Tar spot was first confirmed in Ontario at Ridgetown in the southwest corner of the province in 2020. Since then, the corn leaf disease has spread across Ontario, pushing east past Toronto and into Quebec. Many Ontario farmers experienced the yield robber in their fields for the first time in 2024 and the disease is… Read More
Tag: Albert Tenuta
Genetics and fungicides are the two pillars of disease defence when it comes to yield robbers like tar spot. But weather and technology also play a key role in helping growers defend their crops against the foliar disease. On this episode of the RealAgriculture Corn School, Ontario Ministry of Food, Agriculture and Agribusiness pathologist Albert… Read More
When growers discover soybean cyst nematode (SCN) in their fields, sudden death syndrome (SDS) may not be far behind. Those nematodes act as an enabler for SDS by creating an entry point for the disease pathogen to enter roots and infect the plant. That’s why it’s important for growers to employ an integrated management program… Read More
Field research shows that the best time to tackle tar spot with a fungicide is the VT/RI stage of corn development — when the tassel is visible and silks are emerging. That’s the case again this year, says Ontario Ministry of Agriculture, Food and Agribusiness plant pathologist Albert Tenuta. He’s been testing fungicide treatments to… Read More
Planting across Ontario is nearing completion in many regions, but excessive rain continues to stall progress in some areas, leaving farmers to contemplate switching intended corn acres to soybeans. It’s a decision that has significant cropping implications, says RealAgriculture agronomist Peter Johnson, and he wants growers to look at all the potential impacts before making… Read More
Thanks for tuning into this Tuesdays with Lyndsey edition of RealAg Radio with host Lyndsey Smith! On this episode we will hear: Discussion about planting corn into green cover crops; Spotlight interview with Colin Tchir for ADAMA Canada; A clip from The Agronomists with Mario Tenuta and Albert Tenuta on soybean cyst nematode management; and,… Read More
Soybean cyst nematode is a tiny but very destructive pest of soybean. It’s so damaging, that its presence can cause up to 25 per cent yield loss before symptoms are visible. Once SCN is in a field, it won’t ever go away — for Manitoba and points west, there’s still a chance to keep this… Read More
In recent years, many corn growers in Ontario have wrestled with gibberella ear rot in the crop and the high levels of deoxynivalenol (DON) levels it can produce in the grain. It’s made for stressful harvest seasons, especially in 2018 when mycotoxins produced by the gibberella fungus in some fields climbed well above safe feeding… Read More
Tar spot was a little late arriving in Ontario cornfields in 2023, but the leaf disease ramped up post tasseling, and with an extended fall, took a late-season bite out of grain yields in southwestern areas of the province. Growers who sprayed fungicides to defend their crop against disease were rewarded with higher yields, reports… Read More
Tar spot leaf disease has been a little tardy in 2023, but the later-arriving yield robber is still having an impact on the Ontario corn crop. Ontario Ministry of Agriculture, Food and Rural Affairs plant pathologist Albert Tenuta says a dry start to the growing year meant tar spot arrived a little late in 2023… Read More