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Tag Archives crop pests — page 2

A trap showing two Western corn rootworm beetles. If the traps averaged two beetles per day, this meets the threshold for developing Bt resistance if Bt hybrids are in the field.
Crops

Corn Rootworm trapping study will encourage crop rotation

Results show corn rootworm pressure highest in counties with corn on corn rotations

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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, grower-led beetle trapping project funded in part by Grain Farmers of Ontario (GFO). Tracey Baute, entomologist for the Ontario Ministry of Agriculture, Food and Rural […] Read more
Conditions in Eastern Ontario were ideal for aphid infestations last year. Effective control was achieved after tank-mixing insecticide with herbicide and fungicide.
Crops

Agronomy lessons learned in 2021

Production specialists discuss hail and frost, impact of a light winter, and other challenges

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Last year brought many surprises, including a few agronomic ones.  Agronomists and presenters Patrick O’Neill, Carrie Davenport and Hanna Petrovsky recently shared some of the challenges, wins and lessons observed during a year of extremes during the virtual Ontario Agricultural Conference.  The 2021 growing season started early for O’Neill, his colleagues and farmers in the […] Read more
Figure 1. Weekly WBC trap catches for Ontario. Peak flight occurred during the week of July 29th to August 4th.
Crops, News

Flight of the western bean cutworm

OMAFRA Field Crop Report for August 25

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It is safe to say that western bean cutworm (WBC) is a pest that we can rely on entering corn and dry beans every year in Ontario. Though a frustrating pest to scout for, using traps to monitor moth flight has helped us better predict when to expect peak moth flight occurs, which is shortly […] Read more
Figure 1 (left): Thrips are tiny and cigar shaped. Adults have fringed wings while the larva (above) are wingless. Figure 2 (right): Thrips feed on individual plant cells leaving scars along the leaf veins.
Crops, News

Much ado about crop pest insects

OMAFRA Field Crop Report for June 23

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It is proving to be another good insect year with several early season pests keeping everyone busy scouting to stay ahead of. Going into July and August, there are a few more pests that we need to keep watch for. Thrips continue to be spotted in soybeans, corn and wheat fields. There are several different kinds […] Read more
Just rotating pyramids of Bt traits won’t help as most of them are similar, say OMAFRA experts.
Crops

Lessons learned from U.S. struggle against corn rootworm resistance

Producers growing corn-on-corn encouraged to find new sources of feed

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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. They said efforts in the United States to slow the growth of resistance in corn rootworm to Bt-based control traits have not been effective. Why […] Read more
Fields in Huron, Perth and Durham counties have been identified with corn rootworm damage in Bt corn.
Crops, News

Signs of resistance to Bt trait emerging in corn

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

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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
Crops

VIDEO: Western Bean Cutworm

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

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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
Crops, News

VIDEO: Armyworm a growing concern in wheat

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

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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
Crops, News

Pest lessons learned in the 2019 Ontario crop year

Ontario Field Crop Report for the week of September 23

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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?
Crops

The largest soybean crop ever?

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

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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

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