control of wainaku grass

[laurarice]

I have a lot of wainaku grass over an acre and in spite of mulching to smother it, digging and pulling it is still sprouting. Apparently it is almost impossible to get rid of. But I researched and the forestry dept has a protocol for killing it in the Everglades where it is taking over:
1. Burn it to the ground. this gets rid of stems and removes a source of energy to resprout
2. Wait until it resprouts to 8 inches and spray with alligar at the second to highest rate. Will will STOP the growth but it will not die
3. Wait three weeks and spray with alligar again
4. Wait another 3 weeks and spray with alligar again.

Please do not scold me for using an herbicide. I use it judiciously and only when essential. Those rhizome stems go up to 6 feet deep.

Laura

[taropatch]

Roundup does it. When it turns brown, I tell people, the worst thing you can do is yank the dried grass just because it looks dead. Although it looks ugly, leave it there till the bitter end. Repeat spray in areas where new shoots are coming back. I would let the new shoots come up 6 inches before I'd even bother.

[bananahead]

yes glyphosate ..... ie Roundup, Honcho, Alligare etc.
when used as directed are very very safe stuff in reality... many not in the know are duped by brainwashed punatic fear mongers who have a beef with monsanto, and have no clue or experience with product.. ie has never been to seminars of the exact subject... or has never read unbias wikipedia, etc. on it, ie research or worked with the product professionally

imo... weedwack it, wait a few weeks to let it grow back a bit, then spray it. that way you wont have all that dead stuff...
aloha

******************************************************************
save our indigenous and endemic Hawaiian Plants... learn about them, grow them, and plant them on your property, ....instead of all that invasive non-native garbage I see in most yards... aloha

[Cagary]

Use one of the inhanced round up products with a surfate mixed into it. This makes the round up stick to the grass and not just run off of it.

-Veritas odium parit”(Terence 195–159 BC))-"Truth begets hatred".

[laurarice]

Just a couple of points. You can get herbicides to stick by just putting a little dish washing liquid into the mix.No need to buy a special folmulation. Second point: Alligar is not Roundup. It works in a metabolically different way. The grass stops growing, then yellows slowly and dies a lingering death. But yes respray new sprouts when they sucker starts growing again in an adjacent area

Laura

[HereOnThePrimalEdge]

enhanced round up products with a surfate mixed into it. This makes the round up stick to the grass
...
get herbicides to stick by just putting a little dish washing liquid into the mix


Herbicides often have two additional ingredients added, a spreader and a sticker.

Spreader: Like dish soap the spreader acts as a surfactant to reduce surface tension in the liquid, so instead of beading, it spreads more evenly across the surface it's applied to. With a more thorough surface coverage, the absorption rate is increased.

Sticker: This helps the spray to adhere to the leaf being sprayed so that after it dries (generally about an hour) it will stick to the plant/leaf should it rain. Although dish soap is a spreader, it isn't a sticker.

“Reality is what we take to be true. What we take to be true is what we believe… What we believe determines what we take to be true.” -David Bohm

[kalakoa]

If I could hire people to manage my vegetation for less than the cost of RoundUp™, I would do that instead.

[MarkD]

As with many substances that might be/are dangerous, dosage is key. Try to minimize your exposure.

Try not to get roundup--especially pure roundup--on your hands. If you are not using a mask when spraying, use more of a stream than a mist.

Breathing in roundup mist is ill-advised. (more likely on windy days) Adding a substance that increases adherence to vegetation (see writers above) probably helps reduce misting.

[Chas]

Thank you JustinK. Excellent post.