WEED CONTROL

Herbicide Residue

Field Bioassay Instructions: Plant several strips of desired
crops across the field perpendicular to the direction the suspect
herbicide was applied. The strips should be placed to represent
different field conditions (texture, pH, and drainage). If the
crop does not show any visible signs of injury, stand reduction,
or yield reduction, then the field can be seeded with the crop
the next growing season after the bioassay. If any injury, stand
or yield reduction occurs, the crop must not be seeded and the
bioassay must be repeated the next growing season to determine
the safety of the crop to existing residues.