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Evaluating the Efficacy of Commercial Products for Management of Bacterial Leaf Spot on Lettuce

C. T. Bull and S. T. Koike

November 2005


The efficacy of Serenade, Maneb, Cuprofix, and mixtures of these products were evaluated for efficacy in reducing disease incidence and severity of bacterial leaf spot of lettuce caused by Xanthomonas campestris pv. vitians. Also, Messenger, elemental copper, Quadris, and Actigard were evaluated. The results indicate that a mixture of Serenade and Cuprofix may be a useful addition to an integrated bacterial leaf spot disease management strategy but this treatment may be too variable to justify it as a stand-alone treatment.


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