Swede midge numbers low in Alberta

Swede midge larvae.
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There is good news from a survey of swede midge larvae this summer. The survey was conducted at 42 canola sites in central Alberta in July.

“Bottom line is that the survey found very low numbers of swede midge,” said insect management specialist Scott Meers. “As an example, we would typically find between one and five single bell-shaped flowers on 100 canola plants or 250 canola racemes.”

The results are shown on the swede midge survey map at agriculture.alberta.ca.

The survey will be repeated next summer to track the spread and measure the level of damage from this new invasive pest of canola.

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