What is the risk of having soybean rust in soybean fields in Mississippi in 2010?
This will all depend on the weather early in the season and amount of overwintering that occurs in southern locations. Based on cold temperatures during late 2009 and early 2010 observations on kudzu from AL, FL, GA, LA, and MS suggest that no rust survived the winter. Just because a particular field had soybean rust in 2009 doesn’t mean that it will have soybean rust in 2010. In general, based on past experiences, risk will be low to medium for early planted soybeans, for later planted soybeans the risk will be medium to high. Typically, the inoculum potential will be lowest early in the season.
