Preparation for soybean rust paid off

Yancy Jr., Cecil H.
March 2005
Southeast Farm Press;3/2/2005, Vol. 32 Issue 7, p2
Trade Publication
The article presents information on the rust disease of soybean in the U.S. The disease presents a series of dark, reddish to dark brown spots on the leaves of soybeans. It causes a yellowing before causing the plant to drop its leaves. The spores look like little volcanoes on the leaves. Soybean rust can produce as many as 500 billion spores per acre per day. The best conditions for its spread include moisture on leaves for six to eight hours and 65 degrees Fahrenheit to 82 degrees Fahrenheit. New spores form in six to 10 days. The disease progresses taster as the crop matures. It does not over-winter in northern climates. So, it will likely over-winter in south Florida, Texas, Louisiana and Georgia.


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