Cropping questions and answers for April
Should I spray for powdery mildew when wheat is in the tillering stage? According to Mary Burrows (MSU Extension Plant Pathology Specialist), the winter wheat plant is quite resistant to yield damage at the tillering stage. Yield damage is more of a risk during flag leaf development. If you do have powdery mildew, and it looks like free moisture and 80 degree temperatures are not going to shut the disease down, it is feasible to combine a fungicide with your herbicide application. A yield advantage is more likely in high yield potential wheat crops. Ple...