Mike Cowbrough

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

@JoannaMWallace @dalemountjoy @cowbrough That’s what I was thinking. Is Angelica as “invasive” as hogweed?

@cowbrough are we looking at Giant Hogweed here?

@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.

@WheatPete @cowbrough what do I mix up to kill this shit! Dogstrangle vine is out of control

@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.

@WheatPete @cowbrough @psikkema1 @FtardifUofG 👍

Awesome early planted wheat on sandy soil. Tillering. But chickweed starting, and already manganese deficiency showing. First spray this fall!

NEW! An updated version of @OMAFRA's Publication 30: Guide to Forage Production is now available. Free PDF download: ontario.ca/page/guide-for… #ontag

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?

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! bit.ly/3QKJhzr #OCDD22

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

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

@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.

@cowbrough How much yield loss does horsetail cause? With that much pressure

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.

@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…

@islandviewag @cowbrough @MdMcLean1 @cheekyfarmgirl Thanks Harry

@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.

@cowbrough What about r-up alone? Did even turn it yellow in sugarbeets this year

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

@cowbrough How much oil and AMS?

@DanielKrijger Just top growth control unfortunately.

@cowbrough Does it actually kill them or just burn them off?

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

@cowbrough Keep us posted! That looks good! I fight horse tail on a few acres and my current program is hard on beans ..

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

I didn't have cash so I made my summer student buy them 😝 SO GOOD.

@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.

@swagronomy Trying to ID that very same grass today in a field of winter wheat. Dark nodes and somewhat zig-zag stem. Not downy brome as far as I can tell. I’m stumped @Adam4Bent

Need a little help here. Growing in clumps in a soybean field. 0.8lt of glyphosate didn’t seem to touch it. Any ideas anyone?

@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

@FarmKid92 @FieldwalkerAg @ljmfarms Brendan is correct.

@FieldwalkerAg @ljmfarms Don't think so. I'm 95% sure on it being Nipplewort. cc: @cowbrough

Weed id question. Anyone know what this is?