In recent years, many corn growers in Ontario have wrestled with gibberella ear rot in the crop and the high levels of deoxynivalenol (DON) levels it can produce in the grain. It’s made for stressful harvest seasons, especially in 2018 when mycotoxins produced by the gibberella fungus in some fields climbed well above safe feeding… Read More

Tar spot was a little late arriving in Ontario cornfields in 2023, but the leaf disease ramped up post tasseling, and with an extended fall, took a late-season bite out of grain yields in southwestern areas of the province. Growers who sprayed fungicides to defend their crop against disease were rewarded with higher yields, reports… Read More

Growers and agronomists typically focus on the ear leaf at flowering when tissue testing corn to determine nutrient needs. But is that still the best choice for determining the optimal nutrient prescription for the crop as it moves into the reproductive stages? Purdue University professor emeritus Dr. Tony Vyn believes the evolution of modern hybrids… Read More

Corn growers often apply nitrogen later in the season to gain more control of the crop. At the V10 or V11 development stage, growers typically have a better understanding of how the crop is developing, its yield potential, the growing environment and what the market is willing to pay. There’s also logistics to consider —… Read More

Crop researchers can learn a lot in 28 years. That’s how long crop rotation trials have been on-going at the University of Guelph’s Ridgetown campus. On this episode of the RealAgriculture Corn School, host Bernard Tobin and University of Guelph crop researcher Dr. Dave Hooker look at the importance of crop rotation and key corn… Read More

As combines push through the Ontario corn crop, growers are being advised to focus their first harvest efforts on fields where gibberella fungus could produce higher levels of deoxynivalenol (DON) in the grain. On this episode of the RealAgriculture Corn School, agronomist Peter Johnson shares tips for identifying fields at higher risk for gibberella and… Read More

Good kernel set — from the tip to the butt of the ear — plays a key role in achieving high corn yield. But every year growers run into environmental and agronomic challenges the can lead to poor pollination, aborted kernels and a significant impact on yield. On this episode of the RealAgriculture Corn School,… Read More

Tar spot leaf disease has been a little tardy in 2023, but the later-arriving yield robber is still having an impact on the Ontario corn crop. Ontario Ministry of Agriculture, Food and Rural Affairs plant pathologist Albert Tenuta says a dry start to the growing year meant tar spot arrived a little late in 2023… Read More

A wet growing season plus high humidity and moisture at tasseling has many Ontario corn producers asking about the potential for ear mould and gibberella when combines start to roll at harvest. On this episode of the RealAgriculture Corn School, host Bernard Tobin is joined by PRIDE Seeds product manager Matt Chapple for a look… Read More

European corn borer wreaked havoc for decades in cornfields across North America before the adoption of transgenic traits (Bt) in the late 1990s effectively punched out the pest. Earlier this year at Southwest Crop Diagnostic Days at the University of Guelph’s Ridgetown campus, Ontario ministry of agriculture entomologist Tracey Baute noted that the yield-robbing insect… Read More

There’s plenty of crop management data available to growers in our mobile, connected world and it moves at ever-increasing velocity. On this episode of the RealAgriculture Corn School, AGRIS agronomist Dale Cowan looks at simple ways growers can tap into this data to make in-season management decisions and also run field trials to evaluate how… Read More

Can heavy July rains fuel nitrogen leaching and push the valuable nutrient beyond the reach of corn plant roots? That’s a question Ontario Ministry of Agriculture, Food and Rural Affairs corn specialist Ben Rosser has been hearing a lot lately as many areas of the province have been dealt a deluge of rain. On this… Read More

 

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