Field Pennycress

Scientific Name: Thlaspi arvense

Weed Family: Brassicaceae

Description

Field pennycress is an annual or winter annual weed. Field pennycress initially grows in a basal rosette, but has an erect flowering stem. The auricles at the base of the leaf are pointed. A similar species, throughwort pennycress has rounded auricles. Basal leaves do not remain when the plant matures and the seed stem is produced. Field pennycress spreads by seed. The flowers of field pennycress are white and produced in dense racemes. The seed pods (silicles) are produced along the flowering stem. They are distinctly winged with a notch at the tip. Field pennycress can be found throughout the United States and Western Canada. It is primarily found in the Northwestern states.

Herbicide Use

Make your post-emergence when field pennycress is young and actively growing, preferable during the rosette stage.

Distribution

Germination Dates

Zone-3: April

Zone-4: March

Zone-5: March

Zone-6: February

Zone-7: February

Zone-8: January

Zone-9: January

PBI-Gordon Product Recommendations

Post-Emergent

SpeedZone® EW Broadleaf Herbicide for Turf

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Post-Emergent

Trimec® Southern Broadleaf Herbicide for Sensitive Southern Grasses

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Post-Emergent

Trimec® Classic Broadleaf Herbicide

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Post-Emergent

Trimec® 992 Broadleaf Herbicide

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Post-Emergent

Trimec® 1000 Low Odor Broadleaf Herbicide

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