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Efficacy of Bacillus thuringiensis Against Maruca vitrata (Geyer) on Cowpea
Spotted pod borer, Maruca vitrata (Geyer) is a major constraint in the production of grain cowpea. The pest causes losses in grain yield of cowpea ranging from 20 to 60 per cent. In order to manage the pest, field experiments were conducted at four farmers fields during rabi 2010-2011. The study revealed that the pest can be managed effectively by spraying profenophos @ 1ml/litre at the time of flowering, Bacillus thuringiensis @ 1g/litre one at the time of flowering and next one was at 15 days later, Beauveria bassiana @ 20 g/litre at the time of flowering and other one was at 15 days interval and carbaryl @ 4 g/litre at the time of flowering. At harvest, the treatments recorded the per cent pod borer incidence of 6.99, 7.40, 7.86 and 8.96, respectively. Significantly higher grain yield was recorded in profenophos (817.18 kg/ha), Bacillus thuringiensis (754.89 kg/ha) and Beauveria bassiana (748.66 kg/ha) and carbaryl (669.31 kg/ha) treated plots.
Keywords
Spotted Pod Borer, Maruca vitrata, Bacillus thrungiensis, Cowpea.
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- Chandrayudu E, Srinivasan S, Venugopal Rao N. 2008. Evaluation of certain newer insecticides against spotted pod borer, Maruca vitrata (Geyer) on cowpea (Vigna unguiculata (L) Walp). Curr Biotica. 2: 240– 243.
- Ganapthy N, Durairaj C. 2000. Bioefficacy of some newer insecticides against pod borers of blackgram. Pestology 24: 43–44.
- Gopali JB, Raju T, eggelli, Mannur DM, Suhas Y. Elshetty. 2010. Web-forming lepidopteran, Maruca vitrata (Geyer): an emerging and destructive pest in pigeonpea. Karnataka. J Agric Sci. 23: 35–38.
- Karel AK, Schoonhoven AV. 1986. Use of chemical and microbial insecticides against pests of common beans J Econ Entomol. 79: 1692–1696.
- Otieno WA, Karikuri CW. 1991. Field efficacy of B. thuringiensis against tropical cereal stem borers, Chilo partellus, Busseola fusca and the legume pod borer, Maruca testulalis in Kenya. In: Proc. 11th International Congress of Plant Protection, 5–9 October, 1987, Manila, Philippines.
- Sharma HC. 1988. Bionomics, host plant resistance and management of legume pod borer, Maruca vitrata – A review. Crop Protection 17: 373–386.
- Singh SR, Allen DR. 1980. Pests, diseases, resistance, and protection in cowpea, p. 419–443. In Summerfield RJ and Bunting AH. (eds).
- Supriyatin. 1990. Control of mungbean pod borer Maruca testulalis (Lepidoptera: Pyralidae) with chemical and microbial insecticide, p. 50–54. In: Dahlan, M, Sudaryono, Kasno, A, Suyamto, H, Hartojo, HK, Saleh, N, Sunardi, Winarto, A. (Eds). Proceeding of Research Results of Food Crops in Malang Research Institute for Food Crops, 14–15 March 1989.
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