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Maximizing fungicide use
First of all, herbicide spraying is easy. There are a large number of modes of action available. Weeds are targeted in wide open spaces with no canopy covering the weed. On the other hand, spraying...
View ArticleKeep an eye out for white mould in Ontario’s dry bean crops
Dry beans are either approaching flowering or have already started flowering across Ontario. White mould is an important disease of dry beans in Ontario, and in-crop management of white mould occurs...
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Suppressing sclerotinia under irrigation
Managing sclerotinia disease on irrigated land is difficult, as over 50 per cent of the crops grown are usually hosts for the disease. Additionally, the favourable disease environment under irrigation...
View ArticleMaximum residue limit established for cleavers herbicide in canola
Grain companies have omitted quinclorac from 2018/2019 declaration forms. Wade Sobkowich, executive director of the Western Grain Elevator Association, says growers can use herbicides containing...
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Sponsored: Fall burndown benefits
Crucial control of perennial weedsFor many Ontario growers, fall is the ideal time to manage troublesome perennial weeds. “There are plenty of research trials across North America that show if you...
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Glyphosate-resistant weeds in Ontario
There are now 41 glyphosate-resistant weeds in the world. Seventeen of those occur in the United States. There are six species in Canada, and four of those occur in Ontario. In Ontario,...
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Managing resistance with sprayer application technology
But last year, I read a paper in Weed Science by Parsa Tehranchian that changed the way I looked at things. Tehranchian et al. did a study where they showed that in three generations, sublethal...
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Terminating cover crops
Annual ryegrass is one of those cover crops. Kris McNaughton, a researcher at the University of Guelph in Ridgetown, Ont., says there are many reasons producers might choose annual ryegrass as a cover...
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How do weeds spread?
Yet weeds keep popping up and considering that the list of herbicide-resistant weeds is growing, and many have become resistant to more than one mode of action, it’s natural to want to blame herbicide...
View Article2018 Seasonal Insect Pest Summary released
Other unexpected pests included thrips and corn rootworm. The hot growing season resulted in scouting for stink bugs, tarnished plant blug and spider mites late into the season, which are pests that...
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Expanding weed control options for seed corn
Last year Ontario producers planted about 17,500 acres, but a few years ago acreage reached a peak of 33,000 acres in the province. It’s partly due to that level of production that acres are down now,...
View ArticleInnovative flea beetle control
“There was a fair amount of foliar spraying and some re-seeding,” Gavloski says. “Flea beetles seem to have overwintered quite well and were out in high numbers, plus the canola was stressed due to dry...
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Refining cabbage seedpod weevil thresholds
This was later revised to three to four per sweep, and then modified again to 20 weevils per 10 sweeps (two per sweep). Now, new research and a change in philosophy on economic thresholds have the...
View ArticleNew BASF herbicide for lentils, peas, soybeans and corn
Heat Complete’s two modes of action – Group 14 and Group 15 – provide broad-spectrum burndown of tough weeds, including cleavers, volunteer canola, kochia and wild buckwheat, as well as extended...
View ArticleIntensive wheat management
There is the opportunity to intensify rotations that may provide higher yields, improve protein, or offset the impacts of diseases such as Fusarium head blight (FHB) with higher yielding varieties....
View ArticleElevore herbicide now registered for Canada fleabane control
The Pest Management Regulatory Agency (PMRA) recently approved the registration of Elevore herbicide, a new tool that provides consistent, pre-plant burndown control of glyphosate-resistant Canada...
View ArticleAlberta insect forecast and survey maps now available
Scott Meers, insect management specialist with Alberta Agriculture and Forestry, explains what the pest forecast maps and surveys indicate. Overall Meera indicates that the wheat midge threat has...
View ArticleHealth Canada stands by glyphosate safety decision after reviewing objections
The re-evaluation decision from 2017 stated that “glyphosate does not present unacceptable risks to human health or the environment when used according to the revised product label directions,” and...
View ArticleSyngenta receives registration for new herbicide for Roundup Ready 2 Xtend...
Tavium is a pre-mix of dicamba (Group 4) and s-metolachlor (Group 15), the active ingredient in Dual II Magnum herbicide. It can be applied pre‑plant or pre‑emergence in Roundup Ready 2 Xtend soybeans...
View ArticleBASF launches insecticide for use in Canadian soybeans and potatoes
BASF launches its Sefina insecticide for use on soybean and potato crops in 2019 to protect against aphid pests. Sefina utilizes a unique mode of action, Group 9D active ingredient Inscalis, to quickly...
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