Fields in Huron, Perth and Durham counties have been identified with corn rootworm damage in Bt corn.

Signs of resistance to Bt trait emerging in corn

Farms with continuous corn are especially at risk and should scout their fields

Reading Time: 2 minutes 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, are reporting that control is failing to some trait providers and research and extension scientists. Corn rootworm (CRW) has historically been one of the most […] Read more

VIDEO: Western Bean Cutworm

Field Talk with Matt Rundle: Ideal timing for scouting of WBC is now

Reading Time: < 1 minute On this edition of Field Talk, Farmtario reporter Jennifer Glenney, speaks with Matt Rundle, sales agronomist with Harriston Agromart, about Western Bean Cutworm scouting. Rundle says the ideal timing to scout this nasty pest is now. Peak moth flight, and egg masses are the best things to look for within grower’s fields. Western Bean Cutworm […] Read more

VIDEO: Armyworm a growing concern in wheat

Field Talk with Johanna Lindeboom: How to scout for this crop pest

Reading Time: < 1 minute Cool and wet April weather along with thunderstorms are ideal for armyworm, a hay and wheat pest, to migrate north to Ontario. There are minimal options for dealing with armyworm, so proper scouting is a must as this crop pest has been quickly appearing in Ontario fields. In this edition of Field Talk, Farmtario reporter […] Read more

Pest lessons learned in the 2019 Ontario crop year

Ontario Field Crop Report for the week of September 23

Reading Time: 3 minutes We all agree that this has been one of the most challenging cropping years in Ontario, but there were some pest lessons learned from the experience. Effect of delayed planting Delayed planting can reduce the risk of some early season pests. Pests like bean leaf beetle (BLB) move into the earliest emerging fields first. With […] Read more

The largest soybean crop ever?

The switch away from corn due to late planting and a wet spring could mean record soybean acres

Reading Time: 3 minutes Planting of the Ontario soybean crop was still underway in early June, with time left in the planting window. Horst Bohner, soybean specialist at the Ontario Ministry of Agriculture, Food and Rural Affairs, said that about five per cent of the crop had been planted by end of May. However, some better weather in June […] Read more


A juvenile gray garden slug munches on a soybean plant, from the presentation John Tooker gave at FarmSmart recently in Guelph.

Taking out slugs without more insecticides

Slugs can be a challenge in minimal and no-till fields, where greater tillage isn’t an option

Reading Time: 3 minutes Most of the acreage in Pennsylvania is no-till and that means slugs can be a huge issue. This has become such an issue that growers are reverting to using more tillage, said John Tooker, of the department of entomology at Penn State University He spoke at the recent FarmSmart Conference at the University of Guelph. […] Read more

Wheat plants that overexpress a corn methyltransferase gene cannot regulate their defence adequately and become susceptible to aphid attack.

Cereals use chemical defences against insects

Science Notes: Plants rely on their toxins not only to fend off caterpillars but also to regulate defence mechanisms against aphids

Reading Time: 2 minutes A team of scientists from the University of Bern in Switzerland and the Max Planck Institute for Chemical Ecology and partners have characterized multiple functions of benzoxazinoids in wheat. The toxic form of the substances makes the plant directly resistant to lepidopteran larvae, whereas a less toxic form regulates indirect defence mechanisms against aphids. Scientists […] Read more

There are numerous updated images used in the app.

Aphid Advisor crop-scouting app updated

The app now makes it easier for crowd-sourced data to help make decisions on whether to spray

Reading Time: 3 minutes There’s been an evolution over the past few years in the way Ontario’s soybean farmers view the sharing of data online, say developers of some just-released updates to the Ontario-based Aphid Advisor crop-scouting app. Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA) Field Crops Entomologist Tracey Baute says there are now fully updated versions […] Read more


Edible bean fields close to corn fields with high levels of Western Bean Cutworm will often be infected too. 
 Photo: Courtesy Jennifer Bruggeman and UGRC

Western Bean Cutworm taking on more than corn

Reading Time: 3 minutes Western Bean Cutworm is now the most economically significant pest in corn, but it’s quickly becoming a challenge in other nearby crops, especially dry beans. Why it matters: Scouting for Western Bean Cutworm (WBC) is much more challenging in dry beans than corn, so knowing the status of nearby corn fields and increasing moth trap […] Read more

Some soybean aphids showing up so scout your fields

Reading Time: 2 minutes Soybean aphids are being found in some soybean fields near Portage la Prairie and some fields have been sprayed, while others are being monitored, Red Beard Farms aerial applicator Chris McCallister said in an interview July 27. The threshold for applying an insecticide to control soybean aphids is 250 and rising. The “rising” part is […] Read more