Mike Cowbrough

Weed Management Extension, Adjunct Faculty: Department of Plant Ag, hobby farmer, dad.

[Mike Cowbrough @cowbrough]

@Trevordovsky @JoannaMWallace @dalemountjoy It’s Angelica as Joanna has already confirmed. Fairly harmless.

[Mike Cowbrough @cowbrough]

@dejongcropcare @WheatPete Others have made good suggestions here. @FJTardif has done multi-year study’s but in non crop areas. The group 4 herbicides (dicamba) stunt growth and prevent flowering. Glyphosate is effective at high rates and multiple applications. It’s a tough one for sure.

[Mike Cowbrough @cowbrough]

@SflJim @WheatPete @psikkema1 @FtardifUofG You won’t get any meaningful residual control to deal with weeds that germinate and emerge in the spring…ragweed being the most significant.

[Christine O'Reilly @haysngraze]

NEW! An updated version of @OMAFRA's Publication 30: Guide to Forage Production is now available. Free PDF download: https://t.co/cdlYjwElPg #ontag

[Christoph Wand @CtophWand]

Anybody growing cereal silage, or has some in the silo already? If you are willing to work with @RuminantFID, your feed advisor & the lab normally used, we'd like to have a physical sample of your feed + analysis for Nov 2 event @BeefGuelph @DairyFacility DM me, pls?

[SWCropDiagDays @SWCropDiagDays]

We are back in person July 20th & 21st in Ridgetown! We have combined Southwest, Elora & Eastern Ontario into one provincial event (Ontario Crop Diagnostic Days)! You will not want to miss this! Register soon, as space is limited to 200/day! https://t.co/BDkjz3nNBb #OCDD22

[Michelle Durnin @michelle_durnin]

Finishing up IP resprays on the holiday weekend 👇#IYKYK Contact @livnoorenberghe to get yourself one of these great tees in support of the OAC Weeds Team! #mykindahumour

[Mike Cowbrough @cowbrough]

@farmfreshkaren Wait…what now?! Does this magical unicorn travel south of CR 30?

[Mike Cowbrough @cowbrough]

@TwitDeWitt Good question. These will go to yield and we have horsetail free plots to compare it to. Gut feel says not as much as you’d think.

[Mike Cowbrough @cowbrough]

Horsetail control trial in E3 soybeans…interesting differences so far in the top growth control with 2,4-D choline on its own (1st pic) compared to the combo of glyphosate + 2,4-D choline. This is 4 days after application.

[Mike Cowbrough @cowbrough]

@gblairfarms @islandviewag @MdMcLean1 @cheekyfarmgirl There are a bunch of theories, but the plant is so adaptive that you can usually find a population that thrives in soil conditions that are supposed to be inhospitable…

[Mike Cowbrough @cowbrough]

@woody_VA It’s generally very tolerant to glyphosate. I’ve had some success with very high rates but it has not been consistent at all.

[Mike Cowbrough @cowbrough]

@buttkeagronomy No oil, around 1 pint per acre of AMS

[Mike Cowbrough @cowbrough]

@DanielKrijger Just top growth control unfortunately.

[Mike Cowbrough @cowbrough]

@MdMcLean1 Will do. I fear this is all eye candy but time will tell.

[Mike Cowbrough @cowbrough]

@megnmoran So when are you dropping off the remaining 7? Or is this a historical photo?

[Mike Cowbrough @cowbrough]

@farmertorrey @swagronomy @Adam4Bent You’re welcome to send me a sample and I’ll take it to herbarium to ID…these are not easy grasses to ID without a key and microscope.

[Mike Cowbrough @cowbrough]

@Dan_Foster_ My guess is a Festuca species. I sent two to the OAC herbarium this week that were Tall Fescue…that genus appears to have some decent natural tolerance to glyphosate

[Mike Cowbrough @cowbrough]

@FarmKid92 @FieldwalkerAg @ljmfarms Brendan is correct.