Evaluation of Chrysoperla carnea for population management of thrips, Thrips tabaci (Lind.); in B.T. cotton crop
Abdul Samad Soomro, Shabana Naz Mazari
The experiment was conducted to evaluate the Chrysoperla carnea Steph. For the management of sucking insect pest in B.T. cotton crop. Experimentation of releasing the Predator in field conditions was carried out in Randomized Complete Block Design (RCBD) with 4 replications. There were four treatments: T1= Chrysoperla carnea natural enemy, T2= Confidor insecticide, T3= B.T. control and T4= NIAB-78 control plot. The treatments were applied at fortnightly intervals stating from 2nd week of June. The data on thrips shown that the maximum population was recorded (8.79 thrips/leaf) in T3, while the minimum population was recorded in T1 (1.5/leaf). The overall, minimum mean population of Thrips was recorded (1.58/leaf) in T1 (Chrysoperla carnea natural enemy) plot, while the overall maximum mean population for Thrips (2.32/leaf) was recorded (B.T. control) plot. The overall maximum mean population of C. carnea (0.39/plant) was recorded in T1 and the minimum population was recorded (0.06/plant) in T2 (Confidor Insecticide Plot). The maximum seasonal mean of bolls (20.84bolls/plant) was recorded in T4 followed by T2 (20.13bolls/plant).
Abdul Samad Soomro, Shabana Naz Mazari. Evaluation of Chrysoperla carnea for population management of thrips, Thrips tabaci (Lind.); in B.T. cotton crop. International Journal of Entomology Research, Volume 5, Issue 2, 2020, Pages 46-49