Attraction of Sucking Pests on Different Coloured Sticky Traps in Bt Cotton (Gossypium hirsutum L)

Abstract

In cotton ecosystem, number of insect pests simultaneously occur and cause enormous damage to crop. There are many sampling methods that are being used to monitor insect pests and among them the sticky traps are widely used to sample insect worldwide. Hence, studies on trapping efficiency of coloured sticky trap against sucking pests was carried out during 2022 and 2023 at S. D. Agricultural University, Sardarkrushinagar, Gujarat, India. The data on aphid trapping revealed that population of aphid per trap was ranged between 1.90 to 7.23 aphids per trap. The highest number of aphid capturing was recorded from yellow coloured sticky trap (7.23 aphids/trap) and proved as the most effective sticky traps against aphids. Yellow coloured sticky trap significantly attracted more number of jassids with a population of 13.56 jassids per trap and found most effective. The data on whitefly trapping indicated that population of whitefly was ranged between 1.04 to 5.45 whiteflies per trap. The highest number of whitefly capturing was recorded from yellow coloured sticky trap (5.45 whiteflies/trap) and registered as the most effective sticky traps. The data on thrips trapping revealed that population of thrips per trap was varied from 1.40 to 8.38 thrips per trap. The maximum 8.38 thrips per trap were attracted to blue coloured sticky trap and it was statistically at par with yellow coloured sticky trap (7.51 thrips/trap).