John Pocock

U.S. livestock and crop-production news. Opinions are my own.

[Rodrigo Werle @WiscWeeds]

🚨 New research from the #WiscWeeds lab!

We confirmed the first Wisconsin case of #waterhemp resistance to PPO-inhibiting herbicides (Group 14) applied preemergence.

👉 Waterhemp accession A92 from Dodge County, WI showed reduced sensitivity to sulfentrazone and fomesafen applied preemergence and to fomesafen and lactofen applied postemergence.

👉 Resistance was not linked to any known target-site PPX1 or PPX2 mutations, pointing to likely non-target site mechanisms (e.g., cytochrome P450s or GSTs).

Important @WISoyCheckoff funded work led by Dr. Felipe Faleco (@FFaleco, former #WiscWeeds PhD student), in partnership with Dr. Pat Tranel’s Molecular Weed Science lab at the University of Illinois Urbana-Champaign @IllinoisCropSci.

📄 @FFaleco et al. 2025. Resistance to protoporphyrinogen oxidase inhibitors applied preemergence or postemergence to waterhemp (Amaranthus tuberculatus). Weed Science. 73(1):e73. @WorldofWeeds

🔗 Read here (#OpenAccess) → https://t.co/tTMExasFNr

[WSSA @WorldofWeeds]

⚡️ New research from #WSSA reveals that weed-zapping tech can be just as effective as herbicides or mechanical methods!

🔥 Electric control shows promise...but comes with a fire risk in dry conditions.

📄 https://t.co/FTU6NUQ71a

#invasiveplants #weedscience #weedmanagement

[WSWS @WSWeedSci]

📣Abstract submissions for #WSWS2025 are due one month from today - February 15!

https://t.co/3i2VvHkNnd

#WSWS #invasiveplants #weedscience

[Rodrigo Werle @WiscWeeds]

Planting #soybean green proves effective for #waterhemp and Palmer amaranth suppression

"Newly published research shows promise for integrated approaches to troublesome Amaranthus weed species management using #covercrops in soybean cropping systems" @WorldofWeeds

For complete information: https://t.co/v3mAGtRLZB

CC: @JoseJr_Nunes @PSUCropWeeds @NDSUWeeds @ShowMeWeeds @KStateWeedSci @lancasarah @TravisLegleiter @UnitedSoy @CropNetwork @GetRidOfWeeds @SoybeanScience1

[WSSA @WorldofWeeds]

Reminder – #EPA webinars on Integrated Pest Management continue into 2025! And pssst...there's one tomorrow, too!

https://t.co/y1PvfFho8Q

#WSSA #weedscience #invasiveplants #pestmanagement #IPM #integratedpestmanagement

[WSSA @WorldofWeeds]

Hydrilla has been detected in second waterway in #Illinois and has resource managers on edge.

https://t.co/9YDD0iMHBq

#WSSA #weedscience #invasiveplants #Hydrilla #aquaticweeds

[WSSA @WorldofWeeds]

Survival in #weeds that used to be controlled by #herbicides? #Herbicideresistance could be an issue. MSU Plant & Pest Diagnostics offers bioassay screening of weeds for resistance starting in the fall & winter.

https://t.co/qo1hIGjnUD

#WSSA #herbicides #weedscience

[North Central IPM Center @ncipmc]

What do the changes related to pesticide applications mean for landowners and pesticide applicators in the Midwest?

Find out from Dr. Gretchen Paluch during the November webinar called, "New Pesticide Mitigations, Labels, and Bulletins (Oh My!)"

Register: https://t.co/24xWFnT2nr

@NPICatOSU @IPMInstitute @plantdisease @OSU_PSEP @UNL_PSEP @ISU_PSEP @EPAregion7 @EPARegion8 @CropNetwork @EntsocAmerica
@USDA_NIFA @southernipm @NCRegionalAssoc @NCWeedScience @ncrsare

[WKREC @KStateWKREC]

🪴 Shattercane may look like sorghum, but it can wreak havoc on your fields. From soybeans to corn, control strategies differ. Check out @KStateAgron's eUpdate for tips for managing this persistent weed. https://t.co/3UhNOKnfnG
#WorldOfWeeds #AgTips

[Meaghan Anderson @mjanders1]

Widespread frost expected in Iowa Monday night (Oct. 14). 🥶I'm not ready, BUT it will help prepare winter annual, biennial, and perennial weeds for winter.

The next warm up after the frost will be a great time to spray these weeds as long as their foliage is in good condition!

[WSSA @WorldofWeeds]

#WSSA is accepting proposals from members for seed money to explore innovative ideas in #weedscience. Proposals should cover something WSSA does not currently fund.

Application details are in your email.

#funding #grants #innovation #technology #invasiveplants #weedmanagement

[WSSA @WorldofWeeds]

Reminder – WSSA Innovative Grants Program Proposals for 2024 are due on October 1! Seed money will be awarded to explore innovative ideas in #weedscience.

Please see email for submission instructions.

#weeds #invasiveplants #weedmanagement #WSSA #research #funding

[WSSA @WorldofWeeds]

#WSSA is accepting proposals from members for seed money to explore innovative ideas in #weedscience. Proposals should cover something WSSA does not currently fund.

Application details are in your email.

#funding #grants #innovation #technology #invasiveplants #weedmanagement

[WSSA @WorldofWeeds]

How does phenotypic variation in #Japaneseknotweed influence invasion in novel habitats? 🤔

https://t.co/JnqLZ7KoTE

#WSSA #weedscience #invasiveplants #weedmanagement #invasionecology

[WSSA @WorldofWeeds]

Catch #weedscientist Mirella Ortiz featured here explaining the concerns about invasive #aquaticweeds in #BearLake, #Utah.

https://t.co/jD5axhWWD6

#WSSA #weedscience #invasiveplants #aquaticplants #lakesappreciationmonth

[UMN Nutrient Management @UMNNutrientMgmt]

Considering applying supplemental N as a rescue treatment? Here are a few things to consider. @UMNExt @UMNswac #MNag

https://t.co/7PQDcK3AmR

[WSSA @WorldofWeeds]

#Weeds and #invasiveplants can also harbor invasive animals. This relationship between the #spottedlanternfly & #treeofheaven makes it so important to manage weed species.

https://t.co/FnpFJdXR8P

#WSSA #weedscience #entomology #forestry #badromance #invasivespecies

[UMN Nutrient Management @UMNNutrientMgmt]

U of M Extension educator Brad Carlson talks about sidedressing N in wet years. @UMNExt @UMNswac #MNag

https://t.co/7PQDcK32xj

[John Pocock @PocockJohn]

A newly published @WorldofWeeds
research article identifies a single major gene controlling S-metolachlor resistance in a central Illinois waterhemp population. Learn more: https://t.co/64oQDVwE5G. @UofIllinois

[Clint Fischer @clintwfischer]

In 1981, my dad had a death threat from a customer.

Both my dad and FIL were Ag Bankers during the farm collapse of the 1970s & 1980s.

I asked their take on what went wrong back then, in hopes of learning.

They agreed on these 5 major factors-->

1/