I agree that just because the lawn maintenance people dumped some pesticides on your garden that your organic intentions need to be put aside. That is deplorable, however, and I hope you gave them grief over it. There are some organic weedkillers on the market. I'll post the links and my experience with them, but first...
Here is a page that compares Round-Up and Burn-Out, an organic weedkiller:
http://www.espoma.com/ET-familypage.aspxHere is a list of the damage Round-Up can cause:
4. Glyphosate has shown a wide spectrum of chronic toxicity in laboratory tests....
5. Roundup contains toxic trade secret ingredients. These include polyethoxylated tallowamines, causing nausea and diarrhea, and isopropylamine, causing chemical pneumonia, laryngitis, headache, and bums.
6. Roundup kills beneficial insects.....
7. Glyphosate is hazardous to earthworms....
See others at:
http://www.organicconsumers.org/ge/monsanto-hazards.cfmI don't recommend making your own organic weedkillers with vinegar because you have to get vinegar that has a high percentage of acetic acid and that is hard to do.
The best solution, IMO, is what is recommended on this thread--dig up the mints, put them in pots, and post an ad on craigslist: mints--50 cents a pot! Or put them out on a table by the roadside with a sign and a little box for the "honor system" and sell them for 25 or 50 cents a pot. I don't recommend giving them away because people don't value what they don't have to pay for. BTW, did you know that mint is always a bestseller at garden centers and plant sales? Yes, it's one of the most popular herbs.
I dig up mints all the time and find their root system comes up easily. I loved Dover's suggestions. I make herb teas a lot by just washing the mints and putting them in my crockpot for about six hours. I throw in a few green teabags for the health benefits. This will make your home smell w-o-n-d-e-r-f-u-l!
Now if you must use a weedkiller, here are two organic ones:
http://www.espoma.com/ET-familypage.aspxand
http://www.biconet.com/lawn/burnout.htmlI've used the latter and it smells heavenly--like cloves and orange. The supplier I posted is also a good guy from whom to order. Those little spray bottles the smaller sizes are sold in are useless--you will break your hand spraying with them. Get yourself the larger size and a good sprayer.
Make no mistake about it, however, this organic stuff is powerful, even though it is just made up of clove oil, mineral oil, etc. I spilled some on top of my refrigerator and it took the paint right off. Yikes!
And that's essentially why I have mixed feelings about the use of either organic or chemical weedkillers. Bottom line is that even though you spray them, the weed is still there, in all its dead and burned out ugliness. You still have to pull it or get rid of it in some way.
There's another consideration: if you pull up the unwanted plants (weeds), you discover this whole ecosystem going on underneath your feet. What does this weedkiller do to that ecosystem? That's my question. I would be appalled if I thought I was hurting my earthworms.
All in all, it seems easiest to just use the mint to your advantage in some way.
Cher