OK State Weed Science

09/07/2026

Happy Labor Day from our crew to yours!

09/03/2026

We get a lot of questions about sericea lespedeza control in pastures. What some folks don't realize is we have native and invasive lespedeza species in Oklahoma.
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Dr. Goodman has a great YouTube video on how to tell the difference. Check it out!!
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Sericea lespedeza is an invasive legume that is found across the Un...

09/01/2026

OSU NPK is doing an outstanding job at keeping up with fertilizer prices as we head into wheat season here in OK.
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Follow him to stay updated!!

Still working on the network of fertilizer dealers to call upon for local price checks. So this week the price will be from the Two Rivers web. But the plan is to have a much improved local report by Sept 14th.

08/31/2026

It's time for the reveal! Our secret
seed from Friday is... ITALIAN RYEGRASS! Here are a few fun facts about Italian ryegrass to get your week started right!
🌱 Seedbank longevity is 2-3 years!
🌱 A single plant can produce anywhere from 1,000-5,000 seeds per growing season!
🌱W**d scientists have found populations resistant to up to six different herbicide modes of action because the plant cross-pollinates easily and adapts fast!
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**dScience

08/28/2026

Can you guess the name of this w**d seed? Here are some hints to help you out! Comment below if you think you know the answer, and come back on Monday to see if you're right... we're ROOTING for you!
🌱 This seed has has a straw-colored brown coat that is smooth and glossy with longitudinal veins!
🌱 Average weight is between 1.3-2.6 mg!
🌱 The seed chaff has tiny bristles that help the seeds catch on animal fur to travel to new spots!

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08/25/2026

**dScience Extension has now published the 2025-2026 newsletter. Scan the QR code or click the link below to read it!
https://tinyurl.com/5bspnz6e
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Note: Anything in orange that is underlined is a hyperlink to an external reference. If you want additional information, reach out to Dr. Galvin!

08/24/2026

It's time for the reveal! Our secret seed from Friday is... H**P SESBANIA! Here are a few fun facts about h**p sesbania to get your week started right!
🌱 Seedbank longevity is 2-5 years!
🌱 A single plant can produce up to 21,000 glossy, oblong seeds packed inside long, curved pods!
🌱Because the seeds tolerate flooding well, they easily float and spread via moving water or contaminated crop seed!
**dscience **dScience

08/21/2026

Can you guess the name of this w**d seed? Here are some hints to help you out! Comment below if you think you know the answer, and come back on Monday to see if you're right... we're ROOTING for you!
🌱 This seed has a as a glossy, hairless coat that can range from light brown-dark brown!
🌱 Average weight is between 6-15 mg!
🌱 These seeds are held in pods on the plant that contain 30-40 seeds each and are around 6-8" long!

**dscience

08/20/2026

Friendly reminder about who is behind this account!
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My name is Dr. Liberty Galvin, born and raised in Oklahoma and a third generation Oklahoma State University graduate. 🤠
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Assistant Professor of Extension W**d Science and Precision W**d management with an 85% extension and 15% research appointment.
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Current work includes:
assessing alternative w**d control strategies to manage herbicide resistance in wheat 🌾
crop-w**d competition studies,
herbicide efficacy field trials,
UAV applications in agriculture.
**dScience
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I am a member of the Wheat Improvement Team at OSU and teaches CEUs to pesticide applicator license holders across Oklahoma. 🌾🌾