Impact of inoculative releases of Trichogramma chilonis for Helicoverpa armigera and Hippodamia variegata for Myzus persicae in ecologically engineered tomato ecosystem of Kashmir

Field experiments were conducted to determine the impact of inoculative releases of two natural enemies, Trichogramma chilonis and Hippodamia variegata for the suppression of Helicoverpa armigera and Myzus persicae, respectively in ecological engineering practiced tomato field of Kashmir. The application of T. chilonis @150, 000 per ha significantly reduced H. armigera population (90.0 %) as compared to the only ecological engineering practiced field (62.46%). H. variegata @ 25,000/ha significantly suppressed M. persicae population with a reduction of 90.38% as compared to the only ecological engineering practiced field (60.64%). The study indicate that T. chilonis @150, 000/ha and H. variegata @ 25,000/ha significantly managed the population of H. armigera and M. persicae, respectively in ecological engineering practiced tomato field helps in avoidance of pesticidal applications.