PS. A neighbor told me that if we a gardner, that the grass and weeds from the other people's yards that they mow, gets 'seeded' into out yard from their mower. Is that right?

Thank you very much for your inquiry. I suggest you buy a product called Acclaim extra (fenoxaprop-ethyl). It will take out crabgrass easily, and with repeat applications 2-3 weeks apart will knockout the bermudagrass. You will need to go to a turf specialty/supply store (like Lesco) to get this product, I believe.

Seeds and stems do travel via vehicles and water. There is little to do to prevent it. It has been happening in nature since the beginning.

Again, thanks for the question and let me know if you have more.

Respectfully

Trey Rogers, The Briggs & Stratton Yard Doctor, YardDoctor.com