Influence of Some Cultural Practices on the Incidence of Leaf Spot Disease in Telfairia Occidentalis

ANDREW KEBEI KPU, MBONG GRACE ANNIH, AGYINGI LUCY AMBANG, EBILE DAYAN AGWAH

Abstract


Leaf spot disease, caused by Phoma sorghina, is the most common and economically important disease in Telfairia occidentalis. Limited information is available on the influence of cultural practices on disease control. It is against this backdrop that a field study was conducted in July 2019 and 2020 to investigate how cultural practices viz.: tillage systems and sowing dates, could be harnessed in the management of the disease. A randomized complete block design with three replications and four planting dates was used. The soil physicochemical properties were also determined. Data for disease incidence were submitted to analysis of variance and the means were separated by Duncan’s multiple range test at a 95% confidence interval. Calculations for disease incidence and statistical analysis were conducted using the Microsoft Excel program and SPSS, version 23 respectively. It was established that the zero tillage system registered a significantly lower (p < 0.05) leaf spot disease incidence than the tilled field. The second sowing date in the zero tilled fields recorded the least disease incidence compared to other sowing dates investigated during the study. Therefore, both zero tillage and sowing date two if well implemented can better control leaf spot disease and increase productivity.


Keywords


Incidence, leaf spot, sowing date, Telfairia occidentalis, tillage system

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