Weeds mapped in Alberta

^ From Alberta Agriculture and Forestry Weed Survey Results Online map, MD of Pincher Creek data:

Low

• Restricted: Diffuse knapweed, Nodding thistle, Spotted knapweed
• Noxious: Common tansy, Cypress spurge, Field bindweed, Field scabious, Purple loosestrife, Russian knapweed, Scentless chamomile, White cockle
• Nuisance: Annual sow thistle, Creeping bellflower, Green tansy mustard, Hedge bindweed, Rough cinquefoil, Wild radish

Trace 

• Restricted: Yellow star-thistle

Moderate

• Noxious: Bladder campion, Cleavers, Hoary cress, Persian darnel,Spreading dogbane, Toadflax
• Nuisance: Ball mustard, Biennial campion, Cow cockle, Dog mustard,Field chickweed, Green foxtail, Mouse-eared chickweed, Night-flowering catchfly, Tartary buckwheat, Wormseed mustard

High

• Noxious: Blueweed, Canada thistle, Leafy spurge, Oxeye daisy,Perennial sow thistle, Tall buttercup
• Nuisance: Bluebur, Common chickweed, Dalmation toadflax,Dandelion, Downy brome, Flixweed, Hemp nettle, Henbit, Quack grass, Redroot pigweed, Round-leaved mallow, Russian thistle,Stinkweed, Wild buckwheat, Wild mustard, Wild oats

• Click here for Alberta Agriculture and Forestry Crop decision-making resources.