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flea beetles
Crops, Local news

Be on the lookout for three early-season crop pests

MAFRD entomologist John Gavloski has advice on flea beetles, 
cutworms and wireworms for Manitoba farmers

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Be on the lookout for flea beetles, cutworms and wireworms, all of which can take a bite out of yields early in the growing season, says John Gavloski, entomologist with Manitoba Agriculture, Food and Rural Development (MAFRD). Canola is especially vulnerable to flea beetle damage during the cotyledon to second true-leaf stage, Gavloski said during
cutworm
Crops, Local news

Summary of crop insects on Manitoba crops in 2014

Information intended to be useful for winter planning, preparations for next season

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A “Summary of Insects on Crops in Manitoba in 2014” is now posted on the MAFRD website. This report is based partially on observation by myself and my summer assistant. A large part of this information, however, is based on observations and reports from farm production advisors, agronomists, farmers, and others who contributed information over
A lygus bug in canola. Once seeds in the lower pods start to change colour canola crops are less susceptible to lygus bug damage.  photo: John Gavloski, mafrd
Crops, Oilseeds

Assessing canola’s susceptibility to lygus bug damage

The risk declines as seeds in the lower pods start to change colour

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Lygus bugs are still showing up in canola fields, but if seeds on the lower pods are changing colour then spraying with an insecticide is probably uneconomic, says John Gavloski, an entomologist with Manitoba Agriculture, Food and Rural Development. “The plant can compensate well unless there’s very, very dry conditions,” he said in an interview
Soybean aphids on the back of a soybean leaf. The white spots are discarded soybean aphid skins. The economic threshold for spraying to control soybean aphids is 250 aphids per plant and rising.
Crops, Oilseeds

Soybean aphids found near Morden, but don’t panic

They've finally arrived, but the pest isn't likely to cause economic damage this season

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The first soybean aphids of the season have been found near Morden but there are so few and it’s so late they are unlikely to be an economic pest this season, says Manitoba Agriculture, Food and Rural Development’s entomologist John Gavloski. “It’s happening very late so there could be some later-seeded fields that are still
Grasshopper on a sunflower under attack from red mites.
Crops, Forages, News, Oilseeds

Invasion of the body snatchers

Southwestern Manitoba grasshoppers being preyed upon by parasitic red mites

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This grasshopper munching on a sunflower in southwestern Manitoba is being devoured by parasitic red mites (Eutrombidium locustarum), says Manitoba Agriculture, Food and Rural Development (MAFRD) entomologist John Gavloski. The mites feed on the blood (hemolymph) of grasshoppers. They also prey on grasshopper eggs. Each female mite can lay up to 4,000 eggs, providing mite
flea beetle damage on a leaf
Crops, News, Oilseeds

Later canola seeding could mean less flea beetle damage

In addition to flea beetles, farmers should be scouting for cutworms, wireworms and grasshoppers

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Flea beetles are munching on Manitoba canola crops but a provincial entomologist says the damage may look worse than it is. If there’s more than 25 per cent feeding damage after the canola crop has been planted for at least three weeks, an insecticide application could be economic, John Gavloski said in a Manitoba Agriculture,
Forages, News

Manitoba grasshopper forecast for 2014

Grasshopper forecast based on population counts from last August

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John Gavloski, Entomologist for Manitoba Agriculture, Food and Rural Development, has released the Manitoba Grasshopper Forecast for 2014. The detailed forecast includes a: zone map of grasshopper densities table of grasshopper population trends table with data of Aug. – Sept. 2013 rainfall Click here to view or download the complete 2014 Manitoba Grasshopper Forecast.

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