Evaluation of latex, wood ash and leaf powder of Jatropha curcas and Jatropha gossypyfolia as protectants of stored cowpea against Callosobrochus maculatus

Remi-Esan, I.A and Olatunde, V.O and Ariyo, O.E (2017) Evaluation of latex, wood ash and leaf powder of Jatropha curcas and Jatropha gossypyfolia as protectants of stored cowpea against Callosobrochus maculatus. In: SPASCIT, 4th – 7th December, 2017., Federal Polytechnic Ilaro, Ogun State.

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Abstract

Jatropha carcus and Jatropha gossypyfolia powder, wood ash and latex were assayed for their insecticidal potential against cowpea bruchid, Callosobruchus maculatus in the laboratory at ambient temperature and humidity. The plants wood ash, powder and latex were tested at rate 2 g/20 g of cowpea seeds. Adult mortality and fecundity of the insect were further investigated. Result showed that wood ash of J. carcus caused 100 % mortality of adult cowpea bruchid after 4 days of application, followed by powder of J. carcus which caused 92.5 % mortality while powder of J. gossypifolia was the least effective that caused 90 % mortality of adult bruchids. Progeny development was hindered in seeds treated with wood ash and latex of both J. carcus and J. gossypifolia compared with untreated that had 81.1 % adult emergence. The result obtained from this study revealed that J. carcus and J. gossypifolia wood ash and latex were effective in controlling C. maculatus and could serve as an alternative to synthetic insecticides for the protection of stored cowpea bruchid.

Item Type:	Conference or Workshop Item (Paper)
Subjects:	Q Science > Q Science (General)
Divisions:	Faculty of Engineering, Science and Mathematics > School of Chemistry
Depositing User:	Mr Taiwo Egbeyemi
Date Deposited:	14 Jun 2020 16:19
Last Modified:	14 Jun 2020 16:19
URI:	http://eprints.federalpolyilaro.edu.ng/id/eprint/559

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