Alfalfa weevil is a major alfalfa pest in Ontario. Larvae feeding on alfalfa leaves can reduce both yield and forage quality. The simple answer As alfalfa gets taller it can tolerate more weevils before action is necessary to protect forage yield and quality. Action thresholds for managing alfalfa weevil are as follows: Stem Height Number […]
Photo: Low cutting heights increase the odds of soil contamination in the crop. Soil contamination shows up in ash contents above 9%. This can be prevented by raising the cutter bar. Fall and Winter Conditions Rain delays in 2017 pushed harvest in some areas into the critical fall harvest period. Root reserves that contribute to […]
Hay Cutting Height is a Management Tool Challenging growing conditions in 2016 and 2017 have weakened mature hay fields and put pressure on stands established during those years. When forages have been stressed it is a good time to think about how management practices can affect persistence and vigour. Cutting height is one factor that […]
Southwestern: Most alfalfa stands overwintered well; however those on heavy soils and in low-lying areas may have suffered winter injury. New seedings and annual forage acres are expected to increase this year in response to weather conditions over 2016 and 2017. As of May 27th, alfalfa weevils had reached 1st instar. Scouting is advised to identify […]