Vol. 8, Issue 3 (2020)
Influence of weather factors on incidence of fruit borer complex (Earias vittella Fabricius and Helicoverpa armigera Hub.) on okra
Author(s): Umesh Das, J Ghosh and N Chaudhuri
Abstract: An experiment was conducted to study the seasonal incidence of fruit borer infesting okra (cultivar – Bhindi No.10) during post-kharif (2015 & 2016) and pre-kharif (2016 & 2017) season at Uttar Banga Krishi Viswavidyalaya, Pundibari, West Bengal, India. The result revealed that the activity of fruit borer was found more during pre-kharif season in comparison to post-kharif season. The peak incidence of fruit borer (28.43%/plant) was observed in 45SW during post-kharif season and (33.22%/plant) in 20SW during pre-kharif season. Weather play an important role in incidence of fruit borer in both post-kharif and pre-kharif seasons under study. During post-kharif season, fruit borer (bored fruit %) had significantly negative correlation with maximum and minimum temperature of all weeks. During pre-kharif season the maximum temperature of current week, minimum temperature of all the week, evening RH of current week, 1-lag week and total rainfall of 2-lag week had positively significant influence on fruit borer incidence.
DOI: 10.22271/chemi.2020.v8.i3ak.9602
Pages: 2589-2592 | 403 Views 60 Downloads
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How to cite this article:
Umesh Das, J Ghosh, N Chaudhuri. Influence of weather factors on incidence of fruit borer complex (Earias vittella Fabricius and Helicoverpa armigera Hub.) on okra. Int J Chem Stud 2020;8(3):2589-2592. DOI: 10.22271/chemi.2020.v8.i3ak.9602
