An entomologist with Manitoba Agriculture says flea beetle populations usually start dying off around this time of year.

John Gavloski notes as crops advance, they become less susceptible to feeding.

"With canola, usually once you have three or more true leaves on the plant, the plants are going to be able to grow well enough to compensate for any feeding. A lot of fields until this week were still at that cotyledon or one or two true leaf stage. With the dry conditions, things were moving slow in some cases. Now we've got a bit of moisture, the canola is growing well. In most fields, the canola is going to be able to compensate well and outgrow any additional feeding."

Gavloski says cutworms should also start to decline, depending on the species. He notes dingy and redback were the two most common types this year.

Grasshoppers are now starting to emerge, however Gavloski says the recent rains might help keep the population low.