Jun. 24, 2019
By Leonardo Gottems, reporter for AgroPages
Corteva Agriscience confirmed to AgroPages that the company has received the approval of Anvisa (National Sanitary Surveillance Agency) to sell Rinskor (florpyrauxifen-benzyl) technical product in Brazil. This is a new active ingredient, with a different mode of action than the current ingredients available in the market.
According to Corteva, Rinskor will be an "important tool for controlling the main resistant weeds in rice and those that are difficult to control". The herbicide will have its recommendation for post-emergence applications, presenting a highly effective control over rice grass species, cyperaceae, aquatic plants and broad leaves, in general.
"This set of benefits is associated with a favorable toxicological profile regarding the impact on human health and the environment, being classified as a blue belt by the Brazilian regulatory agency. In addition, the product received international recognition, such as the Green Chemistry Challenge", noted Corteva.
The new product was presented to the rice planters associated with cooperative Coopersulca (state of Santa Catarina). According to Corteva technicians, the product is the result of extensive research conducted at the American Center for International Research on Herbicide Resistant Weeds. The herbicide, according to technicians, has a broad spectrum of control of grasses, broad leaves, cyperaceae and aquatic weeds in rice.
"We know that resistance from weeds is the biggest challenge for rice farmers. These challenges, associated with resistant weed control, have created a demand for innovative technology," said Luiz Fernando Bendo of Coopersulca's Marketing.
According to Bendo, resistance to ALS inhibitor herbicides is increasingly a major challenge for rice farmers. "The resistance of weeds and other grasses to ALS is becoming a real problem. The active ingredient Rinskor, controls ALS, glyphosate
, ACCase, PPO and triazine resistant biotypes, as well as other resistant weeds to Group 4 in rice. The active Rinskor is an alternative of Group 4 herbicides, which means that it is able to control any kind of pest, however sturdy it may be. "
He adds that ricegrass is one of the most problematic weeds in this crop. Recent research from the University of Arkansas Extension indicates that ricegrass infestation can result in a 30% reduction in rice crop yields.
Corteva points out that the formulated product still must go through the approval of regulatory agencies, and is in the final stage of registration on the Mapa (Ministry of Agriculture, Livestock and Supply) of Brazil. The new herbicide is expected to be available to producers in the coming years.