Additional Information About Using Omega for Lima Bean Downy Mildew Control

Bob Mulrooney, Extension Plant Pathologist; bobmul@udel.edu

In last week’s article I went over the control measures for downy mildew on baby lima beans and recommended Omega as a new product labeled for lima beans that has excellent activity for downy mildew as well as white mold. The label is a little ambiguous about recommended application methods and it was clarified by the manufacturer that it is to be applied by ground only, not by air. I am in contact with the company concerning this issue, and they will be pursuing changing the label with EPA. Unfortunately nothing will happen in time for this season if downy mildew should appear later, but it can be applied by ground rigs now.

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