Wayne we have both burmuda and crabgrass from our neighbors well tended lawns creeping into our yards. on the one side, due to their unchekd water leak.. i agree. its a huge issue, and i'm going to have to dig it all up by hand and put a double later of cardboard down and bamboo rizome weedbarrier to keep it out in the future. on our southside, the neighbor has an uncared for unwatered yard, like outs has been. and the hard compact clay has been a challenge to the most tenacious burmuda, where the crabgrass will not even grow at all. 75% of our front yard borders with our south-side neighbor and wasbarren dry, dead, lifeless, grasses soil. when little burmuda grass was clinging to life, has been covered since early may and early june and not come through the cardboard at all. even though the city has mandated we keep the woodchips drenched (because the newly about 20-something code enforcement ladies think the woodchips will explode into a roaring flame any second ::eyeroll::). it probably has less to do with what i did and more to do with how lifeless and dead the yard was to begin with. My goal is to keep it from creeping in from the neighbors.
Now the southside neighbor i am going to secretly sow miniclover into his barren lifeless yard that borders ours and is well on its way to being a desert. but our northside neighbor with his waterleak has contributed to a nighbmare of tenatious crabgrass and burmuda that keeps creeping back into our yard. where the woodchip pile sate for a year in that yard, all burmuda and crabgrass has died out completely. but aroudn it, on the edges, yes it has grow right up through. but there was no cardboard barrier on that side of our driveway.
weve been here 3 years and ive been caring for sick relatives, and then my failing health and the yard has further gone into a state of permanant death. without water or care.. grass is not even growing at all. just the queen annes lace or hemlock thats taken over the entire back yard.
my main concern is keeping the neighbors well tended burmuda and crabgrases out of our yard. i will continue to pull and smother when it pops up within our yard.