Vol. 12, Issue 10 (2023)

Author(s):
Kailash Kumar, Alpana Kumhare, R Bajpai and Ajay Kumar Shah

Abstract:
The present investigation was caried out to evaluate the effect of different agroforestry systems on productivity of wheat with respect to insect pest at Forestry Research farm, Department of Forestry, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur, Madhya Pradesh. This research work continuously worked during the Rabi season 2020-21 and 2021-22. The present study revealed total six insects on wheat under Acacia nilotica based agroforestry system (Table no. 1) out of which two insects belonging to Lepidoptera viz. Pink stem borer (Sesamia inferens) and Wheat armyworm (Mythimna separata Walk.) and one Hemiptera Wheat Aphid (Aphis gossypii) caused more damage at different crop growth stage were observed. Similarly two predators of Coleoptera viz. 7-Spotted Beetle (Coccinella septempunctata), Brumers (Brumus suturalis) and one parasite of Hymenoptera viz. Braconid wasp (Lysiphlebus testaceipes) were observed. The maximum incidence of Pink stem borer was recorded during second week of march 10^th Standard meteorological week SMW (2.81 per meter row length/plot) when the crop at reproductive stage. Whereas, the Wheat armyworm highest population was recorded at third week of February 7^th SMW (2.88 per meter row length/plot). The maximum intensity of Wheat Aphid recorded on the third week of march (9.29 per plant) 11^th SMW. The predators Coccinella septempunctata, Brumus suturalis and perasitoid Beaconed wasp was noticed during the crop period with maximum population of 3.00, 2.69 and 2.63 per meter row length at 8^th, 7^th and 12^th SMW, respectively.