Effective Downy Mildew Management in Basil Using Resistant Varieties, Environment Modifications, and Fungicides

Considerable progress has been made in managing Peronospora belbahrii, an oomycete pathogen that causes basil downy mildew, since 2007, when it was first detected the United States. Conventional fungicides have registered and shown effective against P. belbahrii replicated experiments recent years. Unfortunately, because of their specific modes action biology, some are at risk for resistance development, which documented outside Sweet varieties developed commercialized, with most exhibiting good to high levels mildew. Knowledge about conditions favorable infection disease development resulted identification cultural practices mildew greenhouse. Practices being implemented include fans move leaves, thus preventing water deposition decreasing relative humidity, lighting night mitigate sporulation, temperature modification suppress development. Although can be more effectively managed today, growers still experience losses, particularly highly None organic or programs tested provided adequate control susceptible varieties, limited testing done on resistant date. This review aims summarize management tools, particular mildew-resistant environment modifications, fungicide applications.