Agriculture

Declaration Of Noxious Weeds In Manitoba

Designated Tier 1 Noxious Weeds Area for which Designation applies
Common name Scientific name
Amaranth, Palmer  Amaranthus palmeri All areas of the province outside the Municipality of Bifrost-Riverton and the Rural Municipalities of Armstrong, Fisher, Gimli, Rockwood, St. Andrews and St. Clements 
Bartsia, red Odontes vernus Whole province
Crupina, common Crupina vulgaris Whole province
Cupgrass, woolly  Eriochloa villosa Whole province
Goatgrass, jointed Aegilops cylindrical Whole province
Hawkweed, orange Hieracium aurantiacum Whole province
Hogweed, giant Heracleum mantegazzianum Whole province
Hound’s-tongue Cynoglassum officinale Whole province
Knapweed, diffuse Centaurea diffusa Whole province
Knapweed, Russian Acroptilon repens Whole province
Knapweed, spotted Centaurea stoebe Whole province
Knapweed, squarrose Centaurea virgata  Whole province
Knotweed, Japanese Fallopia japonica Whole province
Mile-a-minute weed Persicaria perfoliata Whole province
Mustard, garlic Allaria petiolata Whole province
Patterson’s curse Echium plantagineum Whole province
Pigweed, smooth Amaranthus hybridus Whole province
Saltcedar Tamarix spp. Whole province
Star-thistle, yellow Centaurea solstitialus Whole province
Tussock, serrated Nassella trichotoma Whole province
Waterhemp, tall Amaranthus turbriculatus Whole province
Designated Tier 2 Noxious Weeds Area for which Designation applies
Common name Scientific name
Alyssum, hoary Berteroa incana Whole province
Baby’s-breath Gypsophila paniculata Whole province
Bartsia, red Odontes vernus Municipality of Bifrost-Riverton and the Rural Municipalities of Armstrong, Fisher, Gimli, Rockwood, St. Andrews and St. Clements
Bouncingbet Saponaria officinalis Whole province
Brome, downy Bromus tectorum Whole province
Brome, Japanese Bromus japonicas Whole province
Campion, bladder Silene vulgaris Whole province
Chamomile, scentless Matricaria perforata Whole province
Common reed, invasive Phragmites australis australis Whole province
Daisy, ox-eye Leucanthemum vulgare Whole province
Nutsedge, yellow Cyperus esculentus Whole province
Scabious, field Knautia arvensis Whole province
Spurge, Cypress Euphorbia cyparissias Whole province
Spurge, leafy Euphorbia esula Whole province
St. John’s-wort Hypericum perforatum Whole province
Tansy, common Tanacetum vulgare Whole province
Thistle, nodding Carduus nutans Whole province
Toadflax, Dalmatian Linaria dalmatica Whole province
Designated Tier 3 Noxious Weeds Area for which Designation applies
Common name Scientific name
Absinth Artemisia absinthum Whole province
Barberry Berberis vulgaris Whole province
Barley, foxtail Hordeum jubatum Whole province
Bellflower, creeping Campanula rapunculoides Whole province
Buckthorn, European  Rhamnus frangula Whole province
Burdock, common Arctium minus Whole province
Burdock, greater Arctium, lappa Whole province
Burdock, woolly Arctium, tomentosum Whole province
Campion, biennial Silene dioica Whole province
Catchfly, night-flowering Silene noctiflora Whole province
Cleavers Galium aparine Whole province
Cleavers, false Galium spurium Whole province
Cockle, white Silene alba Whole province
Dandelion Taraxacum officinale Whole province
Dodder  genus Cuscuta Whole province
Fleabane, Canada Conyza canadensis Whole province
Flixweed Descurainia Sophia Whole province
Hawk’s-beard, narrow-leaved Crepis tectorum Whole province
Hemlock, poison Conium maculatum Whole province
Hemp-nettle Galeopsis tetrahit Whole province
Hoary-cress Cardaria draba Whole province
Jimsonweed Datura stromonium Whole province
Kochia Kochia scoparia Whole province
Lamb’s quarters Chenopodium album Whole province
Lettuce, prickly Lactuca seriola Whole province
Milkweed, common Asclepias syriaca Whole province
Milkweed, showy Aslepias speciosa Whole province
Mustard, wild Sinapis arvensis Whole province
Nightshade, American black Solanum americanum Whole province
Nightshade, cutleaf Solanum triflorum Whole province
Nightshade, hairy Solanum sarachoides Whole province
Parsnip, wild Pastinaca sativa Whole province
Ragweed, common Ambrosia artemisifolia Whole province
Ragweed, false Iva xanthifolia Whole province
Ragweed, giant Ambrosia trifida Whole province
Sow-thistle, annual Sonchus oleraceus Whole province
Sow-thistle, perennial Sonchus arvensis Whole province
Sow-thistle, spiny annual Sonchus asper Whole province
Stinkweed Thlaspi arvense Whole province
Stork’s bill Erodium cicutarium Whole province
Thistle, bull Cirsium vulgare Whole province
Thistle, Canada Circium arvense Whole province
Thistle, Russian Salsola pestifer Whole province
Toadflax, yellow Linaria vulgaris Whole province
Water hemlock, bulb-bearing Cicuta bulbifera Whole province
Water hemlock, northern  Cicuta virosa  Whole province
Water hemlock, spotted Cicuta maculate Whole province
Water hemlock, western Cicuta douglasii Whole province
Whitetop, hairy Cardaria pubescens Whole province
Whitetop, lenspod Cardaria chalepensis Whole province