[VoodooChile]

We've moved to 2.5 acres, half of which is wooded with various junk trees, including: buckthorn, boxelder and Asian mullberry.

I'm pretty confident my chainsaw and Dingo can take care off the buckthorn, but the boxelder and mullberry will require chemical warfare to prevent suckers from sprouting out the trunk.

Any suggestions for topical herbicides that kill boxelder and mulberry stumps?

[Bill Schwab]

I always had good luck with cutting them to the rootball in fall, then drilling a few holes in the stumps stems left over and dropping a 50-50 mix of round-up right into the wood. Or you could try some good old Copper Sulphate around the root balls.

[Dale Wiley]

Garlon, Crossbow, same thing.

I utilize Bills method, but I mix to label directions EVERY time.

Those two are petroluem base, so you can mix them in diesel to make them go a little farther.

Round up neutralizes in diesel, so stick to water with it.

[VoodooChile]

Just met with a client today about Buckthorn removal, and we got into a discussion about the best time to apply Garlon.

Some of the material on the web recommends dormant application to minimize drift effects on desirable vegetation.

I had heard that kill rates are higher with dormant applications as well, but I haven't been able to confirm that.

So...does anybody have experience with Garlon application during the active growing season? Were your kill rates as high as during dormancy?

Not looking to be right or wrong here...just wondering if it makes a difference when the herbicide is applied.

In this client's situation, dormant application is going to be hard to schedule...

Thanks!

[Fine Edge]

If Garlon and Crossbow are indeed the same thing, we've had good luck in years past doing a spraying when it's actively growing. We waited for the cut-off stumps to flush out and sprayed it then.
Also, had very good luck killing off saplings around 12" high.
That's all I can tell you since we no longer do any spraying.

[bricknblock]

stump grinder

[VoodooChile]

This is a 300 hundred acre property with major Buckthorn infestations along the perimeter. Mechanical methods, like removal or grinding, aren't practical or cost effective.

Herbicide applications have the advantage here of minimizing soil disturbance and being the fastest means available.

[start2finish]

what Bill is talking about is called a basil cut or basil spray. you apply a highly concentrated herbicide to the fresh wound.

I prefer Crossbow to roundup, it is a little better on woody plants.

is is merely 2-4-d which is a ag chemical and not labeled for this application, crossbow is the higher priced "commercial" version.

this next statement is elementary for you voodochile, but others reading this thread might benefit from knowing the weather conditions will affect chemical applications effectiveness. extremely cold or hot temperatures are not good times to spray.