Vol. 8, Special Issue 8, Part L (2024)

Abstract: An experiment was conducted to observe the population dynamics of cabbage insect pests viz., diamondback moth, cabbage head borer, cabbage leaf webber, cabbage aphid and ladybird beetle on cabbage during Rabi season, 2022-23 at Organic Research Farm Kargua ji, Department of Entomology, Institute of Agricultural Sciences, Bundelkhand University, Jhansi (Uttar Pradesh). The major activity period of the diamondback moth (Plutella xylostella) population appeared during the 49^th SMW and the peak incidence during the 4^th SMW (9.9 larva/plant) and cabbage head borer (Hellula undalis) caterpillar population initiated during the 51^th SMW and reach its peak incidence 3^rd SMW (5.9 larva/plant) respectively while cabbage leaf webber (Crocidolomia binotalis) appeared from 48^th SMW to 9^th SMW with a peak incidence in 1^st SMW (4.9 larva/plant). Cabbage aphid (Brevicoryne brassica) were observed from 49^th SMW to 9^th SMW with peak incidence in 6^th SMW (42.7 larva/plant) and ladybird beetle (Coccinella septempunctata) appeared from 49^th SMW to 9^th SMW with peak incidence 5^th SMW (2.4 larva/plant) respectively. To determine the efficacy of Eight bio-pesticides viz. Neem oil 0.5%, Garlic extract, Bacillus thuringiensis 5%WP, Castor oil 3%, Karanj oil 0.5%, Beauveria bassiana 5%WP, NSKE 5%, Metarizium anisopliae 5% WP and one untreated control was taken against (Plutella xylostlla L.) in cabbage.