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2014 White Mold Pressure Pattern Similar to 2009
The last year we had a significant amount of white mold pressure was 2009. As you may (or may not) recall, 2009 was below average as far as temperatures were concerned. Highs were generally in the 70s and low 80s and lows were in the 50s and 60s during July. When we look at July 2014 so far, we are following a similar pattern.
The white mold fungus enters the plant through flowers and our soybeans have been flowering throughout July. The white mold fungus can survive in your fields for over 15 years so crop rotations have little effect on disease incidence. If your fields have a history of white mold you may want to talk with your seed advisor or local retailer to see if fungicides may be useful. There are only a few fungicides labelled for control and timing is important. See the link in the article below for fungicide efficacy ratings.