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Downy mildew caused by Peronospora sparsa Berk is one of the most important diseases of blackberry in Mexico, causing losses of up to 70%. Although disease management programs have been previously evaluated, no information on the effect of biological and biorational compounds is currently available. The objectives of this study were to evaluate the pathogenicity of P. sparsa on the cultivars Tupi...
Downy mildew (dryberry) of blackberry, caused by Peronospora sparsa, is a major disease of blackberry in Michoacán, México. The objective of this research was to evaluate different fungicide spray programs to manage systemic infections of downy mildew and dryberry disease in two different regions of Michoacan, Mexico in the 2007 and 2008 growing seasons. The presence of asymptomatic infections of...
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