Herbicide Resistant Weed Maps
This post will serve as a primary resource for the status of herbicide resistant weeds along with testing services and expertise provided to Ontario agriculture. […]
Tag: resistance
Canada fleabane control pre-plant in soybean
There is some confusion on the approach for managing glyphosate resistant Canada fleabane in soybeans. I provide two scenarios that have been often asked this past winter and their solutions based on the learnings of Dr. Peter Sikkema’s applied research program out of the University of Guelph (Ridgetown campus). Scenario # 1: No-till soybeans with […]
Winchester AgBreakfast Minutes – April 14, 2015
Conditions: Moderate temperatures at the end of winter, combined with limited precipitation minimized spring water runoff and soil erosion. Soil is drying slowly, allowing for only limited field activity to date. Alfalfa: Winter survival generally looks excellent. Alfalfa has 1 to 2 inches of new growth at this point and is showing no sign of […]
Winchester Ag Breakfast Meeting Notes – April 15, 2014
Conditions: More rainfall in region south and east of Ottawa over the April 12th weekend. Fields are generally saturated. Upper Ottawa Valley has drier conditions. Moisture from snow melt got away with very little ponding in most areas. Alfalfa: Winter survival looks good to date. Alfalfa has 2 to 3 inches of new growth at […]
Why pre-plant herbicides are so critical in soybean production
If you grow soybeans and have had all or either of Canada fleabane, common ragweed and giant ragweed growing in your fields, the use of pre-plant herbicide tank-mixes will be your best chance at achieving good control of these weeds. Management options for these three weeds are either limited or do not provide acceptable control […]