[Market-farming] Prevention techniques for Late Blight

Bill Shoemaker wshoemak at illinois.edu
Tue Jun 30 12:15:59 EDT 2009


>Also, should a plant develop late blight, and it is caught early,
>can the leaf be clipped off and the plant saved, or is it too risky ?

There is no real liability in letting the plant survive while working with it. If you're worried about other plants, they may be more tolerant of it genetically. Plus, weather conditions which favor the disease may change and put a halt to disease development. Removing infected tissue is fine. Tomatoes can generate new tissue quickly. But the organism which causes the disease is ubiquitous. You cannot "sanitize" your way to a disease-free property. You can only institute management techniques to minimize risk. And use fungicides if acceptable.

Bill
William H Shoemaker, UI-NRES
Sr Research Specialist, Food Crops
St Charles Horticulture Research Center
535 Randall Road  St Charles, IL  60174
630-584-7254; FAX-584-4610



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