Gray leaf spot is accelerated by applications of nitrogen fertilizer ... Fescue grass has totally invaded a 15-by-30-foot bed of mondo grass in our landscape due to a lawn maintenance company’s ...

Dr. Paul Giordano examines the early surge of gray leaf spot in the U.S. and management practices to prevent its spread.

Even the most well-kept lawn can have a few blemishes. Random patches of thick grass are blotchy imperfections that can be hard to ignore.

Before fescue grew enough leaves to make hay, the grass matured. The plants set seed heads. Day length, not temperature or leaf growth, determines maturity.

Gray leaf spot is also active in the lower canopy at multiple sites across the state. The lesions are light tan in color and generally narrow and rectangular, and can be as long as 2 inches. As the ...