To evaluate the relative toxicity and residual toxicity of leaf extracts against stored grain pest

Abstract

Sitophilus oryzae is one of the most destructive insects of stored grains. Various insecticides can be used to control the Sitophilus oryzae. But chemical pesticides are harmful for the humans and livestock. Use of Biopesticides reduces the health hazards and do not harm the environment. Plant products are easily available and are economic too. In the present investigation two commonly available leaves viz Eucalyptus and Mentha are used as Botanical. In the present investigation petroleum ether extract of Eucalyptus sp. and Mentha sp. are used against Sitophilus oryzae. Both extracts provided promising results to control the Sitophilus oryzae in wheat.