As temperatures warm, fields across the west are starting to see flea beetle emergence, and cotyledon defoliation. And that has producers wondering about when to take action. “There’s been some discussion about different threshold levels,” says Errin Willenborg, agronomist with Federated Co-op Ltd. The discussion stems from confusion around two listed thresholds — the 25… Read More

Highly competitive crops that make it difficult for weeds to gain a foothold in fields play a key role in effective herbicide resistance management. One way to make your crop more competitive is to increase seeding rates to produce higher plant populations. In this episode of RealAgriculture’s Resistance Management School, University of Manitoba weed scientist… Read More

The combination of increased soybean acres and high soybean aphid pressure on the prairies in 2017 has sparked conversations about thresholds, beneficial insects, and how to decide when spraying is warranted. The economic threshold for soybean aphids in Canada has traditionally been 250 aphids per plant on 80 percent of plants, with the population still… Read More

Most of the yellow patches in soybean fields in Western Canada and the northern U.S. have disappeared as the plants have recovered, or turned necrotic and died, but one of the big questions heading into harvest is: what toll did widespread issues with iron deficiency chlorosis (IDC) earlier in the season take on yields? The… Read More

Mario Tenuta has been studying greenhouse gas emissions in agriculture for longer than he’s willing to admit. Never before has he seen this much interest in the topic. “We’ve always had interest in carbon sequestration and the use of nitrogen fertilizers and manures, but now where we are called to some form of action and reductions, now… Read More