tailieunhanh - Efficacy of plant extracts and chemicals against ascochyta phaseolorum, causal agent of ascochyta blight of Vigna anguiculata (L.) Walp.

During survey, cowpea [Vigna anguiculata (L) Walp.] was found severely affected by ascochyta blight and disease was found well distributed in the surveyed areas of Meghalaya. The per cent disease incidence was found maximum in Mawlai () under East Khasi Hills followed by RRTC () under Ri-Bhoi district. In average, PDI was found highest in Ri-Bhoi district () and least in West Khasi Hills district (). Ascochyta phaseolorum was consistently isolated from symptomatic leaves. | Efficacy of plant extracts and chemicals against ascochyta phaseolorum causal agent of ascochyta blight of Vigna anguiculata L. Walp.

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