International Journal of Statistics and Applied Mathematics
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2024, Vol. 9, Special Issue 4

Seasonal incidence and population dynamics of key insect pests in cabbage (Brassica oleracea var. Capitata) in eastern India: The influence of meteorological factors during the Rabi season


Author(s): Koushik Garai

Abstract: Cabbage (Brassica oleracea var. Capitata) is a crucial crop in the eastern part of India, playing a significant role in both the regional economy and food security. However, cabbage cultivation faces severe threats from various insect pests, including aphids (Brevicoryne spp.), whiteflies (Bemisia spp.), diamondback moths (Plutella spp.), head borers (Hellula spp.), and leaf webbers along with one parasitoids Coccinella spp. These pests not only reduce yield but also compromise the quality of the produce, necessitating effective pest management strategies for sustainable farming. This study, conducted during the Rabi season of 2023-24 at the Agricultural Farm of Visva Bharati University, Sriniketan, West Bengal, focused on understanding the seasonal incidence and population dynamics of these pests in relation to meteorological factors. Using a randomized block design with three replications, cabbage crops were monitored weekly across standard meteorological weeks (smws). The findings revealed that aphid populations began to rise significantly from SMW 51, peaking at 28.9 aphids per plant by SMW 5, corresponding with cooler temperatures and higher humidity levels. Whitefly populations followed a similar trend, peaking at 22.36 per plant by SMW 4. The diamondback moth showed peak activity in SMW 3, with 8.96 moths per plant, while head borers and leaf webbers reached their highest populations during the mid to late stages of cabbage growth. These results underscore the importance of integrating weather-based monitoring systems into pest management strategies. By timing pest control interventions with periods of peak pest activity, farmers can optimize pest control measures, reduce crop losses, and minimize the use of chemical pesticides. This study provides valuable insights for developing sustainable pest management practices in the eastern part of India, contributing to both the scientific community and practical agriculture.

Pages: 106-112 | Views: 135 | Downloads: 3

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How to cite this article:
Koushik Garai. Seasonal incidence and population dynamics of key insect pests in cabbage (Brassica oleracea var. Capitata) in eastern India: The influence of meteorological factors during the Rabi season. Int J Stat Appl Math 2024;9(4S):106-112.

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