Skipped plants in a corn row aren’t always due to mechanical error or seedling blights. Early insects like wireworm or grubs can kill plants rather stealthily, leaving gaps in a row or neat leaf damage, while cutworm can clip off a patch of plants overnight. Knowing which insect causes what damage is important when assessing… Read More
Category: Corn Disease Weeds Insects
Do you manage your corn crop differently, based on whether or not you’ll be using a fungicide or topped-up nitrogen rates? That may end up being a new recommendation, as research is beginning to offer clues on how each input works with the other — sometimes providing not just additive benefits, but synergistic ones (think:… Read More
Farmers fought hard (sometimes through deep snow that disappeared soon after) to get the 2014 Ontario corn crop off, but there’s as much as 5% of the crop still standing. There’s really nothing you can do about the crop being out until the snow finally melts, but farmers who have been keeping eye on their… Read More
If you’ve noticed increasing levels of northern corn leaf blight in some of your fields, it could be that the hybrids you’re planting don’t have the right gene to resist infection. That’s because the pathogen has evolved to bypass some of the older sources of resistance, says Albert Tenuta, field crop pathologist with the Ontario… Read More
Farmers still have a bit of time to evaluate their fields for levels of grubs and wireworms, two key pests that will factor in to the need for a neonicotinoid pesticide seed treatment. And that’s good news, because the deadline to ordering fungicide-only corn seed is rapidly approaching. Most companies have a mid- to late-November… Read More
The corn borer is a relatively low-level pest in much of the corn crop in Western Canada, but it certainly poses a risk. What’s more, just because you planted a corn borer-resistant variety doesn’t mean you get out of scouting — every farmer who grows corn should be scouting for the pest, says John Gavloski,… Read More
Growing a bumper crop of corn requires a big meal of plant nutrients. But if you’re going to feed a hulk of a plant, you’ve got to make sure you protect it too. Fungicides may not always be warranted, but if the yield potential is there and conditions are right for disease development, a fungicide… Read More
If it’s not raining, maybe it’s time to tromps through the corn field. It doesn’t take long for weed pressure to accumulate in a crop, especially in conditions where the crop canopy is slow to close. But deciding on a re-spray is every bit as complicated as deciding what to spray. Assessments should include staging, health, invasiveness… Read More
In part one of our top 10 list of corn production tips, Greg Stewart, Corn Specialist with the Ontario Ministry of Agriculture & Food presented us with a 1-5 list that was fairly data-driven. This time around, with the exception of number 6, the list revolves more around exploring ideas and concepts on your farm…. Read More
What’s the best call for adding potash? How much bang for your buck do you get from seed-placed blends? Are protected N sources worth the cost? Greg Stewart, corn specialist with the Ontario Ministry of Agriculture and Food, recently presented the top 10 corn production tips from 10 years of research and monitoring, and some… Read More