Chemical Control of Hemp Dogbane Soybeans Cultivation will suppress growth. Roundup Ultra ropewick applications provide fair control of top growth only. Corn Research was financially supported by the Corn Marketing Program of Michigan. Later applications may be made with drop nozzles. 2 Overall effectiveness of the treatment is greatest if shoot emergence is complete at time of application.
Short emergence is highly dependant on environmental conditions.
Fall treatments should follow wheat harvest or non-cropped sites should be mowed in July. To protect yourself and others and the environment, always read the label before applying any pesticide. This publication contains pesticide recommendations based on research and pesticide regulations. However, changes in pesticide regulations occur constantly. Some pesticides mentioned may no longer be available, and some uses may no longer be legal.