Pre-emergent herbicide Yamato SC (pyroxasulfone) launched in Brazil

Ihara announced in Brazil the launch of the pre-emergent herbicide Yamato SC (pyroxasulfone) to control ryegrass in wheat.

In an article written by specialists, Yamato is described as a “modern tool, with a differentiated mechanism of action, which has among its strengths: the excellent control of ryegrass, with great residual and selectivity for the wheat crop.”

“In this way, it is a tool that constitutes a fundamental option of chemical management, of pre-emergent action, to mitigate the damage caused by ryegrass, in the initial development of the culture, allowing to reach high productivity,” stated the signed article, by Professor Sylvio Henrique Bidel Dornelles, and researchers Danie Martini Sanchotene and Maicon Pivetta, from Biomonte.

According to Ihara, the herbicide Yamato was developed with an “exclusive technology that controls resistant weeds in the crop with high selectivity and long residual, without harming the crop and with longer-lasting protection.”

Yamato also has a record for potatoes, coffee, sugarcane, and corn, among other crops, fighting several species of weeds, including Brachiaria decumbens, Digitaria horizontalis, Digitaria insularis, and Panicum maximum, among others.

“The cultivation of winter cereals, mainly wheat, has been consolidating itself as fundamental for the food security of the Brazilian population. In addition, it is important for crop rotation/succession indispensable for weed control. Among those difficult to control, ryegrass (Lolium multiflorum) stands out. It is a grass that competes with wheat by causing allelopathic effects that interfere with its development, as well as by competing for nutrients such as nitrogen and phosphorus, which are fundamental for the tillering of the crop,” the experts said.

According to them, ryegrass has biotypes with cycles that vary from 130 to 210 days and present continuous germination flows over a long period, which makes it an “empowered” plant to compete, even with corn and soybeans in succession.

“Since there is a limited supply of post-emergent herbicides for use in wheat crops with efficiency in ryegrass control due to the increase in resistance to the most used herbicides, it is necessary to think of a control program that includes residual herbicides with mechanisms of action alternatives, the only way to contain ryegrass germination flows, so that we achieve the premise of 'starting clean to stay clean', providing flexibility for the efficient use of complementary post-emergent herbicides and reducing the number of sequential applications required,” they concluded in the article.

(Editing by Leonardo Gottems, reporter for AgroPages)