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Beneficial Insects

There are a number of beneficial insects in canola systems. Beneficial insects can be classified as predatory, parasitoid, or pollinator insects. As with small grains production, predatory and parasitoid insects benefit crops by controlling pest insect populations. Unlike small grain production systems, pollinators are an important aspect of canola production
Bee on a canola plant.


Cover of PNW751.

Pollinators in Canola in the Inland Pacific Northwest

Pollinators contribute widely to the growth and productivity of crops worldwide. Due to habitat loss, reduced food availability, increased parasite and pathogen pressure, and increased exposure to environmental toxins, these insects are facing steeply declining populations, which is causing global alarm. While a single approach to solving the pollinator crisis is unrealistic, canola grown in the inland Pacific Northwest region of the United States could have a major positive effect on wild bee populations. This region is exceptionally well suited for canola production, and canola provides extensive pollen and nectar food resources to bees. Canola production in the inland Pacific Northwest could aid bees—this region is dominated by cereal crops, which provide no food resources. At the same time, insect pollination from both wild bees and managed honey bees may increase canola seed yields, creating an economic boost for farmers. The aim of this article is to inform growers of the importance of pollinators in the canola growing region of the Inland Pacific Northwest and to provide crop management recommendations to facilitate habitat and food conservation for these pollinators.
Conference Presentations on Pollinators

Ladybug on plant.

Parasitic and Predatory Insects

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Samantha Crow
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