Insect Pests
With planting delayed briefly due to rain, it is the perfect time to get out and set up some wireworm bait stations. Soil temperatures are quite warm now and recent University of Guelph Ridgetown Campus research has found that spring is the better time to successfully bait for wireworms. Tracey…
Specialists at Alberta Agriculture and Forestry (AF) are working to have fields predetermined for the 2018 insect survey season and are looking for assistance from agrologists and producers across Alberta. This year, the survey teams would like to check pea and wheat fields. They will survey for pea leaf weevil…
Cabbage seedpod weevil is an invasive insect pest of canola. Originally found in Europe, the insect proliferated in the United States and was first confirmed in Alberta in the mid-1990s.
A midge by any other name is still a midge – but it’s not swede midge. That’s the finding of scientists with Agriculture and Agri-Food Canada (AAFC), University of Guelph and the Canadian Food Inspection Agency (CFIA). Swede midge had been confirmed by CFIA in 2007, but what had previously…
Cutworms are present across the Prairies, and in some years some species of cutworms can reach levels that are of economic concern in field crops. The focus of a five-year project conducted across the Prairies resulted in the development of better identification tools, a better understanding of cutworm biology and…
Cutworms are a complex of several pest species that affect multiple crops grown in Canada. A few species can cause economic damage in cereal and oilseed field crops. Researchers are working to find efficient monitoring tools that can determine distribution of cutworms and alert growers to impending outbreaks, while excluding…
The alfalfa weevil (Hypera postica) is turning into a bigger challenge for some alfalfa growers. Populations of the insect pest in the Rosemary area of Alberta (about 170 kilometres east of Calgary, near Brooks) have been confirmed as resistant to the Group 3A synthetic pyrethroid insecticide Matador. By extension, those…
Figuring out how to fight a fairly new pest, like the western bean cutworm (WBC), is a bit like preparing to face off against a new sports opponent. “If you’re going to compete in a sport, the best thing to do is study your opponent’s strengths and weaknesses, and then…
Pea leaf weevil is an invasive pest species that first hit Alberta in 1997 and has since continued to spread across Canada.
As swede midge populations continue to rise in Quebec, canola growers are looking for better ways to manage the pest. Entomologist Geneviève Labrie is leading a two-year research project to help advance integrated management strategies for swede midge.
Plant-parasitic nematodes are hidden yield robbers. But research and monitoring efforts are helping to uncover their secrets. Plant pathologist Albert Tenuta conducted a survey of soil-dwelling nematode species in Ontario crops and his ongoing collaborative research looks to improve management strategies for these microscopic, worm-like pests.  
Flea beetles (Phyllotreta spp.) in canola and cutworms continued to be at economical levels in many areas of Manitoba in 2017. Aphids were at high levels and resulted in insecticide applications in small grain cereals, field peas and soybeans. Diamondback moth (Plutella xylostella) were controlled in many canola fields. Bertha…
Evidence of feeding in 2017 once again was over a wider range than in previous years. The range of pea leaf weevil activity has expanded dramatically in central Alberta since 2013.The annual pea leaf weevil (Sitona lineatus L.) survey was carried out in late May and early June, 2017. The…
The wheat midge forecast for 2018 shows an overall lower level of wheat midge across Alberta. There is very little risk of midge in the Peace Region, with the lowest level of midge found in the survey since the outbreak in 2013. Individual fields or small pockets of wheat midge…
Earlier this summer (Week 14), true armyworm, Lepidoptera: Noctuidae: Mythimna unipuncta, was reported on the lower west coast and a summary was provided by Tracy Hueppelsheuser from the B.C. Ministry of Agriculture.Hueppeisheuser kindly provided an update to the situation.... The initial true armyworm damage reported earlier did not relent and…
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