Agricultural Uses
Ethoxysulfuron (HOE 095404) is a very flexible herbicide for the control of broadleaf and sedge weed species. Although rice is the main use crop, the compound can also be applied in cereals and sugarcane. Selectivity is achieved due to a differential metabolism in the target crops to that in the weeds. With an application rate of 15-60 g a.i. ha-1, a wide range of important annual and perennial rice weeds can be controlled, such as Cyperus spp., Aeschynomene spp., Eleocharis spp., Sagittaria spp., Scirpus spp., Amannia spp., Lindernia spp., Ludwigia spp., and Monochoria vaginalis. Ethoxysulfuron is fully selective in all types of seeded rice (dry drilled, pregerminated wet seeded, pregerminated water seeded) and all types of transplanted rice. The selectivity is not influenced by the rice GS at application time, nor by the water management or other environmental factors. Ethoxysulfuron was introduced in rice in 1996 (in Vietnam) and has been marketed by Bayer CropScience as a straight product under the trade name “Sunrice® WG” and as suspension concentrate (SC)-formulated products in combination with anilofos as “Riceguard®,” “Benefiter®,” “Sunrice Super,” and “Sunrice Plus”. In Australia ethoxysulfuron is used under the trade name “Hero®” for post-emergent control of Cyperus rotundus in sugarcane at a rate of 250 g a.i. ha−1.
