Best motorized backpack sprayer?

DonnyCoffey

Active Member
I’m looking for a quality backpack sprayer for target applications. Soil injections and smaller ornamentals. Nothing huge. I have a JD-9 and soil probe. SOLO?
 

ATH

Well-Known Member
Best? Birchmeier.

I personally like Field King (Smith) better than Solo - but I've only used a couple of each.

What kind of PSI do you need?

What products (and volumes) are you soil injecting?
 

DonnyCoffey

Active Member
Most of my injections are going to be liquid fertilizer/nutrients, insecticides/fungicides for shrubs and small ornamental’s. I don’t plan on using any powders or granular. I don’t think I really need a high psi, only to reach the height that I need. I can calibrate whatever I need based on my psi for rates.
 

DonnyCoffey

Active Member
The volume of my injections are going to be pretty low. We are talking injections for boxwoods, arborvitae, the smaller diameter hemlocks
 

ATH

Well-Known Member
Why do you need motorized? For a few small doses here and there a hand pump sprayer should do just fine.

Birchmeier does make a battery one. Never used it.

I also have a Field King battery sprayer. Verdict is still out on that... it did not do well with Garlon 4 mixed in a basal oil carrier (low teen temps...got a little slushy after a while). To be fair, it does say not to use with petroleum products so I'm still hipeful. When I clean it out and run water through it, it seems to do very well. Hoping it will do a better job with RoundUp once things start to grow. But it doesn't have enough PSI to get things into the ground with injections.
 

DonnyCoffey

Active Member
The reason I want to be a motorized is for those tall ornamentals or the Bradford pears, Plant material that is 30 feet and below.
 

ATH

Well-Known Member
20-30' is a bit much for a backpack sprayer. Besides PSI which you can get enough out of the engine-driven backpack sprayers (doesn't look like you can from the battery-powered sprayers though), you still need GPM to build a column of liquid to reach some height. Also a tree that tall usually has some spread to go with it so you need several gallons to get good coverage. While 4 gallons will cover a lot of those small trees/big shrubs, it takes a while to get 4 gallons out of a backpack. Then you'll need to refill after every tree.

It can work, but honestly not the best tool for that job. But if it fits what you are trying to do, then I think Solo is the best option I have seen...but I haven't used it so no first-hand experience. A hand pump sprayer can easily get 15-20' on a calm day - again, you are going to struggle to get enough volume.
 

colb

Well-Known Member
I bought fastpacs when they first came out. They were great. My next ones will be milwaukee brand because I have the batteries already from my milwaukee m18 fuel purchases. They have containers that can be switched out, so you can have 10 4 gallon containers loaded, one base with the pump motor in it, and however many batteries. Maybe check and see if your battery tool line has something similar?
 
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colb

Well-Known Member
20-30' is a bit much for a backpack sprayer. Besides PSI which you can get enough out of the engine-driven backpack sprayers (doesn't look like you can from the battery-powered sprayers though), you still need GPM to build a column of liquid to reach some height. Also a tree that tall usually has some spread to go with it so you need several gallons to get good coverage. While 4 gallons will cover a lot of those small trees/big shrubs, it takes a while to get 4 gallons out of a backpack. Then you'll need to refill after every tree.

It can work, but honestly not the best tool for that job. But if it fits what you are trying to do, then I think Solo is the best option I have seen...but I haven't used it so no first-hand experience. A hand pump sprayer can easily get 15-20' on a calm day - again, you are going to struggle to get enough volume.
I agree with @ATH - 20-30 feet is ambitious for my backpack sprayers. You'd have to position right underneath it and lob it onto the top, while avoiding the falling spray. Not my idea of a good time. Stilts will get you 3 more feet, which is not enough, plus you'll be wearing a backpack while on stilts...

Usually, Bradford pears are accessible. Might want to get that 50 gallon tank sprayer with the Honda gas engine, or whatever you can find with solid gpm and ~ 40 psi to reduce aerosolizing.
 

Russell Plumb

New Member
Sounds like you’re looking for a Maruyama
You can plug in your jd9, a fert needle or an HTI with the right attachments.
You won’t be reaching 30’ tho.
 

TsugaPHC

Member
As far as battery-powered backpacks, I have a Dramm that I really like for shrubs, but there’s no way it has enough ass to spray trees. Maybe a mist blower like the mosquito companies use would work. I’ve actually recently been considering getting one for a fungicide application on a contract I just landed where the trees are in a location that dragging hose to will be a giant pain in the neck. Solo’s website says their unit can hit 38 feet with a supplemental booster pump. Anyone have experience with one?

https://us.solo.global/mist-blower/6-451-backpack-mist-blower.html
 

climbhightree

Well-Known Member
Not a backpack, but my former boss is putting these together. Picture is from his stand at the TCI expo. I can try to get more information for you, if you are interested 20181109_132137.jpg
 
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