Grape IPM Program: Perennial Weeds You May See—Rapid Shoot Growth

Perennial Weeds You May See

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Bermudagrass
Yellow nutsedge

Field bindweed

Names link to more information on identification and biology.

Click on photos to enlarge

In all California grape-growing regions

Seedling of bermudagrass, Cynodon dactylon, at the two-leaf stage.

Bermudagrass
(Cynodon dactylon): Grass family; perennial; first leaves with somewhat rough surface; ligule surrounded by ring of hairs with tuft of long hairs on either side; auricles absent; stem flat, wiry, and without hairs.

Yellow nutsedge
(Cyperus esculentus): Sedge family; perennial; grasslike; light-green blades, flat, slender; leaf tip long and drawn out; nutlets globe shaped, smooth, and almond flavored.

All regions except Coachella Valley

Field bindweed
(Convolvulus arvensis): Morningglory family; perennial; seed leaves nearly square, with shallow notch at tip; early true leaves spade-shaped; petioles flattened.

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