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Ministry of Agriculture, Food and Rural Affairs

Weeds

As part of an IPM program it is important to scout for, and identify weeds, specifically during the Critical Weed-free Period, the short time when weed interference can cause large yield losses.

Choose an icon below for more information or browse the weed gallery.

Scouting for weeds Scouting for weeds Critical weed-free period
Critical weed-free period
Broadleaf morphology
Broadleaf morphology
Grass morphology
Grass morphology


Weed Gallery

Broadleaf

Common Chickweed
Common chickweed
Common Groundsel
Common groundsel
Dwarf Snapdragon
Dwarf snapdragon
Field Violet
Field violet
Lady's thumb
Lady's thumb
Lamb's-quarters
Lamb's-quarters

Mallows
Mallows

Mustards
Mustards
Nightshades
Nightshades
Pigweed
Pigweed
Purslane
Purslane
Ragweed
Ragweed
Spreading Atriplex
Spreading atriplex
Wild buckwheat
Wild buckwheat
   

Grasses

Barnyard Grass
Barnyard grass
Crab Grass
Crab grass
Fall Panicum
Fall panicum
Foxtails
Foxtails
Long-spined sandbur
Long-spined sandbur
Quack Grass
Quack grass
Wire-stemmed muhly
Wire-stemmed muhly
 

Perennials

Annual sow thistle
Annual sow-thistle
Canada goldenrod
Canada goldenrod
Canada Thistle
Canada thistle
Clammy Groundcherr
Clammy Groundcherry
Common milkweed
Common milkweed
Creeping Charlie
Creeping Charlie
Dandelion
Dandelion
Dog-strangling vine
Dog strangling vine
Field Bindweed
Field bindweed
Field horsetail
Field horsetail
Mouse-eared Chickweed
Mouse-eared chickweed
Plantains
Plantains
Poison ivy
Poison ivy
Sheep Sorrel
Sheep sorrel
Toadflax
Toadflax
Tufted vetch
Tufted vetch
Virginia creeper
Virginia creeper
Wild grape
Wild grape
Wood-sorrel
Wood-sorrel
Yellow Nut Sedge
Yellow nut sedge