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Temperature-dependent development and reproduction of the cowpea weevil, Callosobruchus maculatus F., in mungbean: Estimating a target temperature for its control using aeration cooling

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Daglish, G. J., Jagadeesan, R. and Nayak, M. K. (2021) Temperature-dependent development and reproduction of the cowpea weevil, Callosobruchus maculatus F., in mungbean: Estimating a target temperature for its control using aeration cooling. Journal of Stored Products Research, 92 . p. 101815. ISSN 0022-474X

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Article Link: https://doi.org/10.1016/j.jspr.2021.101815

Publisher URL: https://www.sciencedirect.com/science/article/pii/S0022474X21000540

Abstract

The bruchid, Callosobruchus maculatus F., commonly known as the cowpea weevil, infests stored mungbean and other legumes. Aeration cooling has potential as a non-chemical means of managing this species in stored legumes. Population growth of C. maculatus in mungbean was investigated at nine constant temperatures (15, 17.5, 20, 22.5, 25, 27.5, 30, 32.5 and 35 °C) at 60% RH so that a target temperature for cooling could be estimated. We used two laboratory strains: Strain 1 and Strain 2 that had been in culture for 16–17 years and 1–2 years respectively. The results for the two strains were very similar. Egg to adult development occurred between 20 and 35 °C for Strain 1 and 17.5 and 35 °C for Strain 2. The optimal temperature for population growth was estimated to be 32.2 and 33.7 °C for Strains 1 and 2, respectively. The estimated lower threshold for population growth, i.e. the temperature at which population growth is zero, was 17.5 °C for Strain 1 compared with 17.1 °C for Strain 2. Based on our results, we recommend a target temperature of 17 °C for aeration cooling to manage C. maculatus infestations in mungbean during storage.

Item Type:Article
Business groups:Crop and Food Science
Additional Information:#
Keywords:Bruchid Temperature Mungbean Pest management
Subjects:Science > Entomology
Plant culture > Field crops
Plant pests and diseases
Plant pests and diseases > Pest control and treatment of diseases. Plant protection
Live Archive:18 May 2021 00:25
Last Modified:03 Sep 2021 16:46

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