Category: Dispensers

Electronic Sprayer – Our Newest Dispenses Herbicides with High Precision as Foam or as Spray

In this piece we identify the key advantages of our new ultra-low pressure electric dispenser (patents pending).  (See also this YouTube video: Electronic Dispenser Dispenses Herbicide with High Precision.)

ElectricDispenserPhotos3-24-17

First, when used as a sprayer (i.e., for spraying liquid drops), ultra-low pressure (i.e., less than about 15 psi) offers key benefits.  The biggest is less off-target spray.   We did indoor testing in 2016, where we sprayed colored water on white paper using a Hypro(R) 30HCX8 hollow cone nozzle.  We sprayed at a variety of psi’s.  What was particularly striking in these tests was how far the spray extended beyond the primary spray band at higher pressures.  At 30 psi, the spray band extended at least 30 inches beyond the center-line!  This was an indoor test with no wind.  At 9 psi the “shadow spray band” only extend 15 inches.  This means, if you are spraying at a high psi,  you are doing off-target damage to desirable plants and wasting a lot of expensive herbicide.

ShadowSprayBand

Second, ultra-low pressure places far lower demands on the pump and battery.  This means our electric sprayer can be far lighter than the competition.  Other electric systems typically weigh well over 15 lbs.  Ours, even with the fully padded backpack frame, weighs about 10 lbs.!

Third, ultra-low pressure makes great foam!  For example, you can hook up our foam-making attachments with the mesh brush.  Use it to wipe foam herbicide onto foliage or onto stumps.  As shown below, you will get high precision, no drippage (like you do with conventional wiping systems), and extended absorption of the herbicide into the weed’s vascular system because the foam keeps the herbicide in liquid form longer.  (Here’s a YouTube video: Cut Stump Treatments)MeshWiperBrush

We will be producing a limited quantity of our Ultra-Low Pressure Electric Dispenser in the first year (2017).  We are primarily selling it to professionals with a strong need for the benefits offered by the system.  Please contact Green Shoots for availability and pricing!

Basal bark applications of herbicide with new ultra-low pressure dispenser

Our new dispenser works great for doing basal bark applications of herbicide.

015-340x800Basal bark treatments involve the application of an ester herbicide in an oil carrier to the bark of a tree.  We actually dial the pressure in at 2 psi – i.e., very low!  This produces a narrow stream of herbicide that can be precisely applied even to very small stems such as the one shown below.  This reduces off-target harm and reduces herbicide waste.  We posted a YouTube video that goes into greater depth.

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New Product – Electric Backpack Sprayer with Precision Spray Technology

Green Shoots will be offering a new electric sprayer in 2017.  The sprayer will operate on ultra low pressure.  This has lots of advantages including more precision and less off-target spray.  This is especially important when spraying herbicides because off-target spray can harm desirable plants and waste expensive herbicides.  The battery will last for a full day.  The sprayer can also easily be converted into a foam dispenser.  The sprayer will have all sorts of other great features, many of which are shown in the following photos.

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The pressure can be adjusted in increments of 0.2 psi and from 1.5 psi to 12 psi.  Pressure from about 1.5 psi to 10 psi works great for dispensing foam.  Pressure from about 5 psi to 13 psi works great for spray.  Green Shoots will also offer a very comfortable backpack frame with a hip belt.

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Remember with this electric sprayer there is no pump lever, so one hand can hold the spray wand and the other can be free.  Elimination of the pump lever also makes it much easier to maneuver in thick brush.

Ultra Low Pressure Sprayer – New Prototype Being Tested

We are testing our latest innovation – an ultra-low pressure sprayer.  It can operate at under 10 psi.

Ultra Low Pressure Electric Dispenser

Ultra Low Pressure Electric Dispenser

Spray pattern shows evenly spaced droplets

Spray pattern shows evenly spaced droplets

What are the advantages of ultra-low pressure?  First, there is less drift.  That’s because the ultra-low sprayer consistently produces medium size drops, not the very fine, drift-prone drops.  Second, the drops from the ultra-low sprayer travel slower through the air.  This means that the drops are less likely to bounce off the foliage of the target weed.  Finally, the ultra-low pressure sprayer uses very little power.  This means the sprayer can be lighter and still operate for a long time on a single charge.  Here’s a video of ultra low pressure sprayer demonstrating the new dispenser.

Targeted Weed Killer

View this PowerPoint presentation: Targeted Weed Killer: Precision Foam Herbicide Delivery System.  It explains the advantage of using foam herbicide:  less risk to desirable plants because of reduced drift or overspray ; an increase in herbicide uptake because the foam keeps the herbicide in contact with foliage longer; improved visibility because foam is easier to see than liquid; and reduced herbicide waste because the precision reduces waste.  We offer six different before-and-after examples such as the one shown in the following photos:

Application of Foam Herbicide to Bull Thistle Rosette

Application of Foam Herbicide to Bull Thistle Rosette

Dead Bull Thistle 8 Day after Foam Herbicide Application

Dead Bull Thistle 8 Day after Foam Herbicide Application

Note this: in this application, the chemical used was glyphosate which is a non-selective herbicide.  If that herbicide had contacted the grass, it would have killed the grass too.  As shown in the photos, that didn’t happen.  This is a testament to just how precise you can be with the Green Shoots System. z