Category: Northern corn leaf blight

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 »

Wet weather prompts warning about northern corn leaf blight

If above average moisture continues through June, growers should start scouting early for northern corn leaf blight (NCLB). Rob Miller, BASF’s technical development manager for eastern Canada, says NCLB can appear as early as the 8-10 leaf stage in a wet season. Lesions appear on the lower leaves and move upwards, as the infection often… 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: 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 »

Syngenta Launches Fungicide With Three Modes of Action

Syngenta has announced plans to bring the first three-mode-of-action foliar fungicide to farmers in Eastern Canada this spring. Trivapro features three active ingredients, including one new active — azoxystrobin (Quadris – Group 11), propiconazole (Tilt – Group 3), and benzovindiflupyr (Group 7 SDHI), known as Solatenol. Solatenol was approved for use on corn, soybeans and… Read more »

Wheat Pete’s Word, July 8: Hot Hay, Market Bounces, Greenseeker Tech & Disease Control Tips

The hay crop, white mould, norther corn leaf blight, and nitrogen management tools are all high on farmers’ radars this week as we head into the first full week of July. To kick off this week’s Wheat Pete’s Word, Peter Johnson, RealAgriculture agronomist, has a word of caution about the hay crop. Wet ground is… 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: How to Triage Your Fields for Fungicide Application Timing

You have several corn fields and only one of you — how do you prioritize which field gets fungicide first? 2015 is shaping up to likely be a high disease pressure year, says Albert Tenuta, field crop plant pathologist with the Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA), and a little planning now… Read more »

Corn School: How Well Does Your Hybrid Stand up to Northern Corn Leaf Blight?

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 »

Agronomy Geeks Ontario — Ep. 13: What We’re Learning About Northern Corn Leaf Blight

Just like there are many strains of the common cold and the flu, plant diseases can be caused by “races” of the same pathogen. Northern corn leaf blight is one disease that has at least 13 strains — four to six of which affect corn crops in Ontario. In this episode of the Agronomy Geeks… Read more »