Gray Leaf Spot on Corn. 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 ...

If we could get a year without seeing gray leaf spot in a field, it would make for a glorious year for corn yields. However, the wicked reality of this situation is that we can’t! As each year ...

DEAR NEIL: We live in one of the areas that has not received excessive rain, but our grass has developed yellowed areas. What is wrong and what do I need ...

The individual spots or lesions are first seen as tiny, brownish spots smaller than a pinhead. As they become larger, they will be circular and then begin to elongate lengthwise along the leaf.

Gray leaf spot thrives in moist conditions, and high humidity can encourage the fungus to grow and spread. Infections require humidity levels to be above 90% for a continuous 12-13 hours. 2 Under ...

Dear Reader: That’s the fungus gray leaf spot. It most commonly follows application of nitrogen during the hot summer weather. It is a disease that can be controlled by application of either ...

Neil Sperry: gray leaf spot, petunias, shade trees, trimming a pecan tree, cutting tree roots, By Neil Sperry, For the Express-News Updated June 21, 2013 11:52 a.m.

A: That’s the fungus gray leaf spot. It most commonly follows application of nitrogen during the hot summer weather. It is a disease that can be controlled by application of either Daconil or ...

ANSWER: Gray leaf spot, a common lawn disease, is the culprit. It flourishes during the hot, humid months and produces round or oblong leaf spots […] Skip to content. All Sections.

Gray leaf spot is a fungus disease that affects St. Augustine grass, perennial ryegrass and tall fescue in Georgia. We do not have fescue in South Georgia since it is a cool season grass.

How to Identify Leaf Spot . If multiple areas on your plants have discoloration, leaf spot might be to blame. Spots can emerge either on the upper or lower sides of leaves in the beginning stages.

Between pop up thunderstorms, people going on vacation and people just not mowing enough, gray leaf spot has exploded on St. Augustine grass. I am seeing gray leaf spot on Zoysia as well. Gray ...