GFM Network News


Flea beetles were aggressive feeders in 2019, leading to multiple spray passes for some farmers.

Year in review: Keep an eye out for these critters in 2020

Entomologist John Gavloski says these should be on your radar

Based on what went on in Manitoba fields this past season, producers may want to be on the lookout for several insects in 2020 that could potentially make a reappearance. At the top of the list are flea beetles, cutworms and grasshoppers, according to Manitoba’s provincial entomologist, John Gavloski. Speaking at the recent Manitoba Agronomists

Provincial entomologist John Gavloski outlines the province's pest grasshoppers during Crop Diagnostic School in Carman July 9.

Young grasshoppers’ patience rewarded

Producers are in their sprayer cabs again, this time after grasshoppers

Manitoba’s weather has been good for grasshoppers in the last three years, and now some fields are paying the price. “Right now, there’s pockets in the province that do have some very high levels of grasshoppers,” provincial entomologist John Gavloski said. “There’s quite a bit of edge spraying going on where people are trying to


Dust flies behind a farmer’s harrows just east of Winnipeg on May 14, 2019.

Seeding on schedule but dry conditions concern

Pasture lands and forage crops are struggling to emerge because of cool, dry conditions

After an early start, followed by weather delays, seeding progression is on par with average, according to Manitoba Agriculture. “Last Saturday I got burned by the weatherman,” said Morris-area farmer Rolf Penner on May 14. He expected a storm, so he stayed parked. When rain barely materialized, he was left feeling behind schedule. Still, Penner

Many rural Manitoba homeowners were plagued by Asian lady beetles last fall through the winter and into this spring.

Respite from the ‘lady bugs?’

There were fewer aphids in Manitoba crops this year so Asian lady beetle populations should drop too

Those pesky Asian lady beetles, the bane of rural Manitoba homeowners, aren’t expected to be nearly as plentiful this fall because there haven’t been as many aphids for them to feed on, says Manitoba Agriculture entomologist John Gavloski. “The ladybird beetles were abundant last year because they had lots of food,” he said in an

So far only six of 99 bertha traps indicate risk.

Trap counts in the black for bertha army worm, diamondback moth surge

Manitoba’s trap counts remained in the low risk classes until mid-July, when diamondback moth populations started to reach threshold in some fields

*[UPDATED: July 24, 2018] Anyone worried about bertha armyworm will welcome the provincial trap counts so far, but some farmers may be spraying for diamondback moth. Diamondback moth is the only one of the two to report threshold populations, according to both trap data and Manitoba Agriculture entomologist John Gavloski. Eighty-eight out of the province’s


Ideal flea beetle weather hits canola fields hard

Flea beetle damage has been enough to tip the scales for some producers considering reseeding their canola

Canola growers are reaching for the insecticide or, in some cases, extra seed after a spring that has been friendly for the flea beetles, but less than optimal for the crop. Justine Cornelsen, western Manitoba agronomy specialist with the Canola Council of Canada, says she has heard some farmers intending to reseed after their first

Masses of multicoloured Asian lady beetles often form in darker, concealed locations, says Manitoba Agriculture entomologist John Gavloski.

Getting bugged

Last year was a particularly bad outbreak, but that won’t necessarily carry over

Homeowners were aghast last fall when nightmarish numbers of Asian lady beetles descended on their doorsteps, then made themselves right at home — indoors. These bugs “completely enveloped” their new home one day last September, recalls Susan Mooney, a retired public health nurse who lives with her husband on a rural acreage near Carman. “They

A lygus bug prepares to wreak havoc on a canola plant.

Be on the watch for insect-issue bleed over

Manitoba Agriculture’s 2017 insect summary may give 
producers an idea of what to scout for, as well as any rotation changes to avoid pest woes next season

Last year’s pest problems may give an idea of what to be on watch for next season. The insect summary for 2017 is in, and Manitoba Agriculture entomologist John Gavloski says the report may give producers valuable insight when planning scouting and, in some cases, rotations. Aphids unknown Not all insects carry over in the


Multicoloured Asian lady beetles search around the outside of a house in south-central Manitoba, looking for a good spot to spend the winter.

Weathering the swarm

Lady beetles were a welcome addition to the field this summer, but the overwintering habits of one non-native species now has some rural residents irked

They’re on walls. They’re on ceilings. They’re on cups left in cupboards and anything left outside. If you’re in south-central Manitoba and feel something crawling on your arm, chances are it’s a lady beetle. The annual swarm is nothing new to rural Manitobans during September and October, but populations are particularly hearty this year with

European corn borer has been a sporadic problem in Manitoba since the pest was discovered here in 1948.

Fighting European corn borer? Manitoba Agriculture wants to hear from you

There’s been no Bt resistance yet in Manitoba’s European corn borer population, 
but entomologist John Gavloski is keeping a sharp eye out

John Gavloski is back on the hunt for European corn borer (ECB). The provincial entomologist hopes to collect 50-100 larvae from Carman-area fields this year, part of a long-standing project to monitor resistance to Bt (Bacillus thuringiensis), a toxin-producing bacteria and the most commonly cited ECB management method. Bt is either used as a spray,