Jason Deveau
@Spray_Guy
I research & teach efficient, effective and safe agricultural spraying. This account is monitored intermittently.
This account is monitored only rarely. For more information about spraying in agriculture, or to reach me, check out sprayers101.com (-Turbulent Eddy and Laminar Flo)

TODAY IS THE LAST DAY!!! Registration closes tonight at midnight ET. Get registered or get FOMO! @VBFarms @islandviewag @EastCropper @GillesQuesnel
THIS IS IT! The 11th hour! Last chance to register for a one-of-a-kind field day filled with spraying know-how. -Drones -Tender / Filling -Drift mitigation -Sprayer optics -Four amazing machines running an obstacle course Register here: eocac.ca
Excited to share our latest work: “Stakeholder assessment of weed management practices and perceptions of targeted spraying technologies in corn-soybean systems” by @ZaimUgljic et al. (2025) This survey-based study provides timely insight into how growers, crop consultants, and…
THIS IS IT! The 11th hour! Last chance to register for a one-of-a-kind field day filled with spraying know-how. -Drones -Tender / Filling -Drift mitigation -Sprayer optics -Four amazing machines running an obstacle course Register here: eocac.ca

Time is running out and space is limited. If you'd like to join spray experts from all over North America and see four high tech sprayer demos, then now's your chance! Not likely to happen again for a loooong time :)
Registration is now open for AgSpray Expo happening this July! Don’t delay, only 160 spot available! Register here: eventbrite.ca/e/agspray-expo…
Here is a visual for why it’s CRUCIAL to follow proper mixing procedures when using Enlist 1 chemistry on your Enlist traited soybeans and corn #spraysafe @PioneerSeedsCA
As post emergent soybean spraying ramps up remember to follow proper mixing order with Enlist 1 herbicide. It is CRUCIAL to follow proper mixing order to avoid chemicals salting out in the tank. Never mix Enlist 1 and Glyphosate concentrates together!
Got a sos call from custom operator who wondered into a honey hole yesterday. After no success on their own they called us for help. This is the 3rd recovery we have done over the last 2 years When you have the right equipment big jobs go easy. 3 hrs of set up one pull and…
This is an excellent discussion about how we might start adopting green-on-brown technology. Todd and I will be talking about this at the Elora Weeds Tour on July 16.
Got our first look at in-crop See and Spray tonight. Up first, a non-gmo corn field with a sow thistle issue. Had Corvus + Aatrex pre. Grower has been fighting this issue for a few years. Excited to see how this turns out. Covered 85.6 ac Sprayed 60.9
For those with Hardi sprayer experience, my inductor backfilled tonight for some reason spilling juice out of the top. Anyone out there have this happen to them? #agtwitter
I found tar spot in our research plots yesterday and have turned on the map for 2025 season. See link on what that means for corn and making an informed fungicide decision on your farm indianafieldcroppathology.com/tar-spot-what-… @PurdueCorn @PurdueBPP @PurdueExtension @badgercropdoc…
Corrected an error in the RPAS wheat report. New version has been posted. If you caught it, then you know ;) sprayers101.com/rpas_cardinal_…

How do RPAS droplets move in the swath? What are reasonable operational settings when spraying wheat? How does drone coverage stack up against conventional methods? Have a look: sprayers101.com/rpas_cardinal_… #RPAS #Drones


Wondering what’s joining us for AgSpray Expo this summer? Wonder no more - check out what sprayers will be on site for demo and testing! Register today! at EOCAC.ca
John Deere Exact Emerge planter owners….. What’s going on with my clutches?? On-Off Randomly 🤷🏽. Any ideas out there??
Spraying? Be SIZE aware! Bigger droplets are heavier & more likely to land where you want them. Use the largest droplet size you can, without compromising coverage💧 Find more spray tips this season at buff.ly/tMtPv9c #OntAg #BeDriftAware @spray_guy
Got your drift paper handy?? Join us July 23 for a wind-swept, on-target day of sprayer demos, education sessions & a chance to test-drive sprayers in the field! Full info & registration found here: eocac.ca/agspray2025.php Registration is limited, so don't delay!
Looking to manage your crop from the sky? Join us July 23 for a high-flying day of demos, education & sprayer test-drives! Don't get left on the ground - register today! Full info & registration found here: eocac.ca/agspray2025.php Registration is limited, so don't delay!
Today, sprayers101.com is celebrating 10 years. Thanks to our readers, our sponsors, and our contributing authors. sprayers101.com/history/ @nozzle_guy

Small droplets + wind= drift Learn more about how to minimize drift from Jason Deveau (@spray_guy) in the @GrainFarmers GrainTalk Webinar below 👇 #ontag #spray25 #BeDriftAware buff.ly/cDa9hM3