New herbicide label for Stinger
Stinger labeled for Swiss chard.
The Michigan Department of Agriculture and Rural Development and the U.S. EPA have approved an SLN label for postemergence broadleaf weed control in Swiss chard with Stinger (clopyralid).
Stinger is effective against most composites (Asteraceae), legumes (Fabaceae), nightshades (Solanaceae) and smartweeds (Polygonaceae). It has some activity against wild carrot. Most other plants are not affected by Stinger.
For control of susceptible annual weeds, apply .25 to .5 pint of Stinger 3L (0.094-0.187 lb ai/acre). There is a 30-day pre-harvest interval. Small weeds will be controlled more easily than mature weeds. Do not add an adjuvant to the spray mix.
Stinger may be applied in a tank mix with Poast or Select Max for grass control.