By surveying weeds in late spring or early summer, you can identify summer species that escaped previous control efforts and identify newly emerging weeds; these weeds need to be controlled before they cause problems in the orchard or before they set seed. Early summer surveys help in planning for postemergent weed management. If herbicides have already been used, the survey helps in determining the success of the treatment and identifying resistant populations.
Record your weed survey results (summer weed survey form— ). Keep these records to track weed population information from year to year to better understand ongoing weed control problems.
How to survey your orchard
Information collected over a period of years tells you how weed populations may be changing and how effective your management operations have been.