Tar spot has been spreading across North American corn growing regions ever since the leaf disease was first detected in 2015. Characterized by tar-like speckling on the upper surface of corn leaves, the fungal pathogen can deliver yield hits ranging from 20 to 60 bushels per acre (in highly infected fields). On this episode of… Read More
Category: Tar spot
Fungicides are a key tool in the tar spot management toolbox. But what’s the best time for growers to apply a fungicide to get optimal control of the disease and the best return on their crop protection investment? On this episode of the RealAgriculture Corn School we catch up with Ontario Ministry of Agriculture, Food… Read More
Wednesdays are for Wheat Pete’s Word! This late August episode of the Word features some yield estimates with a discussion on whether to over- or under-estimate, a first look at fungicide pay-back on wheat, the mightiness of rye in rotation, and why waterhemp is a menace. Have a question you’d like Johnson to address or… Read More
Host Lyndsey Smith is tackling gibberella and tar spot management in this episode of The Agronomists, with guests Ken Currah of BASF and Greg Stopps of Corteva. This episode of The Agronomists is brought to you by ADAMA Canada, the Mind Your Farm Business podcast, and the Wheat School! Don’t forget to apply for your… Read More
Protecting yield potential from northern corn leaf blight (NCLB) and a newer pest, tar spot, requires being well-armed and ready to apply the right fungicides at the right time. That’s because these diseases are not only big yield robbers, but the window to provide adequate control is quite narrow, and gets narrower with certain weather… Read More
After a methodical march north from the Corn Belt, tar spot has now gained a foothold in Ontario. Last year, the yield-robbing leaf disease was confirmed in five counties in the southwestern, stretching from Essex to Simcoe. Characterized by tar-like speckling on the upper surface of corn leaves, the fungal pathogen has been delivering yield… Read More
It’s time for the season finale of Ontario Diagnostic Days! The annual Ontario field crop diagnostic days held at Ridgetown, Elora, and Winchester are again virtual in 2021. On this live broadcast, University of Guelph professors Dave Hooker and Francois Tardif join host Shaun Haney to talk three hot topics that are sure to grab growers’… Read More
Tar spot is taking a bite out of yields in some Ontario corn fields but there is hope that growers will have effective tools to manage the leaf disease. Characterized by tar-like speckling on the upper surface of corn leaves, the fungal pathogen has been delivering yield hits ranging from 20 to 60 bushels per… Read More
It’s time for Day 7 of Ontario Diagnostic Days! The annual Ontario field crop diagnostic days held at Ridgetown, Elora, and Winchester are again virtual in 2021. Wheat and soybean fungicide tips, tar spot control in corn, manganese deficiency, plant growth regulators and double crop soybeans are all featured in this episode. We’ll kick it off with Ontario… Read More
The warnings about tar spot that started several years ago were, unfortunately, bang on. In this week’s episode of Wheat Pete’s Word, host Peter Johnson shares some scouting stories from several counties where tar spot has been found in corn, and what farmers will likely have to plan for in 2022. Also in this episode,… Read More
The host of Wheat Pete’s Word, Peter “Wheat Pete” Johnson, is urging Ontario wheat growers to get those final yields reported so we can say once and for all if the province set a new record average wheat yield. There’s that in this week’s Word, plus a frank discussion on revenge spraying fungicide, why the… Read More
Corn and soybean insects and disease are the focus of Day 3 of Ontario Diagnostic Days. The annual Ontario field crop diagnostic days held at Ridgetown, Elora, and Winchester are again virtual in 2021. On this episode, host Shaun Haney is joined by OMAFRA field crops entomologist Tracey Baute to discuss growing concern about corn rootworm… Read More
There is tremendous yield potential in Ontario corn fields right now. With recent rainfalls, subsoil moisture has been replenished and the crop has jumped in the last few days. Great looking acres and strong corn prices both weigh into the decision to apply fungicides. In this Corn School episode, Bernard Tobin is joined by BASF… Read More
Soybeans are beginning to flower and corn is waist high in parts of Ontario, and it’s not even July. Crop staging, lush and humid canopies, and field history all play a key role in disease development and suppression, and our guests for this episode stress the importance of genetic selection and scouting as the first… Read More
Delaro Complete has been registered for use in Eastern Canada on corn, soybeans and cereals, according to Bayer CropScience. The new foliar fungicide combines three modes of action — Groups 3, 11, 7 — for protection against major corn, soybean, and cereals diseases. “Delaro Complete adds to the proven performance of Stratego PRO for even better… Read More