Journal of Entomological Research
SCOPUSWeb of Science
  • Year: 2017
  • Volume: 41
  • Issue: 1

Effect of some insecticides and biorationals on the abundance of predators in soybean agro-ecosystem

Department of Agriculture Entomology, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani-431 402, Maharashtra, India

*Corresponding author’s E-mail: dr.ashvini24@gmail.com

Online published on 3 April, 2017.

Abstract

highest population of Coccinella septempunctata was observed in untreated control (1.92) followed by Bt (1.70) and Beauveria bassiana (1.66) after first spray whereas after second spray it was observed in untreated control (2.01) followed by Azadirachtin 1500 ppm (1.77) and NSKE 5% (1.74). The population of Chrysoperla arabica was highest in untreated control (1.47) followed by NSKE 5% (0.99) and Beauveria bassiana (0.96) during first spray and after second spray it was observed in untreated control (1.30) followed by Beauveria bassiana (0.94) and Nomuraea rileyi (0.93).

Keywords

Lady bird beetle, Coccinella septempunctata, Chrysopa, Chrysoperla arabica, Natural enemies, NSKE