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Plum
> Year-Round IPM Program > Fruit Development
> Summer Annual Weeds
Plum
Summer Annual Weeds You May See–Fruit Development
Each name links to more information on identification and biology.
Click on photos to enlarge
Common purslane
(Portulaca oleracea): Purslane family; summer annual; seed leaves oblong,
somewhat club shaped, succulent, maroon on lower surface, and green or maroon
on upper surface; young leaves smooth, succulent, oblong, green on upper-surface,
maroonish underneath, and broadest around leaf tip, with short petioles. |
Hairy fleabane
(Conyza bonariensis): Sunflower family; summer annual; seed leaves gray-green;
first leaves narrow and covered with short, soft hairs; often wrinkled or distorted. |
Horseweed
(Conyza canadensis): Sunflower family; summer annual; seed leaves dull
green, oval with fine hairs, and with short stalks that sometimes may be tinged
brown-purple; first true leaves covered with hairs on upper surface and margins;
undersides of early leaves smooth. |
No photo available
Junglerice
(Echinochloa colona): Grass family; summer annual; grayish, dull-green
first leaves; several purple bands on surface of leaf blade; no ligule, no auricle. |
Morningglories (Ipomoea spp.)Morningglory
family; summer annual; seed leaves deeply notched; heart-shaped
first true leaves with deep lobes at base; stem below seed
leaves maroon at base and green toward leaf tip. |
Spotted spurge
(Chamaesyce maculata): Spurge family; summer annual;
seed leaves oval, tips roundish, blue-green with smooth margin;
first true leaves rounded, leaf surface smooth and dull,
dark green with reddish tinge. |
Bearded sprangletop
(Leptochloa fasicularis): Grass family; summer annual; first
leaves light green, usually with white midrib; blades somewhat
rolled; sheaths loose near base of plant; ligule long, thin,
membranous and tears easily. |
Tall annual willowherb
(Epibolium brachycarpum): Primrose family; summer
annual; seed leaves small, round, often dark reddish-green;
true leaves narrow, 4 to 5 times longer than wide, first
true leaves opposite and smooth around edges. |
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