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Potato
> Year-Round IPM Program > Winter
Annual Weed Seedlings
Potato
Winter Annual Weed Seedlings
On this page
- London rocket
- Sheperd's-purse
- Little mallow
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Use the photos below to identify weeds
in the field. Names link to information on
identification and biology.
Click on photos to enlarge
London rocket
(Sisymbrium irio): Mustard family; winter annual; seedlings narrow with
long stalks; first true leaf oval, margins smooth or with a few weak teeth; subsequent
few leaves similar but with shallow-toothed margins; young plants have deeply
lobed leaves. |
Shepherd's-purse
(Capsella bursa-pastoris): Mustard family; winter annual;
seed leaves pale green with tiny granules on surface; first
true leaves with smooth margins; fourth and later leaves may
be indented; true leaves covered with star-shaped hairs. |
Little mallow (Cheeseweed)
(Malva parviflora): Mallow family; winter annual; seed
leaves heart shaped, sometimes with red tinge; true leaves roundish
with wavy, shallow-toothed margins. |
Mustards
(Brassica spp.): Mustard family; winter annual; all mustard seedlings with broad seed leaves and deep
notch at tip; first true leaves bright green on the upper surface and paler below. |
Tumble mustard
(Sisymbrium altissimum): Mustard family; winter
or summer annual, sometimes biennial; seed leaves oval to oblong, smooth,
on short stalks; first true leaves oblong to elliptical, bristly-hairy,
margin smooth or with a few weak teeth, base tapered to broad stalk;
subsequent leaves increasingly larger with shallow-toothed margins. |
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