Category: Corn Disease, Weeds & Insects

Corn School: Managing vomitoxin in the field and the silo

Agronomist Peter Johnson has been visiting cornfields and elevators to get a handle on the extent of vomitoxin levels in the Ontario corn crop. In this episode of RealAgriculture’s Corn School, Johnson discusses Ontario’s recent Grain Corn Ear Mould and Vomitoxin (DON) Survey, and notes that some samples coming off the combine have tested as… Read more »

Corn School: Harvest quickly to limit losses to gibberella

If you’re noticing a little fuzzy trouble with your corn crop this year — you’re not alone. With rainfall after rainfall at pollination (but not before!), the weather created perfect conditions for gibberella infection and spread. If you’ve scouted your corn crop and have found pink mould growth at the tip of the cob, chances are… Read more »

Corn School: Will wet weather bring late-season disease?

Ontario Ministry of Agriculture, Food and Rural Affairs plant pathologist Albert Tenuta is gearing up for his annual pre-harvest corn disease survey, and he’s optimistic leaf disease will not have a significant impact on the 2018 corn crop. Some growers have raised concerns that a rainy late July and August could lead to a flood… Read more »

Corn School: Learnings from a 10-year fight with western bean cutworm

It’s been 10 years since the presence of western bean cutworm (WBC) was confirmed in Ontario. Since then, the yield-robbing pest has moved beyond provincial hotspots such as Bothwell, Thamesville, and the sandy soils of Tillsonburg, and it continues to march eastward through to Quebec and into the Maritime provinces. Ontario Ministry of Agriculture, Food… Read more »

Corn School: Fungicide application timing on a variable corn crop

Ontario corn growers will have plenty of variables to consider as they plan fungicide applications in the weeks ahead. An extended five-week planting season has produced huge variability in the crop, with current maturity ranging from the two- to eight-leaf stage depending on where you farm in the province. In this episode of RealAgriculture’s Corn… Read more »

Corn School: Time to trap western bean cutworm

Have you set your western bean cutworm (WBC) traps yet? Setting traps is the most effective means of determining whether the yield-robbing pest is setting up shop in your cornfields. In this episode of RealAgriculture Corn School, OMAFRA field entomologist Tracey Baute shows growers how to set traps and discusses the growing importance of the WBC Trap… Read more »

Corn School: Will drone sprayers fit your farm?

Is the clock ticking on the future of your ground sprayer? Could it eventually be replaced by a swarm of UAV sprayers that could better target weeds and deliver herbicide to exact locations in the field? These are questions we explore with AGRIS Co-operative agronomist Dale Cowan on this episode of RealAgriculture’s Corn School. Cowan recently… Read more »

Corn School: Protect cob row numbers for highest yield potential

How important is the number of rows on a corn cob? When row numbers shrink from 20 to 18 you could be looking at a 20-bushel per acre yield loss, says Illinois-based BASF agronomist Jeremy Hogan. On this edition of RealAgriculture’s Corn School, Hogan breaks down four components of yield – protecting row numbers, maximizing ear… Read more »

Corn School: Understanding 30 years of rising yields

Ontario will set a new corn yield record in 2017 with the crop expected to hit an average of 180 bu/ac or better. Where is all that yield coming from? Corn physiologist Dr. Thijs Tollenaar has poured over the data and identified three key factors driving corn yield improvement. A long-time University of Guelph professor… Read more »

Corn School: Evaluating late-season northern corn leaf blight control

With late planting and slow maturity, much of Ontario’s corn crop may be in for a challenge as leaf diseases arrive in fields across the province. In this episode of RealAgriculture Corn School, we catch up with Ontario Ministry of Agriculture, Rood and Rural Affairs (OMAFRA) field pathologist Albert Tenuta in his leaf disease nursery… Read more »

Corn School: Could 2017 be another vomitoxin year?

A late-maturing crop, difficult environmental conditions, significant insect pressure and potential for late-season leaf disease…although too early to tell – this growing list of factors could lead to another year of high vomitoxin levels in the Ontario corn crop. In this episode of RealAgriculture Corn School, OMAFRA plant pathologist Albert Tenuta takes a look at the… Read more »

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 »