Department of Entomology, Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur-313 001, Rajasthan, India
*Corresponding author's E-mail: akmeenaentomology@gmail.com
Online published on 26 October, 2018.
Ten different treatments were evaluated against natural enemies of mustard aphid, Lipaphis erysimi (Kalt.). The maximum population of coccinellid beetles with a mean of 4.97 and 4.83 per plant was recorded in the treatments with two releases of C. septumpunctata @ 5000 grubs/ha. Similarly, the Chrysoperla sp. population was maximum in the treatment comprising two releases of C. zastrowi @ 40, 000 grubs/ha, with a mean of 3.83 and 3.65 per plant. The aphid parasitoid, D. rapae showed maximum activity in the control with a mean of 27.81 and 27.40 per cent parasitization. The lowest population of these natural enemies was observed in the treatment schedule comprising two sprays of imidacloprid 17.8 SL (0.005%).
Insecticides, mustard aphid, natural enemies, population, treatment
