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:
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
You have an unwanted tree growing vigorously in the wrong place – in the middle of a flower bed or in a native grass planting or next to a building foundation. You know you need to remove it. Winter is actually a great time of year to do this. Herbicides work fine in the winter if applied correctly. See Reinartz 2002.
If you simply cut the tree or bush down, you will soon get something far worse in the spring: a multi-stemmed bush like the one shown below on the right side.
There is a simple way to prevent this from happening: use the Green Shoots Foam Herbicide System to precisely apply a concentrated herbicide to the stump immediately after cutting to kill the stump. So here is what you do.
- Cut back the tree or bush – If it is a big tree or bush, I typically cut off the upper branches first and leave a tall stump anywhere from knee to shoulder height. Clear out the branches so you have room to work.
- Prepare the Foam Herbicide Dispenser according to the instructions. Be sure to read the herbicide label.
- Cut the stump close to the ground – try to cut it within 2 to 4 inches of ground level.
- Immediately apply the foam herbicide to the cambium layer of the stump. This is a thin layer of live inner bark just inside the outer bark.
The Green Shoots Foam Herbicide System has several advantages over standard herbicide sprays:
- Precision – This is critical when you are applying to the narrow ring of live inner bark less than 1/10 inch thick. With a liquid spray, the application is so imprecise – you may miss your target. At the very least, you will waste herbicide trying to hit the target.
- Less Drip – The foam herbicide sticks to the target and will slowly soak in. Liquid sprays will bead and drip off the target.
- Visibility – the foam is visible for some time after the application. This helps in identifying what part of the target you have treated.
For more information about the Green Shoots Foam Herbicide System, visit the Green Shoots website.
The new Large Handheld Foam Herbicide Dispenser from Green Shoots will launch in March, 2014. Two nozzles will be available: the foliar nozzle works especially well for foliar applications of foam herbicide to woody plants. the extension nozzle works well for spot treatments such as cut stump treatments. Here is a You Tube video of the Large Handheld being used for a stump treatment using triclopyr herbicide (Dowagro trade name: Garlon 3A; it is also sold under the Ortho trade name Brush-B-Gon). Triclopyr is often used for woody brush. Note in the video how precise the application with no drippage and full absorption into the stump face. The extension nozzle is approximately 15 inches long so it gives you great reach. That means less bending and stooping. If you are doing more than a couple hours of stump applications, that means a lot!
Green Shoots sells concentrated glyphosate in quanitites that are ideal for homeowners who are tackling woody brush or weed trees. We sell a 16 ounce bottle of concentrated glyphosate (41% active ingredient). Many stores sell what they call concentrated glyphosate. Don’t be fooled. Usually the concentration is well under 20%.
Especially if you are doing cut stump or frill treatments, a concentrate is essential. Glyphosate works well on plants in a concentrated form. It is almost like a quarterback blitz – glyphosate works better with a quick rush than with steady pressure. That’s why you need the concentrate.
Feel free to contact me with any questions. Just go to the Green Shoots website for contact info.