In Ontario, winter-kill of turf is a problem only where ice covers the grass for long periods of time. When these are not present in the soil, certain trace element deficiencies may show up, particularly iron, manganese, copper and zinc. Observing deficiencies is the first step in identifying problems. Produces chlorosis of younger leaves with yellow-green to dead spots on older leaves, plus withering of the leaf tips. A stunted, yellow appearance to the entire plant, with a bluish tint to the tips of younger leaves.
Leaves are smaller in size and clumped together, so the grass has a stunted appearance.
The leaves may seem darker. Understanding deficiencies in your lawn can be quite a tricky task, and you may want to call in help from an expert. I've personally found that by using well-balanced fertilizers with small amounts of trace elements and, of course, top dressing with my old friend screened compost has proven to be successful for my front 40 and back 60. Keep fit this fall by gardening. This article first appeared on September 16, 2000.