Control of Cowpea (Vigna unguiculata L. Walp) Diseases with Intercropping of Maize (Zea mays L) and Spray of Plant Extracts
Journal Title: Journal of Advances in Microbiology - Year 2017, Vol 7, Issue 4
Abstract
Field experiment was conducted to evaluate the effect foliar spray of aqueous extracts of Datura stramonium, Ricinus communis and Jatropha gossypifolia at three concentrations (65 50 and 30%) on cowpea anthracnose disease caused by Colletotrichum lindemuthianum in sole cowpea and cowpea / maize intercrop. The total area of the farm was 270m2 and cowpea population in each cropping system was 324 stands at a spacing of 60x30 cm while the population of maize in the cowpea/maize intercrop was 162 stands at a spacing of 90x60 cm. Spraying of the plant extracts started two weeks after planting (WAP) and continued until 8 WAP. The extract of D. stramonium reduced the incidence and severity of the disease most compared to other extracts. Similarly, the disease incidence in cowpea/ maize intercrop was lower than in sole cowpea. The disease incidence at 65, 50 and 30% concentrations on pooled mean for the sole crop were 11, 15 and 21% whereas that of intercrop plants were 9, 12 and 16% respectively. The percentage of normal seeds obtained in the study was concentration dependent being highest at 65% in all the extracts and was higher in intercropped (95%) than the sole crop (93%).Similarly, fungal infection on seeds was lower at all concentrations compared to the control. The study therefore shows that extracts of the plants and intercropping of non-host reduced incidence and severity of anthracnose infection with corresponding increase in yield.
Authors and Affiliations
M. J. Falade, O. A. Enikuomehin, M. Aluko
Keywords
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- EP ID EP338269
- DOI 10.9734/JAMB/2017/38156
- Views 81
- Downloads 0
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