Publications

Spotted alfalfa aphid

Description

Presents a description of the spotted alfalfa aphid, describes the type of damage it can cause to alfalfa crops, and looks at biological and chemical methods of controlling the insect. This... More ≫

Description

Presents a description of the spotted alfalfa aphid, describes the type of damage it can cause to alfalfa crops, and looks at biological and chemical methods of controlling the insect. This species of aphid can be more serious on alfalfa than the pea aphid because it not only sucks out the juice of the plant, but it also injects a toxin into it.

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Bertha armyworm

Description

Bertha armyworm (Mamestra configurata) is one of the most significant insect pests of canola in Canada. The pest occurs throughout Manitoba, Saskatchewan, Alberta and the interior of British... More ≫

Description

Bertha armyworm (Mamestra configurata) is one of the most significant insect pests of canola in Canada. The pest occurs throughout Manitoba, Saskatchewan, Alberta and the interior of British Columbia. Severe infestations can occur throughout most of this area, but are usually (but not always) limited to the Parkland area of the Prairies and the Peace River region of British Columbia and Alberta. This document provide background, Life cycle, damage description and monitoring and control recommendations for the Bertha armyworm (Mamestra configurata).

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Cabbage seedpod weevil

Description

The cabbage seedpod weevil (Ceutorhynchus obstrictus) was introduced to North America from Europe about 70 years ago. The weevil was discovered in British Columbia in 1931, and from there, it... More ≫

Description

The cabbage seedpod weevil (Ceutorhynchus obstrictus) was introduced to North America from Europe about 70 years ago. The weevil was discovered in British Columbia in 1931, and from there, it dispersed south and eastward, so it now occurs throughout most of the United States. It was first found infesting canola in southern Alberta in 1995, and since then, the weevil has spread to central Alberta and southwestern Saskatchewan. In 2000, it was found in Québec for the first time.

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Grasshopper management

Description

Grasshoppers are a major pest of both cultivated crops and rangeland grasses in the world’s semi-arid regions. Traditionally drier areas like southern Alberta are more prone to recurring problems,... More ≫

Description

Grasshoppers are a major pest of both cultivated crops and rangeland grasses in the world’s semi-arid regions. Traditionally drier areas like southern Alberta are more prone to recurring problems, but serious grasshopper infestations can occur in cropland throughout the province. Although the majority of grasshopper damage has been to cereal grains, other crops can be seriously affected. This fact sheet provides information on significant species of grasshoppers in Alberta, including each specie’s significant food supply. Information is also provide on grasshopper control and the economic threshold at which control measures become viable.

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Grasshoppers : life cycle, damage assessment and management strategy

Description

Descriptions of clear-winged, Packard's, two-striped and migratory grasshoppers.

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Wheat midge

Description

The wheat midge (Sitodiplosis mosellana) is found in most areas around the world wherever wheat is grown. In recent years, significant damage to wheat crops has been reported in Alberta,... More ≫

Description

The wheat midge (Sitodiplosis mosellana) is found in most areas around the world wherever wheat is grown. In recent years, significant damage to wheat crops has been reported in Alberta, Saskatchewan, Manitoba, southern British Columbia, Minnesota, North Dakota and Idaho. All wheat varieties are currently susceptible to wheat midge, but some are more seriously affected than others. Although the midge also attacks other members of the grass family, including barley, couch grass, intermediate wheat grass and rye, infestations on these plants are usually not serious enough to warrant control. Research and breeding for wheat midge resistant wheat varieties is underway at the Cereals Research Centre (Agriculture and Agri-Food Canada Winnipeg) and the Crop Development Centre (University of Saskatchewan).

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Lygus bugs in Canada

Description

Lygus bugs are small, oval-shaped insects that feed on a variety of crops and weeds. Several species infest canola and alfalfa. This fact sheet includes a brief description of the bugs, identifies... More ≫

Description

Lygus bugs are small, oval-shaped insects that feed on a variety of crops and weeds. Several species infest canola and alfalfa. This fact sheet includes a brief description of the bugs, identifies their host plants, describes their life cycle, describes what type of damage they can cause, and outlines steps to determine when to take action and what methods can be used to manage the insect.

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Cabbage maggot

Description

Cabbage maggot arrived in North America from Europe in the 19th century and is now common throughout the Prairies. The insect can be a serious pest of cruciferous crops such as canola, mustard,... More ≫

Description

Cabbage maggot arrived in North America from Europe in the 19th century and is now common throughout the Prairies. The insect can be a serious pest of cruciferous crops such as canola, mustard, cabbage, rutabaga, radishes, cauliflower and broccoli.

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