Managing Weed Seeds in Manure Where manure is applied there often seems to be higher weed pressure. The question: does manure fertilize the weeds already in the seed bank or are the seeds brought in with the manure? Consider that there are up to 15,000 weed seeds per square foot in the soil seed bank according […]
Some areas saw a bit or a lot of rain this past week but likely not enough yet to reduce our risk of spider mites in soybeans and dry beans. What is very concerning is that samples collected last year from 10 fields in southern Ontario all were resistant to dimethoate (Lagon or Cygon). The […]
Did you know that there are two new resources on strip-tillage in Ontario? Earlier this year, OMAFRA released two factsheets on strip-till with information specific to Ontario’s climate, soils, and farmer experiences. The first factsheet, called Strip-Tillage in Ontario: The Basics, provides an overview of strip-till, how it works, crops it’s used for, its benefits […]
More growers are noticing northern corn leaf blight (NCLB) – the most common corn leaf disease in Ontario. A proactive and integrated approach to management will mitigate significant financial losses. The simple answer Regular scouting is the best way to identify increases in the severity of NCLB. Ontario research has shown that an effective fungicide […]
Tar spot, a corn leaf disease that can cause significant yield losses, was first found in Ontario in 2020. It has since been found over a wider geographic area. Here’s an overview of what is currently known about best management practices. The simple answer Tar spot is here to stay. In the U.S. corn belt, […]
With some soybean fields in early flowering, it is time to scout fields for soybean aphids. Early planted fields tend to be the first to be colonized. The mom aphids start depositing nymphs in pockets in the field that start to build populations of up to 1000s per plant. Once these pockets of aphids get […]
Spring canola across the province is currently at or beyond full bloom. Observations from around the province at this stage are that spring canola is looking better overall than it has in recent years, particularly in Timiskaming District where the majority of the crop is grown. Little to no swede midge damage was observed in […]
As corn approached VT stage, it is the ideal time to start putting up the corn rootworm sticky traps. We are asking everyone participating this year to monitor and change traps weekly, on approximately 7 day intervals, so that we can properly calculate the # of beetles per trap per day. It will also help […]
Enhancing Corn & Soybean Yields in Ontario How adding complexity to crop rotations and diversity to tillage practices can benefit corn and soybean growers long term. Gone are the days of grandpa getting the tractor and 3 furrow plow out to work the whole farm each fall after harvest. For decades now, producers have been […]
South and West According to Agriculture and Agri-Food Canada: Bruce, Grey, Dufferin, Simcoe, Niagara, Elgin, and parts of Lambton and Middlesex received average or above average precipitation for June. The rest of the region had below-average rainfall. Above-average levels of winterkill reduced yields in affected fields. Although some dairy producers cut on their preferred calendar […]
Spring Roundup As we close out the 2022 spring planting window, for the most part we see crops in good shape, but as always, there are regional differences. Alfalfa in western and southwestern Ontario suffered a great deal of die out this winter. Farmers had to make quick plans to address this issue. Alternatively, alfalfa […]
Description Blister beetles are very rare in Ontario but have been occasionally found in alfalfa fields north of Lake Erie. They are more common in arid climates, such as the U.S. Midwest, and are often associated with grasshopper infestations. The three most common species are the black blister beetle (Epicauta pensylvanica), the ash grey blister […]
Nitrogen (N) dynamics are always complicated, but manure adds a few layers of complexity. Nitrogen availability is impacted by soil texture, soil moisture, organic matter levels in the soil, form of N applied and of course, the weather. An application of liquid finisher hog manure applied ahead of planting would be expected to provide about […]
Conditions Regions of Eastern Ontario saw heavy rainfall throughout the evening of June 21. Reports of anywhere from half an inch (15 mm) in the Eastern Lanark area to close to 5” (127 mm) of rain in parts of Renfrew were the kickoff to the last breakfast meeting for the region for the 2022 growing […]
Insect/Pest Update – Current Issues Cereal leaf beetle (CLB) populations have reached threshold in some spring cereal fields this week (Figure 1). CLB larvae and adults feed on the tissue between leaf veins, leaving long scratch marks that can make plants appear silver or frosted from a distance. Before boot stage, the threshold is an […]