Snow kills the grass in winter
How to deal with winter kills on your lawn
Here are the causes and what you can kill against winter
Winter killing (or winter killing) refers to any serious damage or death caused by lawn turf during the winter months. Symptoms include patches of lawn that remain brown or bare after the lawn normally returns to healthy, green growth in the spring. For the most part, lawn grasses that are well cared for are resilient and strong, but winter weather cannot forgive even the best of lawns. The dead spots that have been winter killed can take months to fill back on on their own and may require you to re-seed or replace the lawn.
Winter kill can occur under a variety of conditions.
Grasses can survive almost any temperature if covered with snow, but uncovered grasses in very cold conditions will continue to seep (lose moisture and oxygen) after the ground is frozen solid. Frozen roots cannot replace the moisture sucked out by cold, dry winds, and plants can suffer cell death and perhaps even crown death.
Treatment: Wait patiently to see if the grass will get well again. If the damage is minor, individual grass plants can recover, or surrounding grass plants can fill up. If the damage is widespread, you may need to re-seed dead areas.
When heavy snow falls over the ground that is not yet cold, the damp conditions can promote a variety of fungal diseases collectively known as snow mold. In spring, when the snow melts, you will notice fluffy or crusty spots, pink or gray, in the covering of parts of the lawn.
Treatment:Snow mold usually dies as the sun and breezes dry out the lawn, but if the lawn is infected for a long time, the grass can die. Usually, however, the grasses recover gradually. If the lawn still has debris from the previous year, do the math to improve airflow to the grass.
To prevent snow mold, be sure to core or aerate your lawn regularly, which will increase air circulation and prevent snow mold. Some experts advise against fertilizing the lawn in the off-season, as unabsorbed nutrients covered in snow while the soil is still warm can promote mold growth.
Freeze the crown
The canopy of turf grass can be killed when warm, humid weather is followed by a sudden freeze. This is most common in late winter and early spring, especially when unexpected frosts occur in warm climates with warm grasses. If the crows, which have absorbed a lot of water, suddenly freeze, the expansion can kill the canopy.
treatment : Widespread damage requires reseeding or eroding. There isn't much you can do to prevent the crown from freezing. If you live in a borderline climate zone and have frequent crown frosts, consider overseeding with a mixture of grass and grass mixture.
A very identifiable type of winter kill is caused by voles - tiny rodents that leave narrow, meandering ribbons of dead grass on the lawn. The mouse-like pests range in size from 3 to 9 inches, and they spend their winter tunneling under the snow or debris and eating plant roots. The dead tracks indicate the places where they have completely eaten the grass roots.
Treatment: Vole tracks usually fill up again as surrounding grasses send out new roots and shoots. If the damage is widespread, you may need to re-seed. To prevent voles, remove dead grass and fallen leaves in the fall, as this will provide shelter for the rodents for their winter adventures. Voles can be caught and baited in the same way as mice, although it is difficult to do with snow cover.
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