Soybean aphids don't always cause a problem thanks, in part, to effective control products. But aphid numbers are cyclical despite good control and additional control is sometimes needed. That said, the pest can be kept in check with high populations of beneficial insects present, making scouting and re-scouting a critical means of protecting the soybean... Read More
Category: Crop Schools
Ascochyta blight is a disease caused by three species of fungi, which are very difficult, if not impossible, to differentiate in the field. Fortunately, diagnosis of a specific pathogen causing ascochyta symptoms is not usually necessary, as control measures are very often the same. Out scouting? Look for purple-brown lesions on the stem, tendrils and... Read More
Manitoba has the not-so-great distinction of being the fusarium hot spot of the Canadian Prairies. This year, ample moisture and recent heat have combined to create a high-humidity soup pot of fusarium head blight growth and spread. Farmers in other provinces need to be on the look out as well, as the disease spreads west.... Read More
Guessing per cent bloom of a canola field from the field margin is a fantastic game to play for fun, but when it comes to sclerotinia control, if you're off even by 10% it could mean you miss the critical period for protecting petals. With warm to hot temps rolling across the Prairies, crops are... Read More
Fusarium head blight, or tombstone blight, is slowly moving west, and growers in regions not traditionally accustomed to fusarium are beginning to see premature bleaching/blighting of wheat heads and shriveled seeds caused by the pathogen. Fusarium doesn't just affect the grade and yield of a wheat field, it may also contaminate wheat kernels with mycotoxins... Read More
Damage from soybean cyst nematode can be minor, but once this pest is established in a field, it's there for good. Since being confirmed in Ontario about 15 years ago, the nematode moved throughout much of the soybean growing region. Knowing the nematode pressure level in your fields is essential to minimizing damage through the... Read More
Rust in cereals, and especially stripe rust, is a disease that it can be easy to allow to drop off the radar. After all, the spores are carried by wind and may not reach your growing region in time to really cause an issue. What's more, decent varietal resistance exists for many races of rust,... Read More
A cool start delayed corn planting in the U.S., so much so that there's a rumoured 78 million acres of soybeans in the ground down south. A late start means the critical pollination period of the crop — a huge factor in determining yield — into the typically hot weeks of late July. While the... Read More
Farmers and analysts alike will be watching Friday's USDA report for several reasons, and one of them will be the soybean acreage number. Poor planting weather in many corn-heavy U.S. states has many thinking the shift out of corn and into soybeans puts the total acres somewhere north of 77 million acres. If it's below... Read More
With a tight spray window and lots of ground to cover, farmers are always on the hunt for ways to cover more acres in a day. In a pinch, many will simply go faster, and, while that does work, it's not without increased risks or potential reduced product efficacy. Instead, Tom Wolf, sprayer specialist and... Read More