Nicosulfuron
Common name: nicosulfuron
Cas no. 111991-09-4
Molecular formula: c15h18n6o6s
Activity: herbicide
Ingredient: 95% tc
Formulation: 4% sc, 75% wdg

Application:
Nicosulfuron
Selective post-emergence control in maize of annual grass weeds, broad-leaved weeds and perennials grass weeds.

Nicosulfuron is absorbed by the leaves of treated plants and translocated to the meristematic tissue causing growth inhibition, discoloration, necrosis and, eventually, plant death. The product is most effective against grasses when applied between emergence and tillering.
Broadleaf weeds are most effectively controlled when treated at the 2-3-leaf stage. Split applications can improve the efficacy of the product. Nicosulfuron is rainfast within six hours. Dupont recommends the use of adjuvants such as non-ionic surfactants or crop oil concentrates to enhance the activity of its granular product. Nicosulfuron has no residual activity, being quickly metabolised by plants.

Nicosulfuron shows high selectivity to maize, but treatment of maize crops with some soil insecticides sensitises the crop to nicosulfuron, resulting in crop damage. Dupont and isk report that nicosulfuron is safe to soybeans planted in rotation with maize.