Journal of Entomological Research
SCOPUSWeb of Science
  • Year: 2010
  • Volume: 34
  • Issue: 3

Evaluation of botanical pesticides against early shoot borer and internode bore, Chilo infuscatellus Snellen in sugarcane

  • Author:
  • N. Venugopala Rao, Ch. V. Narasimha Rao, B. Bhavani, N.V. Naidu
  • Total Page Count: 2
  • Page Number: 203 to 204

Department of Entomology, Regional Agricultural Research Station, Anakapalle-531 001, Andhra Pradesh, India.

*Corresponding author's E-Mail: nvgrao@yahoo.co.in

Abstract

The results indicated that cumulative incidence of early shoot borer varied from 26.57% in neemazole 0.5% to 41.77% in untreated control. The intensity of internode borer varied from 1.50% in Ageratum conyzoides 1.0% to 4.23% in Neem cake application @ 2t/ha. Per cent juice sucrose varied from 16.20 in untreated control to 17.73 in the plot where neemazole 0.5% is sprayed. The cane yield varied from 72.58 t/ha in the plot where neem cake is applied @ 2t/ha to 92.58t/ha in neemazole 0.5% applied plot. Among all the treatments imposed neemazole 0.5% was proved to be effective in reducing the incidence of early shoot borer and internode borer and also registered more cane yield.