Roundup

[cary lichtenstein]

I heard somewhere that roundup is really not nearly 100% effective and that grass grow back that were supposedly killed off. Is this true?

[Joe Hancock]

Cary,

The situation you state is subject to so many variables that there is no way to say simply yes or no. I'm assuming you are talking about bermudagrass, based on where you live?

More info, please.

Joe

[Chris Neff]

Hey Cary!
That is true. Roundup is not the perfect answer when trying to remove Bermuda. Many courses have tried and failed in this situation. Many clubs have gone to Methyl Bromide(Fumigation) to remove any existing plant material. This is not completly the answer as well. Many clubs have seen some regrowth from old grasses with this situation. It's a tough situation because it comes down to what are you getting for your dollars and cents. It is very difficult to have one variety of bermudagrass on golf courses inless you are starting with virgin land that never had anything planted on it.

Chris Neff

[Patrick_Mucci]

Cary,

It depends on the dosage, methods of application and weather and a few other variables.

Chris,

Some clubs used Methyl Bromide and Roundup with seperate applications after roto-tilling.

Isn't MB off the market ?

[Joel_Stewart]

Does it work on Kikuyu?

[jg7236]

I thought Methyl Bromide was out lawed.....  Doesn't have a similar chemical structure as "Agent Orange" that was used many years ago in chemical war-fare?

[James Bennett]

Does it work on Kikuyu?

Joel

we use a spot spray of Monument, with a little bit of colouring.  This manages the kikuyu outbreak (that a member has found and 'red-flagged'), enables the flag to ber removed, and communicate to the member that the patch has been attended to.

Monument is selective, taking out some grasses (eg kikuyu) whilst leaving the couch (bermuda).  With round-up we get too much peripheral damage to deal with small outbreaks.  Not sure how succesful we have been at getting all of the seedbank, as some regorwth seems to occur the next year at times (albeit small outbreaks).

If you try Monument, be careful with surrounding grasses - I have heard of some stories of the chemical being tracked to less desirable, soft grass places nearby.

James B

[Joe Hancock]

Methyl Bromide is a fumigant and I believe it was applied under a impervious barrier as a gas.

Agent Orange included 2,4-D and Paraquat, both very powerful defoliants that existed in liquid form. I think memory is serving correctly on that.

I remember when I first went to NC, Paraquat was the herbicide du jour for removing winter annuals out of dormant bermudagrass. I also remember the label was "Danger", the hishest risk label there is. I believe I was told a tablespoon of it could kill a human if ingested.

Nasty stuff.

Joe

[S. Huffstutler]

Methyl Bromide is still available as long as stocks last and there is a lot of it stockpiled. There is also a political move afoot to allow it to be used on golf courses, at least here in Florida. Round-up will not entirely eradicate Bermuda, especially Common Bermuda, neither will Methyl Bromide. Bermudagrass is the #1 grassy weed in the South.

Steve