GREENSBORO, N.C., July 10, 2023 ― Syngenta's latest 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 ― to deliver clean rows up to 3 weeks longer than other leading corn herbicides. This length-of-control advantage is based on 2022 Syngenta and university replicated trials comparing Storen to Resicore and TriVolt.

“Weeds continue to evolve and are outsmarting the most effective herbicide programs used today,” said Shawn Hock, corn herbicide product lead for Syngenta Crop Protection. “In fact, we surveyed preemergence corn herbicide users and 40% 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."

One such grower, Matt Moreland from Medford, Okla., explained why growers like him need 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,” said Moreland. “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.

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