Category: Corn Disease, Weeds & Insects

Corn School: Managing western bean cutworm

It’s lining up to be a big corn pest year and the insect to watch for in the weeks ahead is western bean cutworm (WBC). In this edition of RealAgriculture Corn School, OMAFRA entomologist Tracey Baute explains that late planting across Ontario has left the young corn crop more susceptible to an increased number of… Read more »

Corn School: Fungicide strategies for 2017

When it comes to plant development and yield potential, Ontario’s corn crop is all over the map. With pollination quickly approaching, many growers are now wrestling with fungicide strategies for a highly variable crop. In this episode of RealAgriculture Corn School, BASF agronomist Ken Currah reviews the struggles of the 2017 crop and discusses where,… Read more »

Corn School: Can fungicides help minimize hail damage?

Ontario crops have experienced widespread hail damage in recent weeks and many growers are asking how they can minimize the yield impact. In this episode of RealAgriculture Corn School, agronomist Peter Johnson takes us to a field of eight-leaf corn that has been shredded by a recent hailstorm. He says at this stage, yield loss… Read more »

Corn School: Turning Agronomic Insight Into Yield Results

With corn planting just around the corner, it’s time to take stock of agronomic advice we learned this winter and take it to the field. In this episode of Real Agriculture Corn School, Bernard Tobin and Pride Seeds market agronomist Aaron Stevanus review research findings and agronomic management insights that emerged during the winter meeting… Read more »

Corn School: Taking a Bite Out of Western Bean Cutworm

Western bean cutworm took a big bite out of many Ontario cornfields in 2016 as high populations of the pest caused increased levels of fusarium and gibberella ear rot. With the pest expected to overwinter and be a threat again in 2017, many growers are asking whether they need to spray and when. Real Agriculture… Read more »

Corn School: Leaf Blight Defence Starts With Genetics

Choosing the right genetics is the most important decision growers make when tackling leaf diseases such as northern corn leaf blight (NCLB). Fungicides applied in-season can provide both curative and preventative benefits, but the battle to fend off yield-robbing leaf diseases starts with your seed choice explains, OMAFRA field pathologist Albert Tenuta. In this episode… Read more »

Corn School: Harvest Quickly to Fend off Steep Downgrades

Ontario’s corn crop is showing high vomitoxin levels and growers are being urged to harvest as quickly as possible to preserve corn quality. Last week, the OMAFRA Field Crops team revealed that 26% of the samples taken in its annual vomitoxin survey had DON concentrations of 2.0 ppm or greater. At these levels, vomitoxin produced… Read more »

Corn School: Gibberella Infection Pathways & Breeding for Resistance

Did you know in-bred(parent) corn lines are short wee things? And that gibberella genetic resistance is a multi-gene trait? If ever you’ve been curious as to where hybrid corn lines originate, this latest Corn School is for you. RealAgriculture’s Lyndsey Smith visited Ottawa’s Central Experimental Farm to meet with Dr. Lana Reid, corn breeder for Agriculture… Read more »

Corn School: Protecting the ‘Factory’ Best Defence Against Leaf Disease

Leaf disease can strike anywhere on a corn plant, but where does it take the biggest bite out of corn yield? In this Real Agriculture Corn School episode, OMAFRA plant pathologist Albert Tenuta explains that diseases such as northern corn leaf blight (NCLB) and grey leaf spot typically take root in field residue where pathogens… Read more »

Corn School: Managing the Spread of Goss’s Wilt in Manitoba

Goss’s Wilt, a bacterial infection caused by gram positive bacteria, Clavibacter michiganensis subsp. nebraskensis (CMN), is on the move in Manitoba. The disease was first found near Roland in 2009, and in 2015, 35 of 64 corn fields surveyed tested positive. In this episode of the Corn School, Pratisara Bajracharya of Manitoba Agriculture describes some of… Read more »

Corn School: Big Plans for 2016 with WheatPete and AgBern

Put down your popcorn, buckle your seatbelt and hold on as Real Agriculture’s Bernard Tobin and Peter Johnson rip through a 2016 Corn School preview. What’s up for Corn School 2016 on Real Agriculture? Where will we go? What will we cover? Who will you see? You’ll get it all in three minutes. The 2016… Read more »

Corn School: Want to Grow 500-Bushel Corn? Stop The Insanity

If farmers want to supersize their corn yields, they have to challenge conventional thinking and become students of the crop. That was the main message National Corn Growers Association yield contest champion Randy Dowdy shared with hundreds of farmers at the 2016 SouthWest Agricultural Conference in Ridgetown, Ontario earlier this week. In 2014, Dowdy set… Read more »

Corn School: 4 Options for Ordering Treated Seed this Fall

Confused about what the new rules governing neonicotinoid-treated corn and soybean seed means for seed orders this fall? You’re not the only one — the Ontario government is hosting information sessions and webinars this week, but several questions and plenty of confusion swirl about what paperwork you must do to access neonic-treated seed. To help… Read more »

Corn School: Rating & Recording Hybrid Susceptibility to Northern Corn Leaf Blight

We’re approaching a critical stage for corn — tasseling — and weather conditions in some areas are conducive to high disease development. Recently in the Corn School, we’ve talked prioritizing fields for a fungicide application and where and how to scout for leaf disease in corn, but did you know that there’s another factor at… Read more »

Corn School: Making the Most of an Uneven Stand

Following frost and challenging weather conditions, it’s not uncommon to find wide staging variability in Ontario corn fields this year. Uneven development will complicate timing of fungicide and insecticide applications, notes Dale Cowan, senior agronomist with AGRIS Cooperative, in this installment of the Corn School. “You have to get an idea of what percentage of the… Read more »