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Published on Wednesday, June 22, 2016
Depending on planting dates and growing conditions this year, both corn and soybeans will begin their reproductive growth stages toward the end of June and into July. This is a critical time to manage foliar diseases. Each growing season is unique in the weather patterns we see and ultimately which diseases we need to be most concerned about.
Some farmers spray fungicides regardless of disease pressure while others wait to apply it only if disease pressure warrants treatment. According to page 241 in the 2015 Beck’s Practical Farm Research (PFR)® Book, the most profitable time to apply fungicide in a multi-year, multi-location test is at the VT (tassel emergence) growth stage for corn.
In soybeans, the individual PFR locations conducted trials that demonstrate the results of applying a fungicide. In many cases they also applied an insecticide along with the fungicide at the R3 (early pod) growth stage. A fungicide application at the R3 growth stage in soybeans in 2015 proved to have a positive return on investment in most cases, and that is typically what is seen in soybeans year after year. As you contemplate the need for foliar fungicides this summer, please remember that your local Beck’s dealers, seed advisors, and field agronomists are here to help you make the decision.
Author: Pat Holloway
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