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Journal of Advances in Microbiology, 2456-7116,Vol.: 7, Issue.: 4

Original-research-article

Control of Cowpea (Vigna unguiculata L. Walp) Diseases with Intercropping of Maize (Zea mays L) and Spray of Plant Extracts

 

M. J. Falade1*, O. A. Enikuomehin2, O. A. Borisade1 and M. Aluko1

1Department of Crop, Horticulture and Landscape Design, Ekiti State University, Ado-Ekiti, Nigeria.

2Department of Crop Protection, College of Plant Science, Federal University of Agriculture, Abeokuta, Nigeria.

Article Information
Editor(s):
(1) Clara Eleazar, Medical Microbiology, University of Nigeria, Nigeria.
Reviewers:
(1) Hassani Abdelkrim, Ibn khaldoun University, Algeria.
(2) Tariq Mukhtar, Pir Mehr Ali Shah Arid Agriculture University, Pakistan.
Complete Peer review History: http://www.sciencedomain.org/review-history/22702

Abstracts

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.

Keywords :

Colletotrichum lindemuthianum, plant extracts; disease incidence and severity.

Full Article - PDF    Page 1-10 Article Metrics

DOI : 10.9734/JAMB/2017/38156

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