At the 2025 Farm Progress Show, Syngenta Crop Protection Agronomist Matt Geiger shared information about Tendovo, the flagship pre-emergent soybean herbicide for that area.

“You need to start clean. You don’t want to have weeds at the time you plant or right after the beans come up. You want to stay clean early. Then you put that residual down to prevent new weed emergence,” said Geiger. “Herbicides in general are there so your weeds don’t compete with the crop. You don’t want competition at any point in the season.”

Geiger said weed prevention is key to maximizing yield. While post-emergence chemistries can be inconsistent, using a broad spectrum product like Tendovo that activates easily and lasts long enough that you can overlap your second residual before more weeds come up is a more reliable approach.

Geiger said complementary ingredients mean the product can activate with very little rainfall, but also with more rainfall. Varying solubilities provide consistency, while also ensuring an admirable crop safety profile.

Syngenta Crop Protection Agronomist Matt Geiger – Tendovo broad-spectrum residual soybean herbicide
FPS25 Interview with Matt Geiger, Syngenta Crop Protection (5:16)