yo bill i have recieved the work order for hand removal of the oak in question, but it doesn't seem the good fight. Even you doubt the effectiveness of such action, as i'm sure you realize that birds eat the berries and spread them everywhere. I do find it interesting though that you would ask the community about throwing in a couple anchor bolts and neglect to ask anyone if spraying roundup is wanted or needed. A quick search of google came up with several sites stating the hazards to mammals and fish. some problems with the product are skin irritaion and skin rashes, on top of it taking 140 days for half the chemical to degrade from the soil. so anyone complaining of irritants caused from there rope, it could be oak it could be round up. Sorry off the soap box. something more along taste of this site. Whaaaaa I get a rash when i go the cliffs whaaaaaa!!