Vol. 11, Special Issue 11 (2022)

Author(s):
Rohit Sharma and Dr. Ram Keval

Abstract:
Agricultural Research Farm, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, monitored Helicoverpa armigera (Hübner) male moths using pheromone traps in long-term pigeon pea throughout 2019-20. Pheromone traps have been used to track spatial land differences in the abundance of male moths. [Helicoverpa armigera (Hubner)] in pigeon pea cultivation in large plots experimental area at Agriculture Research Farm, Institute of Agricultural Sciences at Banaras Hindu University U.P. 2019-20. The pheromone traps were mounted on 1 January 2020 @ 1 ha-on. Operated in module during the investigation trap and the data obtained from the pheromone trap catches were recorded once a week. The septa pheromone was impregnated with 2 mg pheromone and after every 18 days was substituted with one new. The pheromone trap for trapping the maximum number of male moths was set up at a height of 0.5 m above the crop canopy. At weekly intervals the moth caught in those traps was removed and killed. Once the pheromone trap captures reached 4 moth trap-1 the egg and larval counts were begun. In general monitoring of [H. armigera (Hubner)] on pigeon pea genotype field moth catches minimum to maximum population within the following week minimum number of moth catches in 2^nd and 15^th SMW (0.50 percent) excluding 1^st SMW and maximum number of moth catches in 10^th SMW (6.25 percent) followed by other week respectively 7^th, 8^th, 9^th, 11^th SMW maximum number of moth catches in the field respectively. Correlation analysis with meteorological parameters revealed that the emergence of H. armigera was significantly associated with maximum temperature, minimum temperature, wind speed, and sunshine, whereas evaporation was significantly associated with month activities.