Crabgrass
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Crabgrass

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Tiller Stage

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Crabgrass

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Crabgrass

Crabgrass

Description

A summer annual that reproduces by seed. Stems can be 2 to 6 inches in length. Leaf blades are flat and hairy and from the growing point of the plant stems can be up to 11 finger like stems on one plant. In the fall time the plant will start turning a purple color. It is a flat laying weed which will distinguish it from Tall Fescue.

Time of Year

Crabgrass germinates in the spring and the shoots can be seen in early to mid July. Will die off as temperatures get colder in early fall

Symptoms

This weed is not a competitor and will grow where there is bare soil. A single plant is able to produce up to 150,000 seeds.

Treatment

The best control for this weed is both cultrual and chemical. High mowing and proper edging will keep this under control. A pre-emergent in early spring will kill the emerging plant from the seed. Timing is critical as seeds will germinate when soil temperatures are 60 degrees at one inch for 7 days. When using any chemical control, be sure to read and follow all label directions for any product used.