Turfgrass weeds are considered any undesirable plant species growing in the lawn. The first step to weed management is identification. Correctly identifying a weed is useful because the presence of certain weeds can indicate current or potential lawn issues such as drainage or soil compaction. View these topics to learn about the most common weeds growing in home lawns across Louisiana.
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|Identification of Turfgrass Species|
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Weedy grasses are weeds in the grass (Poaceae) family. They typically have similar characteristics to turfgrassses but are often undesirable in a lawn. These plants have long, slender leaf blades and seed heads which often rise above the plant base and are generally unsightly in the lawn.
Sedges are characterized as having long, slender leaf blades similar to grasses but are easily differentiated from turfgrasses due to their triangular stems. Grass-like weeds have characteristics that are similar to grasses, but are not true grass species. They also typically have showy flowers that are easily distinguishable from many turfgrass and weedy grass species.
Broadleaf weeds are distinguished from weedy grasses, sedges, and grass-like weeds by their broad, rounded leaves. In addition, broadleaf weeds typically have noticeable flowers and/or fruit capsules. Another sure way to spot a broadleaf weed is to look closely at the veins of a leaf. Veins that are branched or netted instead of parallel are a characteristic common to broadleaf weeds.
All weed species (grassy weeds, sedges, grass-like weeds, and broadleaf weeds) which commonly grow in Louisiana are available in one list to browse.