Can a dicamba be used on my lawn? I have many old trees.
Thank you for the question. Dicamba is a broad spectrum herbicide that interferes with the way plants grow causing them to grow in abnormal, uncontrolled ways, often causing them to die. There are many different formulations so you need to read the entire label of the product you have and look for the list of weeds approved for use. Herbicides can land on unintended plants such as tree leaves and roots causing harm or death so please follow application instructions exactly. There is risk of harm to your trees if you use Dicamba within the dripline or it "drifts" on leaves. Read about it here: http://kentcoopextension.blogspot.com/2008/05/landscape-herbicide-damage-to-trees.html
Here's a general fact sheet on dicamba: http://npic.orst.edu/factsheets/dicamba_gen.html
Thank you for contacting Extension.