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Kentucky News updated as of
August 27, 2007
- Hello Everyone,
- Below are areas (circled) where new finds of SBR have been reported within the last week. Obviously things are beginning to heat up.
Recent model forecasts have indicated that spores of the rust fungus have likely been dispersed into states west, north, and even northeast of Kentucky. This movement was associated with the remnants of Tropical Storm Erin on Aug 22. The forecasts also suggest that extremely low levels of spores may have been deposited into soybean fields in north central and northern Kentucky. However, most areas of the state were not touched by Erin and continue to be very dry. If spores were deposited in Kentucky, it will take at least one, and maybe two generations (or 10-20 days), for us to see evidence of disease. This is because the initial level of spores deposited is predicted to have been VERY low and some likely died due to UV radiation when the sun came back out after the rain (note: we did not have multiple rainy days like some states). Initially, the incidence and severity of any SBR we find would be very low. In my opinion, the absolute earliest we may need to treat soybean in potentially impacted parts of the state would be mid-September. By that time, most full-season crops will be far enough along that spraying will not be necessary. In other areas of the state that are still very hot and dry, drought and/or charcoal rot are the greatest production risks. Doublecrop beans continue to be at greatest risk for possible damage by SBR where rains have occurred. However, the recommendation at this time is that there continues to be NO REASON to spray for soybean rust in the state of Kentucky.
The soybean rust status in Kentucky can change rapidly, so please continue to monitor this site and call into the KY Soybean Promotion Board SBR Hot Line at least twice weekly (888-321-6771).
Trainings
- no soybean rust specific trainings
are presently being offered in Kentucky
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