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market-farming - Re: [Market-farming] Prevention techniques for Late Blight

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  • From: Bill Shoemaker <wshoemak AT illinois.edu>
  • To: "Market Farming" <market-farming AT lists.ibiblio.org>
  • Subject: Re: [Market-farming] Prevention techniques for Late Blight
  • Date: Tue, 30 Jun 2009 11:15:59 -0500 (CDT)

>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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