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Asian Journal of Biological Sciences

Year: 2019 | Volume: 12 | Issue: 3 | Page No.: 404-411
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Authors

Peter Emmanuel

Peter Emmanuel

Sule Hassan

Sule Hassan

Keywords

Research Article

Efficacy of Solar Heat Using Polypropylene Sheets to Manage Callosobruchus maculatus (Fab.) Infesting Stored Cowpea

Peter Emmanuel Peter Emmanuel's LiveDNA and Sule Hassan Sule Hassan's LiveDNA
Background and Objective: Cowpea bruchid Callosobruchus maculatus is one of the most destructive pests of cowpea seed either on the field or in storage and a major constraint to cowpea storage in Nigeria and other Nations. The objective of the study was to evaluate the efficacy of solar heat against C. maculatus infestation. Materials and Methods: Polypropylene sheets (black, blue, yellow, green and transparent) containing 100 g cowpea seeds were infested with C. maculatus and four exposure periods (2, 4, 6 and 8 h) with control (unexposed) were laid out in a completely randomized design and replicated four times. Data was collected on adult mortality, oviposition, egg hatchability, seed germination, weight loss and damage and subjected to two-way analysis of variance (ANOVA) using JMP 13 Computer Software. Results: Findings of this study show that solar heat had effect on C. maculatus causing significant (P0.05) mortality at different exposure periods. Solar treated grains recorded 100% mortality of adult C. maculatus when compared to the control. The resulting effect of solar heat led to significant reduction in oviposition and inhibit progeny emergence to an appreciable level in treated seeds (4.7%) when compared to the control (94.7%) and had no significant effect on germination of the seeds. Also no seed damage and weight loss was observed in cowpea seeds stored for 3 months after exposure to solar heat for 6 and 8 h. Conclusion: It is concluded that, exposing cowpea in transparent polypropylene sheets to solar heat for 2 h can be used to effectively manage the cowpea bruchid.
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How to cite this article

Peter Emmanuel and Sule Hassan, 2019. Efficacy of Solar Heat Using Polypropylene Sheets to Manage Callosobruchus maculatus (Fab.) Infesting Stored Cowpea. Asian Journal of Biological Sciences, 12: 404-411.

URL: https://scialert.net/abstract/?doi=ajbs.2019.404.411

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