Like many other pests, corn rootworm (CRW) is ahead of schedule this year. Adult beetles will be emerging this week or next. Anyone considering trapping for adults as part of […] Read more
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Tag Archives corn rootworm
Corn pests to watch over the next month
OMAFRA Field Crop Report for the week of July 15
By the numbers – corn rootworm in 2023
Populations were lower but intensity in some regions was higher
Concerns about corn rootworm have increased in the past two years as numbers continue to rise across the province, particularly in areas where corn is a feed source for livestock. […] Read more
Silage growers urged to protect feed supply from Bt-resistant corn rootworm
Pest has caused significant yield loss in both Canada and the U.S.
Some livestock producers in the U.S. corn belt have had to make a difficult and costly decision. They’ve harvested their silage corn for grain to salvage some financial return. Now […] Read more
Concerns grow over control-resistant pests
Corn rootworm and spider mites top list of concerns in summer 2022
Two significant insect pest problems have occurred this year, both stemming in part from building resistance to controls. Corn rootworm tops the list, according to Tracey Baute, field crop entomologist […] Read more
Advanced corn hybrid with an RNAi trait to launch in Canada in 2023
SmartStax Pro builds on existing SmartStax trait
Glacier FarmMedia – Resistance to corn rootworm is becoming a bigger concern as populations continue to develop resistance to existing Bt Cry proteins. Three of the four proteins targeting corn […] Read more
Corn Rootworm trapping study will encourage crop rotation
Results show corn rootworm pressure highest in counties with corn on corn rotations
Corn fields in two southwest counties and one in the east are at the highest risk in Ontario of hosting Bt-resistant corn rootworm (CRW), according to results from a first-year, […] Read more
September forage report for Ontario
OMAFRA Forage Report for October 6
Ontario Hay Listings is a free classifieds service provided by the Ontario Forage Council. Producers looking to buy or sell hay or straw are encouraged to post an ad. In 2020 […] Read more
Lessons learned from U.S. struggle against corn rootworm resistance
Producers growing corn-on-corn encouraged to find new sources of feed
Specialists from the Ontario Ministry of Agriculture, Food and Rural Affairs recently urged the province’s corn-growing livestock producers to take the issue of corn rootworm resistance to Bt traits seriously. […] Read more
Silage options to rotate away from corn
Ryegrass, triticale, sorghum species all have potential to help avoid corn-on-corn rotations
In Europe, it’s ryegrass. On the Prairies, it’s barley. In areas where either climate or pesticide resistance makes it impractical to grow corn, livestock producers nonetheless achieve good gains or […] Read more
Signs of resistance to Bt trait emerging in corn
Farms with continuous corn are especially at risk and should scout their fields
Farmers are reporting challenges with Bt corn rootworm with unexpected injury caused by the pest. A Canadian Corn Pest Coalition (CCPC) release says that growers, especially those growing continuous corn, […] Read more