Then, the base temperature is subtracted ... Past V6 and approaching VT, be sure to scout for gray leaf spot, Northern Corn Leaf Blight (NCLB), and Curvularia leaf spot, especially in fields with a ...

Gray leaf spot, caused by the fungus Cercospora zeae maydis is the most significant yield-limiting disease of corn worldwide [1]. The disease was first reported in Illinois in 1924, and has increased ...