8 articles tagged "wheat".

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Wheat in Indiana is starting to head out in southern Indiana and flowering will probably start this weekend.  During flowering (anthesis) warm, wet weather with high relative humidity will favor the development of Fusarium head blight (scab). Due to the recent cooler conditions, the risk remains low for most of the state with a few pockets that might start to see to medium risk for the next six days in the north west edge of Indiana based on the Fusarium Risk Tool (Figs 1-2.) If you do choose to spray, aim for this early flowering period.   Our southern neighbors have started reporting multiple diseases in wheat, such as leaf and strip rust. We have yet to see many samples or reports here in Indiana. There are a number of resources are available to help distinguish wheat leaf diseases, they include the Purdue Wheat Field Guide (https://ag.purdue.edu/agry/dtc/Pages/WheatFG.aspx) and “Identifying Rust[Read More…]







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Wheat harvest has begun in Southern Indiana. Fusarium head blight (FHB) or scab is one of the most important diseases of wheat and most challenging to prevent. In addition, FHB infection can cause the production of a mycotoxin called deoxynivalenol (DON or vomitoxin). The environmental conditions have been extremely conducive to FHB development and it is not surprising that I have started to receive reports about issues with FHB and DON contamination. Our research sites in both West Lafayette and Vincennes have high levels of FHB develop in our non-treated susceptible variety checks and initial DON testing was at 7 ppm. Fusarium head blight management is difficult and requires an integrated approach. This includes selection of varieties with moderate resistance and timely fungicide application at flowering. We are now past implementing either of these management options, but these are important to remember for next year. In addition, it will be[Read More…]



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