I've a friend who is losing a battle with some 4' tall, fibrous weeds on her 1/4 acre lot. I bought a gas powered brush cutter and knocked them over once but they are back.
http://www.ryobitools.com/catalog/expand_it/trimmers/RY26000 # http://www.ryobitools.com/catalog/expand_it/trimmer_attachments/RY15702 #
My friend does not want to use any gas-powered tools because of reliability and noise.
She has been attacking the weeds with a standard A.C. powered 'Weed wacker'. (Black and Decker 'Grass Hog'). Clearly, the fibrous stalks are more than a match for the weak 'fishing line'. She is well on her way to trashing her second 'Grass Hog'.
I think that an A.C. powered mower / trimmer would work a lot better for her but my Google-fu fails to locate anything like that. Lots of gas powered units but nothing quieter and reliable.
A standard A.C. mower isn't going to work on these monster weeds because they grow very high, astoundingly quickly.
Short of slicing the front wheels off an A.C. mower, what can I do to help her be self-sufficient?