armyworm larva

What insect pests are bugging your forage crops?

Grasshoppers, cutworms and armyworms can cause major damage if left unchecked. Learn how to scout and manage them

Manitoba Agriculture entomologist John Gavloski highlights several key insect pests that can affect forage crop production and shares strategies for managing them.


two striped grasshopper

Grasshopper threat remains for Saskatchewan crops

Hot, dry conditions in mid- to late summer and well into fall were ideal for egg laying

Grasshoppers didn’t pose a serious threat to crops in most parts of Saskatchewan in 2024 — but a leading entomologist warned growers attending the recent Saskatchewan Agronomy Update conference not to be lulled into a false sense of security about the threat they could present this coming season. James Tansey, an insect pest management specialist […] Read more

The two-striped grasshopper has two pale stripes that extend from its eyes to the tips of its forewings and solid black stripes on its hind legs.

Label boost for Lumivia

Corteva’s insecticide seed treatment Lumivia CPL picked up a first-of-its-kind label expansion this summer. The company says the product — already registered for seed treatment of cereals, peas and lentils against wireworms, cutworms, armyworms and pea leaf weevil larvae — becomes the first insecticide seed treatment to cover suppression of grasshoppers. Lumivia CPL’s active ingredient […] Read more


Treating and not treating alternating strips of pasture with insecticides has been found to keep grasshoppers in check — while helping to maintain populations of the pest’s natural predators.

Reduced-area pest spraying can still hit moving targets

The RAAT method can cut insecticide use in half and still kill most grasshoppers on pasture

Glacier FarmMedia — Grasshoppers, as their name suggests, hop from place to place in grassy fields. Taking advantage of that natural behaviour, University of Wyoming scientists have devised a way to control grasshoppers on pastures with smaller volumes of pesticides. The method is called Reduced Agent and Area Treatments (RAAT), in which farmers apply an […] Read more

The young Packard’s grasshopper is green with black scattered dots that resemble pepper. The adult version seen here is grey to dark yellow with two light-coloured stripes behind the eyes and grey forewings.

Grasshoppers: Brace for impact

The past year was bad for grasshoppers on the Prairies and 2024 could be worse, experts warn

It’s still the middle of winter, but it’s never too early to think about grasshoppers. That was one message delivered at last month’s Canola Week annual meetings in Calgary, which brought together canola industry leaders from across North America. Meghan Vankosky, a field crop entomologist with Agriculture and Agri-Food Canada based in Saskatoon, spoke during […] Read more


‘Perfect storm’ for grasshoppers

‘Perfect storm’ for grasshoppers

The conditions are right for pest-type grasshoppers in Saskatchewan. Consider both insecticides and cultural controls

A provincial insect management specialist says grasshoppers could pose a significant challenge for farmers in Saskatchewan this season. During a June 14 webinar offering advice on managing grasshopper populations, James Tansey of Saskatchewan Agriculture said, “we’ve got a bit of a perfect storm for grasshoppers this year.” According to Tansey, warm and dry conditions in […] Read more

Pea leaf weevil. (Alberta Agriculture photo)

Insects posing problems in Saskatchewan crops

Grasshopper, flea beetle damage already reported

MarketsFarm – Although it’s still early in the growing season, some insect pests have already posed a threat to crops in Saskatchewan or could do so in the near future, according to James Tansey, provincial specialist for insects/invertebrate pest management. Among the pests he cited were grasshoppers, flea beetles and pea leaf weevils.  Tansey said […] Read more


Flea beetle. (Photo courtesy Canola Council of Canada)

Best to be scouting for insect pests

'Definitely' watch canola for flea beetles

MarketsFarm — Although it is still relatively early in the crop year, Manitoba entomologist John Gavloski strongly advises farmers to carefully watch their fields for any signs of insect pests. Gavloski couldn’t say for sure if insect damage was going to be bad this year but based on what’s transpired over the last three years, […] Read more

Wheat midge could be a concern this year in both Saskatchewan and Alberta.

Prairie insect pest outlook for 2023

Grasshoppers top the threat list but flea beetles, wheat midge, lygus bug, cutworms, bertha army worm and wheat stem sawfly are also risks in some areas

The Prairie Pest Monitoring Network (PPMN) warns grasshoppers could be a problem for producers in Manitoba, Saskatchewan and Alberta if hot, dry conditions during the growing season persist into 2023. The network’s annual grasshopper survey is conducted in late summer and early fall by estimating the density of adult insects, usually in ditches along cereal […] Read more