Basil Downy Mildew Now in Louisiana!

It’s official. Basil downy mildew was found in Baton Rouge on July 4. As a matter of fact, it was right outside my back door! The plants had been purchased at a local garden center two weeks before, just as they were being delivered.  I have to assume that they were already infected as only the older leaves are affected.  I’ll see if I can find where the plants were produced.

Yellowing of lower foliage due to downy mildew.

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About Don Ferrin

I am an associate professor and extension specialist in the Department of Plant Patholgy & Crop Physiology with the LSU AgCenter in Baton Rouge. I have statewide responsibility for issues and educational programs related to diseases of all horticultural crops in Louisiana.
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