🌽🐂🐓🌾☘️🐝 @MudCreekFarmIA 👩🏽🔬👩🏫👩💻👩🌾 💙 Weeds ❣️🇺🇸 ❤ISU🌪💛🤍KSU🐯💜
Iowa, USA
Joined August 2017
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Dawn Refsell retweeted
Farmers, landowners and conservation-minded neighbors: tour four edge-of-field conservation practices and see cover crops Nov. 5 @ISUNorthernRF.
The event is free and includes lunch and CCA credits. Register by Oct. 30: extension.iastate.edu/news/c…
@ISUCropNews
ALT Group of people gathered near a freshly dug trench beside a pond on a sunny day with scattered clouds.
Dawn Refsell retweeted
📣 Good news!! The #WSSA2027 Annual Meeting Page is OPEN!!!
⛰️Join us in Denver February 8-11, 2027, for an excellent conference in the Mile High City!
Important dates & deadlines here!
In the meantime, please visit event.fourwaves.com/wssa2027
#WSSA #weedscience #invasiveplants
Dawn Refsell retweeted
🌱🤖 Digital tools are changing weed management.
Join the upcoming UNU-INWEH Science Talk exploring how #AI, computer vision, sensing, modeling, and other digital tools are being used in #weedscience.
📅 Sept. 9, 2026
💻 Free & open to public
unu.edu/inweh/event/science-…
#WSSA
Dawn Refsell retweeted
We’re inside the agriculture building for the @IowaStateFair Weed Identification Contest due to rain! Keeping our papers dry this morning. Come see us! #ISUCrops
ALT Potted plants lined up on tables with red tablecloths with an Iowa State University Extension and Outreach banner to the side.
Dawn Refsell retweeted
Even if it rains, we’ll be there and we hope you will too! We’ll be inside the ag building if it’s raining during the contest!
📍See you Friday at the @IowaStateFair
📢Tis the season to practice identifying weeds! Join us at the @IowaStateFair for the Weed ID Contest on Aug. 14, from 9-11:30am in front of the Ag Building.
Ribbons, money, and bragging rights to the top 5 competitors in each category (Professional, general, youth)!
ALT Iowa State Fair Weed ID Contest on August 14 from 9-11:30 a.m. in front of the agriculture building. Three images of weeds.
Dawn Refsell retweeted
Today is #InternationalCatDay, and you might be surprised to know that #cats and #weeds have a few things in common.
Cats and weeds are both highly adaptable, persistent, opportunistic, and very good at ending up where you didn't intend them to be. 🤓
#WSSA #weedscience
Dawn Refsell retweeted
📣 New U.S. EPA herbicide registration proposals promise to help farmers in their efforts to control increasingly difficul #weeds such as this #Palmeramaranth seedling.
wssa.net/2026/07/wssa-applau…
📸 Claudio Rubione, GROW (Getting Rid of Weeds).
#WSSA #weedscience #agriculture
Dawn Refsell retweeted
From coast-to-coast, weed scientists are reporting that Palmer amaranth continues developing herbicide resistance. Now glyphosate-resistant Palmer has reached the PNW while the Northeast is grappling with non-target-site atrazine resistance, aka the dreaded “metabolic resistance.”
Read more about the newfound resistances here: growiwm.org/palmer-amaranth-…
#growiwm #integratedweedmanagement #weedcontrol #farming #agriculture #rowcrops #Palmeramaranth
Dawn Refsell retweeted
📢Tis the season to practice identifying weeds! Join us at the @IowaStateFair for the Weed ID Contest on Aug. 14, from 9-11:30am in front of the Ag Building.
Ribbons, money, and bragging rights to the top 5 competitors in each category (Professional, general, youth)!
ALT Iowa State Fair Weed ID Contest on August 14 from 9-11:30 a.m. in front of the agriculture building. Three images of weeds.
Dawn Refsell retweeted
Only a few herbicides are formulated with an adjuvant package that can optimize application in every scenario. Applicators often need additional adjuvants to optimize herbicide applications for the specific conditions.
Check out Adjuvants with Herbicides. When and Why They Are Needed at cropprotectionnetwork.org/pu…
From @TravisLegleiter @PUweeds @NDSUWeeds @lancasarah @WiscWeeds @mjanders1 @oSu_WeedScience @VTAgWeeds @JasonABond @UMNweeds @Connorwebster_ +others.
@WarAgainstWeeds @NCWeedScience @IAStateWeedSci
ALT Table 1 from the publication showing adjuvant rate unit conversions.
ALT Four plastic bottles filled with chemicals. These are results of adding a boron-containing adjuvant in two separate herbicides. Image courtesy Tommy Butts.
Dawn Refsell retweeted
📣📣LAST CALL for 2027 Symposia Proposals!!! Today is the deadline! Symposium proposals should be emailed directly to WSSA President & copied to WSSA VP.
#WSSA2027 #WSSA #weedscience
Dawn Refsell retweeted
This small corn plant is already at V5. It is less than 16 inches tall. I am concerned that a lot of people could end up spraying herbicides at the wrong stages this year. Double check leaves and collars. Don’t just use height.
Dawn Refsell retweeted
Sensitivity to stress changes throughout soybean growth, bringing different risks at each stage. Many can be reduced with good management practices. Get the facts on key risks, best practices, and common misconceptions about the soybean growth cycle: ow.ly/CKIQ50Z4K3C #SoyCheckoff
ALT Simple graphic showing the soybean growth cycle. The cycle starts on the left with germination, progressing through vegetative and flowering stages with green leaves, and ending on the right side at full maturity with dry leaves.
Dawn Refsell retweeted
Just the Facts Jack: Soybean Planting Date, Seeding Rate, Pre-Herbicide Timing, and Seed Treatment Recommendations: @WiscWeeds badgercropnetwork.com/just-f…
Dawn Refsell retweeted
Imbibitional Chilling in Soybean and Corn: @WiscBadger_corn @hebeltaina @ColetFabiano badgercropnetwork.com/imbibi…
Dawn Refsell retweeted
Corn yield gains in the U.S. are no longer tied to higher plant densities. 🌽
Recent genetic progress is driven by increased yield per plant—not improved crowding tolerance—highlighting a clear decoupling between yield and plant density.
Full article: doi.org/10.1016/j.fcr.2026.1…
