glyphosate (several trade names)
Rate 0.75 to 3.75 lb ae/a
Time Apply to actively growing weeds before silking of corn.
Remarks Rates depend on weed species and growth stage as specified on label.
Caution Do not treat more than 10% of the area to be harvested. Sprayed crop will be killed. Avoid drift or spray outside target area for the same reason. Do not apply if weeds are stressed from drought, disease, or insect damage; weed control may be reduced. Rain within 8 hr after application may reduce effectiveness.
Site of action Group 9: inhibits EPSP synthase
Chemical family None generally accepted