James from Parkville writes
What temperatures are suitable? What is the date range in the spring for optimum results?
Per the label, if Defendor Herbicide is applied in extreme growing conditions such as drought or near freezing temperatures prior to, at, or following time of application may reduce weed control. With any post emergent you want to be sure to apply when tempss are consecutively below 85 degrees. You can also contact your local cooperative extension office for specific timing in your area.
Answer last updated on: 03/18/2020