 min/day gave the highest reduction in the emergence of offspring adults. Reductions in emergence of T. castaneum and R. dominica were found to be 54 and 57% in sorghum; 69 and 69% in wheat; and 71 and 76% in maize, respectively. There was a 77% reduction in L. serricorne on coriander seed, and a similar level for R. dominica on paddy.

Keywords: Pulse beetle egg removal device, Tribolium castaneum, Rhyzopertha dominica, Lasioderma serricorne
Veröffentlicht
2010-09-02