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May 5, 2010 10:54 AM by Letitia Walker

Infected Tomato Plants in Lafayette

BATON ROUGE, La. (AP) - LSU AgCenter scientists say they've
found tomato blight on plants from home gardens in Terrebonne,
Lafayette, Livingston and Tangipahoa parishes.
Symptoms include black lesions on stems and leafstalks,
blackened fruit, and dark, dead areas on leaves.
Plant pathologist Don Ferrin says home gardeners should remove
and destroy infected plants, and spray regularly with fungicides.
He recommends chlorothalonil (klor-oh-THAL-oh-nil), mancozeb,
copper or a combination of mancozeb and copper.
Ferrin notes that chlorothalonil may be used as late as the day
of harvest, but mancozeb cannot be used within five days of
harvest.
He says the fungus is probably on infected transplants, so
gardeners should check for symptoms before buying.

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