Formula for stump killer

[metalman1]

Hi,

Years ago I knew a forester who tole me a good mix for stump (or tree) killer was trichlopyr 20% and gasoline 80% by volume. But recently I bought some trichlopyr at HD and the mixture does not blend nicely together, it seperates. I have been using it by shaking the mixture vigorously just before dipping then brush in it, then painting that onto the stump. Is there some other way to get these to blend together? 

Maybe gas is not the ideal solvent/carrier? 

Thanks. 

[Magicman]

Triclopyr ester is a systemic herbicide, absorbed by the plant and ... 20-30% in basal oil, diesel fuel, fuel oil, or kerosene, not gasoline.

[metalman1]

Triclopyr ester is a systemic herbicide, absorbed by the plant and ... 20-30% in basal oil, diesel fuel, fuel oil, or kerosene, not gasoline.

Thanks, Magic. So, in your opinion, using any of the above except gas will mix completely, and not separate like oil/vinegar?

[Magicman]

I did a Google search and captured that information.

I would think that a bit of surfactant such as dish shop, etc. might also help to break it down to an emulsion that would stay fixed.

[metalman1]

I did a Google search and captured that information.

I would think that a bit of surfactant such as dish shop, etc. might also help to break it down to an emulsion that would stay fixed.

Good to know. Thanks. 

[WDH]

Yes, you can use diesel fuel or crop oil.  I have used the diesel. 

[Pullinchips]

I personally would use 50/50 diesel and triclopyr . With herbicide, FOLLOW THE LABEL! ITS THE LAW. This is actually listed on the label. You can also use it 100% I believe. But don't quote me or take anyone elses word. Read the label. You are liable for chemical you apply and any damage that you may cause from in correct application. Now tryclopyr is not as nasty a herbicide as some of the others like velpar or Streamline or some of the other super nasties that can volotilize and hang in creek bottoms and move down hill.


I am telling you this advice as a licensed herbicide applicator.

[Al_Smith]

An old trick that may or may not work  is powdered milk all over the stump and covered with a tarp .If conditions are right it will sprout mushrooms .Given enough time the stump will disappear . 

[RPF2509]

Pullinchips is right - Read the label - its the LAW.  Never mix with gasoline!  The ester formulation will mix with oil (diesel, crop oil).  The amine formulation will mix with water.  Both work when applied according to the LABEL.  READ the Label for the mixture that works on the species you want to treat.  I am a licensed agricultural advisor.  READ the LABEL! and follow its recommendations

[Al_Smith]

My dad told me about using "saltpeter " a really old method that evidently worked . I have saturated them with diesel fuel and built a fire over them that does work but it might take several tries to get it burned down below grade .
Depends on the tree .A maple will go by itself in a couple of years .An eab killed ash the roots will fail after about 5 years .An oak might stay longer than you might live .I've got a red oak stump I know is over 30 years old and it's solid as granite  still .