Common ragweed: biology and control
This post will serve as a repository for the latest in the integrated management of common ragweed in field crops. […]
2017 Grain Corn Ear Mould and Vomitoxin (DON) Survey
Co-Authored with Albert Tenuta, Field Crop Pathologist, OMAFRA OMAFRA field crop staff with the assistance from members of the Ontario Agri-Business Association (OABA) have completed the annual Provincial corn ear mould and mycotoxin survey. These mycotoxins, particularly vomitoxin (DON) produced primarily by Gibberella/Fusarium ear moulds can be disruptive when fed to livestock, especially hogs. The […]
OMAFRA Field Crop Report – October 5, 2017
Fall Weed Management Tips Many farmers have witnessed the value in applying herbicides in the fall to perennial weeds, especially perennial sow-thistle and dandelion (Figure 1.). Often they will see a reduction in their population the next year as well as a delay in their shoot emergence. This allows the planted crop to have a […]
OMAFRA Field Crop Report – September 28, 2017
New Online Version for Inspection of Soil Pest Assessment Reports (PAR): Those requiring access to Class 12 Pesticides Neonicotinoid (NNI) treated corn and soybean seeds) are required to submit an Inspection of Soil Pest Assessment Report to their seed vendor prior to the purchase of the seed. There is now an online version of the […]
OMAFRA Field Crop Report – September 21, 2017
Plan to Assess Field for Ear Rot and Mycotoxin Risk With assistance from the Ontario Agri Business Association (OABA) and funding through the Grain Farmers of Ontario, Ontario Ministry of Food and Rural Affairs (OMAFRA) and Agriculture and Agri-Food Canada (AAFC) will begin sampling grower corn fields to determine ear mould incidence and occurrence of […]
Making Soybean Silage
Co-author: Horst Bohner, Soybean Specialist In 2017, wet growing conditions have made it difficult to put up high quality forages. A wet spring delayed planting in many regions, and the cool summer and an early frost may prevent some soybeans from reaching their full potential as an oilseed crop. These circumstances may encourage producers to […]
OMAFRA Field Crop Report – September 14, 2017
Best Management Practices for Late Planted Winter Wheat With many soybean fields across the countryside just starting to change colour, harvest is not likely to begin anytime soon. A cool, wet spring delayed soybean planting in much of the province and cooler temperatures in August and September have pushed harvest back this fall compared to […]
OMAFRA Field Crop Report – September 7, 2017
Gauging Corn Growth Stage for Frost Risks With a later than normal planting window and a summer growing season seemingly short on summer weather, some growers have been monitoring their corn growth stages and asking about gauging the risks associated with corn maturity and frost, particularly those who planted very late or have longer maturity […]
Soil fertility benefits of wheat in rotation
Before long, the 2018 winter wheat crop will be seeded across the province (Figure 1). Long-term research at the University of Guelph’s Ridgetown campus shows that winter wheat in rotation provides an additional 10 bushels per acre to corn and 5 bushels to soybeans. At current crop prices, that means an extra 107 dollars per […]
Ontario Field Crop Report – August 31, 2017
Managing Phosphorus to Reduce Losses Phosphorus (P) is an essential plant nutrient. Sufficient phosphorus fertility means improved root growth and winter hardiness, accelerated maturity, and improved yields. However, when phosphorus makes its way off of fields through runoff or tile drains, it can negatively impact the health of rivers and lakes. Lake Erie is the […]
Ontario Field Crop Report – August 24, 2017
With the delay in growing degree day accumulation and crop maturity, many fields are still in the ideal growth stages that put them at risk of some of our later season pests and diseases. Western bean cutworm (WBC) Peak moth flight for western bean cutworm has finally passed for all regions of the province. Central […]
Keeping an eye out for Trochanter mealybugs in soybean
Author: Julia Mlynarek, Research Scientist – Field Entomology, AAFC-Harrow The Trochanter mealybugs Pseudococcus sorghiellus (Forbes) are small (at most 2mm), whitish, wax-covered insects that feed on plant roots (Fig. 1). Because of their size and life history, they are often overlooked but have been found in Southwestern Ontario. Trochanter mealybugs are part of a family […]
The Season is Not Over Yet for Late Season Pests Like Bean Leaf Beetle, Soybean Aphids and Others
Despite it being the middle of August, some pests are not showing signs of wrapping this season up. Bean leaf beetle are a particular concern in food grade IP and seed soybeans and edible beans across Ontario. As are pod piercing pests like stink bugs and tarnished plant bugs. Soybean aphids are also increasing in […]
Ontario Field Crop Report – August 17, 2017
Parts of southwestern Ontario remain dry, while eastern Ontario continues to have frequent rainfall and saturated soils in many areas. While yields have been good, making dry hay continues to be a struggle for many growers under the later conditions. Winter wheat harvest has continued this past week in eastern Ontario. Most fields in the […]
Western Bean Cutworm Still A Concern For Edible Beans & Late Corn
We are still seeing WBC trap counts going up in most counties north and east of Perth. That means that WBC moth flight has not yet peaked in those counties. This is important because this also means that we haven’t reached peak egg laying in those counties and that there are a wack of moths […]