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Out-of-control weeds also provide a playground for hiding rodents until they can find a way into your home or shed for better winter protection. Impact on Lawn and Garden Aesthetics
If left intact, crabgrass plants will get huge, with up to 11 to 12 tillers by midsummer. These mature plants will be much more difficult to control with herbicide.
Or head straight for a weed killer to eliminate these unwanted plants. Weed killers or herbicides are made with chemicals that can be harmful to people, wildlife, and the environment.
Common names include crabgrass, finger-grass, and fonio. They are slender monocotyledonous annual and perennial lawn, pasture, and forage plants; some are often considered lawn pests. Digitus is the Latin word for "finger", and they are distinguished by the long, finger-like inflorescences they produce.
Digitaria sanguinalis is a species of grass known by several common names, including hairy crabgrass, [2] hairy finger-grass, [3] large crabgrass, crab finger grass, purple crabgrass. [4] It is one of the better-known species of the genus Digitaria , and one that is known nearly worldwide as a common weed.
Growth begins at temperatures above 15 °C (59 °F) with optimum growth between 24 and 37 °C (75 and 99 °F); in winter or in the dry season, the grass becomes dormant and turns brown. Growth is promoted by full sun and retarded by full shade, e.g., close to tree trunks.
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It has creeping rhizomes which enable it to grow rapidly across grassland.It has flat, hairy leaves with upright flower spikes. The stems grow to 40–150 centimetres (16–59 in) tall; the leaves are linear, 15–40 centimetres (5.9–15.7 in) long and 3–10 millimetres (0.12–0.39 in) broad at the base of the plant, with leaves higher on the stems 2–8.5 millimetres (0.079–0.335 in) broad.