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+--- Thread: wai-wi (strawberry guava) removal? (/showthread.php?tid=13809)
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wai-wi (strawberry guava) removal? - WillyHunglo - 06-19-2014
Hey guys and gals, I was just wondering what techniques others have to remove the wai-wi guava (spelling?). What I've been doing is chain sawing them down then lighting a fire on the stumps using the dried guava wood a few months after the cutting. However with so many stumps and the tough-to-burn green wood seems like the guava is growing back faster than I can keep it away. I usually prefer organic methods but I'm willing to try just about anything at this point. Any helpful tips?
RE: wai-wi (strawberry guava) removal? - microage97 - 06-19-2014
chainsaw or loopers and then 10% 2,4d kills it dead. I hate the stuff but works.
RE: wai-wi (strawberry guava) removal? - kalakoa - 06-19-2014
Waiwi are very susceptible to Triclopyr; there is a low-concentration water-based "brush and vine" that works well, and it's far less nasty than Crossbow or similar.
"Lilly Miller" brand, Farm Supply Coop, about $23/quart, effective at half-strength.
Drill a hole in the stump (or a few holes, if it's large enough) and fill it with the poison, better exposure, less run-off, and you get a clear indicator for "yes, that one has been treated". Use an old soap bottle or similar.
RE: wai-wi (strawberry guava) removal? - Rene Siracusa - 06-19-2014
For larger trees you can drill a hole at a downward angle with a large bit, no higher than 18" above soil level. Then inject the herbicide. An old dishwashing liquid bottle can be used for this. This method keeps the herbicide away from all non-target plants and out of the soil and air. It also uses very little herbicide while being very effective. I tie a piece of red surveyor tape around the treated trees, so I know which ones I already did.
The first sign that the method works is that all the leaves will fall off. The herbicide will work its way through the tree's system, so that any fruits on it will be unable to reproduce. Eventually the tree will dry up and fall over, and you can pull it up roots and all leaving no unsightly stump to trip over.
I use Ortho poison ivy killer, which comes in a pint bottle for $12-13. Dilution is 1/2 cup to 1 gal. water, so it goes a long way.
RE: wai-wi (strawberry guava) removal? - allensylves - 06-19-2014
The Forest Service method for weed trees is to whack with a machete/hatchet, about every 6" on larger trees, and squirt in 1 ml (+/- 1 squirt with a spray bottle) of triclopyr (undiluted). Google "hack-and-squirt". You can also treat FRESHLY CUT stumps, concentrating on the wood/bark region on the top. 50% triclopyr (@ an original 8 - 10 % = 4-5% AI) will work for that.
Allen
Finally in HPP
RE: wai-wi (strawberry guava) removal? - birchl - 07-01-2014
Just keep chopping it down. It eventually gives up.
keep stripping new growth off the stumps, they will die. The injector method sounds precise and maybe quicker ( it takes about two years for a stump to rot it's roots). I hate the idea of injecting the earth with any more poison, but sometimes its the best way. This tree is very invasive so to some extent on the spot killing toxins are better than inefficient, time consuming hand clearing that allows its spead. Someone told me once that if you bang copper nails into a tree, they poison it, but I don't know if its true.#10048;
RE: wai-wi (strawberry guava) removal? - shave_ice - 07-01-2014
If you don't want to use poison, you have to pull out the stumps after you cut them down. Otherwise, multiple suckers will just regrow, making the forest even thicker and denser than before. I use loppers and a saw to cut each root and then use a pick-ax or oo bar to yank out the stump. It's not exactly a fun task, but it is definitely a workout and a good way to get frustration out if you've had a crappy day at work. Haha.
RE: wai-wi (strawberry guava) removal? - Tink - 07-01-2014
Ah yes, nothing like banging on a tree to vent! When I had time (what's that??), I used to go to the golf course and "address the ball" (the bosses name was usually first!), and WHACK!! Down the fairway he went! The real plus to this is you get to address 17 more if you had a really bad day!
Are you a human being, or a human doing?
RE: wai-wi (strawberry guava) removal? - Bullwinkle - 07-07-2014
cut tree - then paint the stump while still wet with round up - I add food coloring to keep track of what is treated.
"Alligator" is the tool I use most for hand clearing - the wired one has more oomph - the cordless primo for working in the brush.
http://www.amazon.com/s/?ie=UTF8&keywords=black+%26+decker+alligator&tag=googhydr-20&index=aps&hvadid=28650477807&hvpos=1t1&hvexid=&hvnetw=g&hvrand=6656544564463446940&hvpone=&hvptwo=&hvqmt=b&hvdev=c&ref=pd_sl_4kfygwl8t4_b
RE: wai-wi (strawberry guava) removal? - eigoya - 07-09-2014
Yes, but how long does the slash or drill and spray take?
I've been watching this "autograph leaf" tree get more vigorous with every squirt of poison oak and ivy... It will be three weeks soon.....