How do you gas pressure washer to apply pesticides?

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I have a big yard and been using the hand sprays but it takes too long. I have a pressure washer and are trying to figure out the way to use it to apply pesticides. Any suggestion?

 

[bertsmobile1]

Yes,
Don't even think about it.

99.99% chance you will bugger your pump

Pressure washer are designed to deliver a lot of water at a very high flow rate and pressure.

Sprayers are designed to deliver a tiny amount of liquid at a much higher pressure and substantial lower flow rate.

12V spray packs are not expensive and usually come with a much longer wand to keep your lungs a lot further away from what you are spraying which is usually a good idea with herbicides and even better with insecticides.
Not hard to fab up a rack to go on your ride on and power it from your battery

 

[RDA.Lawns]

Besides the risk to your health you also lose the ability to correctly control your spray rate .making chemical less affective .My set up with the cluster nozzle was less than 250 for complete setup

 

[RDA.Lawns]

 

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How do you get rid of these weeds?

I have St Augustine grass and these weeds keep growing with it (pictures below). What would you use to get rid of just the weeds?

 

[RDA.Lawns]

A turf grass spray . There are several different ones available. Msma works well. However I would not do anything until early spring. Herbicides don't work in cool weather.

 

[bertsmobile1]

Re: How do you get rid of these weeds?

I have St Augustine grass and these weeds keep growing with it (pictures below). What would you use to get rid of just the weeds?

That is not strictly a weed
That is a winter grass that grows faster than St Augstine in cooler weather.
Usually a lawn will need several different varieties of grass to maintain a nice green cover year round.
You need an early season, mid season, late season & winter grass varieties and they may even be all varieties of St Augstine.
At each part of the season , one variety will grow faster than the others and this is most previlant when the temperature drops and the bulk of the grasses stop growing.
So just mow it.

 

[johnmoody]

Hi, we spray pesticides with the help of mechanical spray.

 

[RetireeRon]

Yes,
Don't even think about it.

99.99% chance you will bugger your pump

Pressure washer are designed to deliver a lot of water at a very high flow rate and pressure.

Sprayers are designed to deliver a tiny amount of liquid at a much higher pressure and substantial lower flow rate.

12V spray packs are not expensive and usually come with a much longer wand to keep your lungs a lot further away from what you are spraying which is usually a good idea with herbicides and even better with insecticides.
Not hard to fab up a rack to go on your ride on and power it from your battery

^^^^^^^^^^
This right here is your answer. Either buy yourself a 12v, and they aren't that expensive, or use a drop spreader and go granular. Pressure washers are not the right tool for what you're wanting to do!