Tar spot is a fungal disease of corn capable of causing significant yield loss. When it appeared out of nowhere in 2015, corn growers in the U.S. Midwest scrambled to manage the outbreak with few effective tools. Tar spot arrived in Ontario in 2021. The industry has since made progress toward management with fungicides, but […] Read more
Tag Archives fungicides — page 2
Illinois researchers seek weapons against tar spot in corn
Science Notes: The race is on to find genes that control tar spot resistance
New foliar fungicide controls major crop diseases
Bayer recently announced that Delaro Complete has been registered for use in Eastern Canada on corn, soybeans and cereals. The new foliar fungicide controls major corn, soybean and cereals diseases. Eric Comte, soybean and pulse crop and campaign marketing manager for Bayer said in a news release that Delaro Complete adds to the performance of […] Read more
Group 7 seed treatment protects against sudden death syndrome
Soybeans show more above and below ground biomass with the treatment
New fungicide seed treatment Saltro protects soybeans from sudden death syndrome and canola from airborne blackleg, new research indicates. The seed treatment, with the active ingredient Adepidyn, is a Group 7 fungicide belonging with the carboxamides. It works by moving through the plant’s water-conducting system and is taken into the cotyledons. Why it matters: New […] Read more
Fungicides not always an answer in alfalfa
Spraying could make sense when conditions are right for fungal disease
Farmers must weigh many factors before applying fungicides to alfalfa, said Christine O’Reilly, forage and grazing specialist with the Ontario Ministry of Agriculture, Food and Rural Affairs. Why it matters: Farmers have found that there have been advantages to using fungicides in corn and with approved options, are now looking at alfalfa. O’Reilly says the […] Read more
Fungicide reductions challenge potato growers
Spraying programs could double in cost in 2020
Regulatory changes by the Pest Management Regulatory Agency (PMRA) are limiting fungicide options for Ontario potato farmers. That means more cost and more chance of resistance, says Darin Gibson with Gaia Consulting Ltd. in Manitoba. He spoke on the topic at the 2020 Ontario Potato Conference held in Guelph March 5. Why it matters: The […] Read more
Syngenta launches five new fungicide products
Syngenta Canada recently launched Miravis, a lineup of five fungicide products designed to protect crops against several of the most destructive diseases facing Canadian farmers. Miravis fungicides are built with Adepidyn, a new Group 7 fungicide belonging to the carboxamide chemical class. Miravis fungicides are registered in Canada on multiple crops – including wheat, canola, […] Read more
Bees approved to deliver disease control
Ontario technology gets U.S. approval for bio-fungus delivery by bees
Glacier FarmMedia – Thirty years is a long time to wait. For John Sutton, the wait has been worth it because his novel idea from the late 1980s is finally coming to market. The United States Environmental Protection Agency recently approved a Canadian technology that uses bees to deliver a bio-control fungus that protects plants […] Read more
Timing fungicide applications on corn crops essential
Delayed maturity of corn may put it into more favourable conditions for disease development
Delayed maturity in corn throughout the province from late planting into challenging soil conditions is causing corn maturity to move into more favourable conditions for many diseases. Albert Tenunta, OMAFRA’s field crops pathologist and Dave Hooker, an associate professor at the University of Guelph’s Ridgetown College, said at the recent Ridgetown-based Crop Diagnostic Days that […] Read more
Fungicide re-evaluation has growers looking for alternatives
PMRA re-evaluation of chlorothalonil will make it more difficult to use
Chlorothalonil, a broad-spectrum multi-site fungicide active ingredient found in horticulture fungicides, has been re-evaluated by the Pest Management Regulatory Agency (PMRA) for all uses within agriculture and turf. It is part of PMRA protocol to re-evaluate pesticide products every 15 years, or sooner, as science evolves and new information, methodologies and approaches become available to […] Read more
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