The issue: Meadow hawkweed

The issue: Meadow knapweed

The issue: Mediterranean Sage

The issue: Milium (spring millet)

The issue: Jointed goatgrass

The issue: Quackgrass

The issue: Iberian starthistle

The issue: Giant knotweed

The issue: Hydrilla

The issue: Giant hogweed

The issue: Hoary alyssum

The issue: Johnsongrass

The issue: Povertyweed

The issue: Feathered mosquito fern

The issue: Flowering rush

The issue: Water hemlock

Fall Weed Control: Musk thistle: It’s not too late to do something.

The issue: Spiny sowthistle

The issue: Broadleaf plantain

The issue: Buckhorn plantain

The issue: Cutleaf Nightshade

The issue: Common lambsquarters

The issue: Prostrate pigweed

The issue: Yellow and white sweet clover

The issue: Lupine

The issue: Yellow and desert alyssum

The issue: Soil solarization

The issue: Tansymustard and flixweed

The issue: Oxalis or yellow woodsorrel (Oxalis stricta) is a weak perennial, native to eastern and central U.S. that is more of a lawn, yard and garden weed, but can invade woodlands, meadows, and field crops as well. It prefers moist soils but tolerates dry soils once established. Oxalis is…

Flame weeding: Flame weeding

The issue: Tumble mustard

The issue: Cheatgrass

The issue: Integrated pest management

The issue: Medusahead

The issue: Tansy ragwort

The issue: Mayweed chamomile

The issue: Bulbous bluegrass

The issue: Toothed spurge

The issue: Japanese and Bohemian Knotweeds

The issue: Common tansy (Tanacetum vulgare), a creeping, spreading perennial from Eurasia, was introduced to the U.S. as an ornamental plant and for medicinal purposes.

The issue: Yellow Toadflax

The issue: Purple loosestrife

The issue: Water hemlock

The issue: Oxeye daisy

The issue: Dalmatian toadflaxes

The issue: Dyer’s woad (Isatis tinctoria) is a biennial from central Asian and Russia. Historically, it was used to produce a rich blue dye and was introduced to North America in the late 1600s for the same purpose. The plant has successfully invaded rangeland, pastures, cultivated fields an…

The issue: Poison Hemlock

The issue: Curlyleaf pondweed

The issue: Yellow starthistle

The issue: Common crupina

The issue: Buffalobur

The issue: Black henbane

The issue: Cutleaf vipergrass

The issue: Plumeless thistle

The issue: Perennial sowthistle