Publications

Economic thresholds for insects attacking oilseeds

Description

Many economic thresholds for insects attacking oilseed crops currently in use are nominal (i.e. unsupported by research). Some economic thresholds have been developed for major pests attacking... More ≫

Description

Many economic thresholds for insects attacking oilseed crops currently in use are nominal (i.e. unsupported by research). Some economic thresholds have been developed for major pests attacking crops in Western Canada. The following data have been compiled from various sources, including the guidelines published by the Western Committee on Crop Pests, and indicate the economic threshold recommendations being made.

Tags

Lesser grain borer

Description

The lesser grain borer (Rhyzopertha dominica) is a grain-feeding insect found sporadically in southern Alberta. It is distributed worldwide, and in Canada, it has been reported from British... More ≫

Description

The lesser grain borer (Rhyzopertha dominica) is a grain-feeding insect found sporadically in southern Alberta. It is distributed worldwide, and in Canada, it has been reported from British Columbia, across the prairies and into Ontario and Quebec. However, this insect is rare in Canadian stored grain, and it is unlikely the insect can survive the entire winter in farm bins in western Canada.

Tags

Wireworm

Description

Wireworms are destructive insect pests of grain crops in western Canada. The pest prefers cereal crops, but also feeds on potatoes, pulses and canola. The wireworm larva feed below ground on seeds... More ≫

Description

Wireworms are destructive insect pests of grain crops in western Canada. The pest prefers cereal crops, but also feeds on potatoes, pulses and canola. The wireworm larva feed below ground on seeds and shoots.

Tags

Diamondback moth

Description

Diamondback moth, Plutella xylostella (L.), was introduced to North America from Europe about 150 years ago. The insect now occurs throughout North America, wherever its host plants are grown.... More ≫

Description

Diamondback moth, Plutella xylostella (L.), was introduced to North America from Europe about 150 years ago. The insect now occurs throughout North America, wherever its host plants are grown. Diamondback moth larvae feed on all plants in the Brassicaceae family, and in Alberta, canola and mustard are its primary targets.

Tags

Potato psyllid

Description

The potato psyllid is a small, winged insect and is one of approximately 100 species of psyllids in North America. It reproduces mostly on the potato and other members of the nightshade family... More ≫

Description

The potato psyllid is a small, winged insect and is one of approximately 100 species of psyllids in North America. It reproduces mostly on the potato and other members of the nightshade family including tomatoes and peppers, and can cause psyllid yellows in potatoes, resulting in chlorosis, stunted plants and small misshapen tubers. This fact sheet provides information on the life cycle of the insect, its host plants and potential crop damage it can cause, monitoring practices, advice on when to take action, and best management practices to mitigate the damage caused by the beetle.

Tags

Cereal leaf beetle

Description

The cereal leaf beetle is an invasive insect from Europe that feeds on cereal crops, including wheat, barley and oats. It was first discovered in Alberta in 2005 and is now widespread throughout... More ≫

Description

The cereal leaf beetle is an invasive insect from Europe that feeds on cereal crops, including wheat, barley and oats. It was first discovered in Alberta in 2005 and is now widespread throughout the southern part of Alberta. A new population was reported south of Edmonton in 2011. This fact sheet provides background information on the beetle, including its life cycle, host plants and crop damage. It includes information on determining when to take action, what types of action can be taken to control the beetle, and best management practices.

Tags

Pea leaf weevil

Description

The pea leaf weevil (Sitona lineatus) is an introduced insect pest that feeds on a wide range of legume species, and may reduce yields of field pea and faba bean crops. First recorded in Alberta... More ≫

Description

The pea leaf weevil (Sitona lineatus) is an introduced insect pest that feeds on a wide range of legume species, and may reduce yields of field pea and faba bean crops. First recorded in Alberta in 2000, this serious pest is expanding its range from British Columbia and the northwestern United States into the southern prairies of Alberta and Saskatchewan.

Tags