Author(s): Kiran.B, Lalitha.V, Raveesha.K.A
Insecticidal activity of the bioactive compound 2H-Furo[2,3-H]-1- benzopyran-2-one isolated from the seeds of P. corylifolia against S. oryzae was observed at 1000ppm and 1500ppm concentration .50% of the seeds got infected by insects at 250 and 500ppm concentration. The number of insects gradually increased with increase in storage period from 0 to 120 days. In treated seeds at 1000 and 1500ppm concentration complete inhibition of insects was observed without altering the nutritive value. At 250 and 500ppm concentration, significant insecticidal activity was observed. Hence the percent mortality was increased with increase in concentration without biodeterioration