Brian and Darren Share some Tips on Soybean Weed Control.
Why It Matters
Effective pre‑emerge weed control lowers production costs and protects yield potential, crucial for soybean profitability in competitive markets.
Key Takeaways
- •Pre‑emerge herbicide program works for all soybean traits
- •Controlling weeds at germination is easier than mature roots
- •Use three effective pre‑emerge modes of action for best control
- •Valor or Authority plus Metribuzin are recommended combos, adjust for soil
- •Yellow herbicide pre‑emerge (trifluralin or prodiamine) offers strong control, rarely used
Summary
The video focuses on practical soybean weed‑control strategies, emphasizing a pre‑emerge herbicide program that applies across conventional, Enlist, Extend Flex, and future traits. Brian and Darren stress that early‑season applications are the most efficient way to suppress weeds before they develop extensive root systems.
Key insights include the need for three effective pre‑emerge modes of action. The hosts recommend either Valor or Authority paired with Metribuzin—adjusting rates for sandy soils or high‑pH conditions—and suggest a “yellow” herbicide (trifluralin or prodiamine) as the third, often under‑utilized option. Soil texture and pH dictate dosage, with high‑pH fields using only a sixth to an eighth of a pound of Metribuzin.
Notable remarks highlight practical nuances: “If you have very sandy soil, you can’t use Metribuzin,” and “In high‑pH soils, cut the rate back.” They also point out that yellow pre‑emerge herbicides are rarely used in corn or wheat, making them a unique tool for soybeans.
The guidance aims to improve weed‑management efficacy, reduce reliance on post‑emergent sprays, and mitigate resistance risk, ultimately supporting higher yields and lower input costs for soybean producers.
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