Get set to scout this summer. After a few years of low profile in Manitoba, cabbage seed pod weevil populations, among a few other pests, boomed here in 2025.
Tag Archives lygus bugs
Cabbage seed pod weevil the surprise top canola pest in Manitoba for 2025
Flea beetles, armyworm, diamondback moth made presence known in parts of the province
Carbine gets green light against lygus bugs
Product gets emergency approval for use in confection sunflowers
Manitoba farmers have emergency approval to use Carbine against lygus bug infestations in confection sunflowers. The Manitoba Crop Alliance noted the allowance in a press release July 28. “The need for an emergency use registration was identified in the wake of the re-evaluation of lambda-cyhalothrin product use in Canada, which left a void in lygus bug control
![“[Flea beetle] seem to overwinter well under our Prairie conditions and we don’t have the natural enemies that seem to knock a population out, the way it does to other insects.” – John Gavloski.](https://static.manitobacooperator.ca/wp-content/uploads/2023/02/09102252/Flea-beetles_Brent-Schram_cmyk-660x420.jpeg)
The year in pest insects on Manitoba fields
There were many of the usual suspects and some strange new issues in Manitoba fields last season
Flea beetles and grasshoppers topped provincial entomologist John Gavloski’s list as the peskiest insects on Manitoba farms this past season and he said producers should be on the lookout for them next year. In addition, “we’ve got three aphid species this year along with your army worms, lygus and cutworms, but our biggest surprise of the year
Re-thinking Lygus bug thresholds
Producers may want to ease off Lygus bug control in lower populations
Canola growers should be keeping a different threshold in mind when it comes to gauging damage from Lygus bugs. Provincial entomologist John Gavloski says the most recent research on Lygus bug damage pegs a threshold of 20 to 30 bugs per 10 sweeps of the scouting net, much higher than previously considered. “It is something
Crop insect concerns low, some soybean crops report brown spot
Manitoba Insect and Disease summary for August 17
Summary Insects: Insect pest concerns are currently low. Most canola crops are now past the stage where Lygus bugs would be of concern. Only trace levels of soybean aphids have been found so far. Grasshopper counts have so far generally been low. Plant pathogens: Various diseases continue to be reported in field crops.. Disease Update Corn:
Lygus bugs reach economic thresholds in canola fields
Manitoba Insect & Disease summary for July 27
Summary Insects: Lygus bugs around economic threshold levels have been noted in a few canola fields in eastern Manitoba. Banded sunflower moth adults have also been noted; late bud to early bloom stage is when sunflowers should be monitored for seed feeding insects like banded sunflower moth, Lygus bugs, and red sunflower seed weevils. Trace levels of soybean aphid have been found on soybeans near Fannystelle and Lac du Bonnet;
Flea beetles, cutworms top list of insects bugging Manitoba farmers in 2015
Alfalfa weevils, army worms, corn borer, soybean aphids and lygus bugs showed up in some fields too
Insects didn’t take a massive bite out of Manitoba crops in 2015, but there were some nibbling problems caused mainly by flea beetles and cutworms, says Manitoba Agriculture, Food and Rural Development entomologist John Gavloski. Alfalfa weevil populations were high enough in many alfalfa fields to cause economic damage and army worms were a concern
Fusarium levels low, soybean aphid numbers increasing
Manitoba crop insect and disease update for August 4, 2015
Plant Pathogens: Levels of fusarium head blight are being reported as low in many areas. Increased levels of mycosphaerella are being reported in later seeded field peas in the southwest as a result of the cooler and wetter conditions. Some soybean fields are showing increasing damage due to excess moisture and subsequent root rots. Weather conditions have been conducive for
Manitoba Crop Report and Crop Weather report: Issue 14
Conditions as of August 4, 2015
Winter wheat and fall rye harvest is underway in Manitoba. Preliminary reports indicate winter wheat yields range from 60 to 85 bu/acre, with low levels of fusarium damaged kernels in harvested samples. There are also a few fields of spring wheat, barley and field peas harvested last week. Swathing or preharvest applications in the earliest-seeded spring
Manitoba crop insect and disease update
Summary of conditions as of July 28, 2015
Plant Pathogens: At the Crop Diagnostic Lab there are canola plants coming in with blackleg and sclerotinia. Some soybeans have been showing root rot – rhizoctonia and fusarium. Some sunflower fields are showing basal and mid-stalk sclerotinia. Some flax fields are showing pasmo lesions on stem and leaves. Insects: Levels of armyworms are starting to decline in some fields as
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