Removal of Roundup Ready Alfalfa: What can we learn from 2012
by Mark Renz, Extension Weed Scientist,
University of Wisconsin – Madison
Alfalfa stands are typically terminated by herbicides in Wisconsin. While many options are available, combinations of 2,4-D and glyphosate are most commonly used. With the availability of Roundup Ready alfalfa, concern about removal exists. While previous research has reported successful removal with combinations of 2,4-D and/or dicamba ( at least 1.0
Scouting for Leafhoppers
Weekly Scouting – 20 sweeps at 5 locations in each alfalfa field. Because leafhopper population densities vary from year to year and from field to field, the only way to accurately determine damage potential is by monitoring fields on a weekly schedule.
Start scouting 5-7 days after first cut.
Use a standard 15-inch diameter insect sweep net.
Walk a W-shaped pattern in the field and take twenty consecutive sweeps in each of five randomly selected areas.
Keep a
