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Clear For TakeoffJuly 13, 2010
Posted by:
Jim Rowley, Regional Sales Agronomist
An increase in relative humidity this summer, along with the more-than-adequate rainfall, has resulted in an environment conducive to Grey Leaf Spot and other fungal diseases. This year is unlike the summer of 2009 which offered moisture and COOL temperatures . . . an environment ideal for White Mold in soybeans and not a high need to spray for GLS in corn.
With pollen-shed now in full swing throughout much of Central and Northern Illinois, the crop dusting planes are in full throttle. It is projected that a majority of the corn fungicide should be applied by the end of next week. Check with your local crop scout or retailer for more information on exact timing of fungicide on your individual hybrids. Timing may vary based on planting dates and heat units required for certain hybrids to reach the reproductive stage.
Remember: Never apply crop oil, non-ionic surfactants or other unapproved spray additives in combination with fungicides prior to tassel emergence to avoid Arrested Ears as found in 2007. Certain products, such as CoRoN, are approved tank mixes and do not cause problems.
