Vol. 11, Special Issue 9 (2022)

Author(s):
Rohit Sharma, Ram Keval, Shubh Pravat Singh Yadav and Bishnu Yadav

Abstract:
The pigeon pea was infested with several insect pests at various stages of crop growth. Out of which the incidence pattern of L. boeticus was studied. The result of the investigation about the “Screening of pigeon pea [Cajanus cajan (L.) Mill sp. blue butterfly], L. boeticus (L.) (Lepidoptera: Lycaenidae) against in long-duration Pigeonpea genotypes” was carried out in 2018-19 at the Agricultural Research Farm, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi. This insect was studied during the reproductive phase of the crop during 2018-19. L. boeticus was observed at the 4th standard week with the first occurrence of a blue butterfly. Population significantly differentiated among the genotypes screened in the genotype AVT1-707 with a maximum population of (0.14 larva/plant) & AVT2-904 with the population (0.04 larva/plant) in the first week. The larval population of L. boeticus persisted in all genotypes from the 4th standard week through to the 12th standard week of 2018-19. The mean population of the blue butterfly was considerably different and ranged from in various genotypes. (0.20 larva/plant) in AVT2-903 to (0.27 larva/plant) in MAL-13 (AVT1) & AVT1-704. In AVT1-704 the cereal yield of different genotypes was from 617 kg/ha to 1434 kg/ha with the AVT1-708 genotype.