Ailar

Ailar is a systemic pre-emergence herbicide from DEFENDA, formulated as a suspension concentrate with 600 g/L of the diphenyl-ether active ingredient aclonifen. It controls annual dicotyledonous (broadleaf) weeds by inhibiting pigment biosynthesis: the active is taken up through the shoots of germinating weeds, not the roots, bleaching young seedlings so growth stops and they die within two to three weeks. Spray onto fine, moist, well-prepared soil at 15-25 °C and wind below 5 m/s; no incorporation is required.