Syngenta’s New Corn Herbicide Storen Gets EPA Registration

Syngenta announced today that its residual corn herbicide Storen has been registered by the U.S. Environmental Protection Agency and will be available for use in 2024, subject to state approvals. Storen combines four residual active ingredients — bicyclopyrone, mesotrione, S-metolachlor and pyroxasulfone — for consistently clean rows.

Syngenta says that its research shows that the rows using Storen stay clean up to three weeks longer than rows using top competitor herbicides.

“Weeds continue to evolve and are outsmarting the most effective herbicide programs used today,” said Shawn Hock, corn herbicide product lead for North Carolina-based Syngenta Crop Protection. “In fact, we surveyed preemergence corn herbicide users and 40 percent of those surveyed said Palmer amaranth and waterhemp were difficult to control with their program. That is why we invest in new innovations to help growers meet emerging weed challenges, and we are excited to announce Storen corn herbicide to help restore confidence in their weed control.”

Matt Moreland, a grower from Medford, Oklahoma, explained why he sees so much value in Storen.

“We farm along the Kansas-Oklahoma border and deal with weeds like Palmer amaranth and grasses, which contact herbicides used to control before weeds became resistant,” Moreland said. “We’ve adapted our approach to rely on strong residual herbicides that prevent weeds from emerging and taking over our fields, and that’s why we’re looking for a longer-lasting herbicide that’s going to get me through canopy.”

Storen is labeled for preemergence and post-emergence in field corn and seed corn and has partial control, or control, of more than 74 weed species, including control of Palmer amaranth, waterhemp, kochia, common lambsquarters, morningglory, Giant ragweed, common ragweed, and annual grasses.

“When you put a full rate of the four most effective residual active ingredients together that control resistant weeds, it’s no wonder we’re seeing a higher level of control from Storen than any other product,” said Brett Miller, regional head of field development for Syngenta Crop Protection.