Brown silks are one sign that corn is maturing; also check the kernels themselves. If you puncture one with your fingernail, it should exude a milky liquid. If it is clear, it is not ready yet. However, there are also several diseases, pests, and cultural/environmental problems that can cause the same effect. Drought stress, for example, can interfere with pollination, and so can the feeding habits of certain insects. For in-depth information about corn ear problems—you might visit this page from the Ohio State University:
http://u.osu.edu/mastercorn/
Brown silks are one sign that corn is maturing; also check the kernels themselves. If you puncture one with your fingernail, it should exude a milky liquid. If it is clear, it is not ready yet. However, there are also several diseases, pests, and cultural/environmental problems that can cause the same effect. Drought stress, for example, can interfere with pollination, and so can the feeding habits of certain insects. For in-depth information about corn ear problems—you might visit this page from the Ohio State University:
http://u.osu.edu/mastercorn/