Farmers’ Perceptions and Knowledge of Country Bean ( Lablab purpureus L.) Insect Pests, and Diseases, and Their Management Practices, in Bangladesh

Md Masudur Rahman, Chandra Kanta Dash, Md Musfikur Rahman, Md Mehedi Hasan, Afsana Hannan, Saumik Dev and Md Fuad Mondal ()
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Md Masudur Rahman: Department of Entomology, Sylhet Agricultural University, Sylhet 3100, Bangladesh
Chandra Kanta Dash: Department of Entomology, Sylhet Agricultural University, Sylhet 3100, Bangladesh
Md Musfikur Rahman: Department of Entomology, Sylhet Agricultural University, Sylhet 3100, Bangladesh
Md Mehedi Hasan: Department of Entomology, Sylhet Agricultural University, Sylhet 3100, Bangladesh
Afsana Hannan: Department of Genetics and Plant Breeding, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
Saumik Dev: Department of Entomology, Sylhet Agricultural University, Sylhet 3100, Bangladesh
Md Fuad Mondal: Department of Entomology, Sylhet Agricultural University, Sylhet 3100, Bangladesh

Sustainability, 2022, vol. 14, issue 20, 1-18

Abstract: Country bean ( Lablab purpureus L.), a popular vegetable in Bangladesh, is severely affected by insect pests and diseases. Farmers’ perceptions of insect pests, diseases, and their management are critical constraints to the establishment of an effective and sustainable pest management approach for this crop. A comprehensive survey was conducted with 300 country bean farmers from six districts of Bangladesh to assess farmers’ perceptions and knowledge of the insect pests and diseases of country bean, and their management practices. The survey results show that country bean farmers have been facing varying pest problems for more than ten years. They could identify eight pests and only one beneficial insect species in their fields, including thrips and jute weevil, as new pests. Among the pests, aphids and pod borers were common in all surveyed areas. More than 80% of farmers said their bean plants were severely affected by bean yellow mosaic virus and white mold diseases. Farmers also mentioned that insect pests and diseases together caused 30–40% yield losses of this crop. About 76% of the farmers solely depended on different chemical pesticides for the production of country bean. Growers frequently used insecticides from the organophosphorus and neonicotinoid groups, and fungicides from the triazole group, to manage pests associated with this crop. Farmers start applying pesticides from the seedling stages, at three-day intervals, maintaining only two- to four-day pre-harvest intervals (PHI). Our findings provide insight into the importance of developing sustainable pest management approaches for country bean production in Bangladesh.

Keywords: Lablab purpureus L.; insect pests; diseases; Bangladesh; pesticides (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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