Include your thoughts on the symptomology and selectivity of each herbicide, the timing of application, other effects on the herbicide efficacy, and make conclusions on herbicide use in hypothetical cropping situations. All herbicides should be evaluated during the rating times. On February 8th the formal lab will be held. The door to the greenhouse is normally open. Southern Weed Science Society.
Weeds light green in color.
Crop may have slight discoloration. 20 No weed control. May have slight foliar symptoms. Some crop discoloration, little foliar burn. 30 Poor weed control, definite symptoms of herbicide injury.