Most of the winter wheat in South Dakota is now at flowering. This growth stage coincides with the Fusarium head blight (FHB or scab) disease development. Currently the FHB prediction tool is showing the central parts and a few scattered areas in west SD to have moderate
Read more →Most of the winter wheat crop is past the window for fungicide application for FHB (scab) management. However, spring wheat in SD varies from jointing to flowering across the state; therefore, spring wheat may have a long window of exposure to conducive weather conditions for scab to
Read more →A good proportion of winter wheat in South Dakota is now in bloom (anthesis) or past bloom as of the week of June 17. The Fusarium head blight (FHB) predicted risk has not changed from last week (remains low) because of generally low relative humidity, which is
Read more →Scouts continue to find tan spot in both winter wheat and spring wheat in their second week of scouting. There were no reports for Septoria spp. or leaf rust. The reported incidence and severity of tan spot increased a bit from the previous week. The risk assessment
Read more →Commentary 06/10/2019 Scouts reported tan spot in both winter wheat and spring wheat in their first week of scouting. The risk assessment models mirror their findings as the cooler than normal temperatures were only favorable for tan spot. The immediate weather forecast not only
Read more →Winter wheat in South Dakota ranges from flag leaf to flowering as of the week of June 10. Wheat that is heading or flowering is most prone to Fusarium head blight (FHB or scab) development provided the weather conditions are conducive, since the source of inoculum is
Read more →Most of the spring wheat is past flowering but for late planted or late maturing spring wheat varieties, flowering may still be going on. These fields are at risk for Fusarium head blight (FHB or scab). The FHB prediction tool is showing moderate to high risk for
Read more →The risk for Fusarium head blight (FHB, scab) remains high for the most of the eastern half of the state and some parts of north and southwest SD. Spring wheat that is at flowering or just done flowering may benefit from a triazole fungicide application. Although the
Read more →Spring wheat is at heading and some of the fields are at flowering growth stage. Current weather conditions are conducive for Fusarium head blight or scab to develop for the majority of the state. The FHB prediction tool is a showing high risk for FHB in susceptible
Read more →A few areas in the south central and the east are showing some moderate to high risk for Fusarium head blight (FHB). If winter wheat is starting to flower or just got done flowering and you are in these areas, a triazole fungicide is recommended to control
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