My dad has some Japanese honeysuckle that is completely taking over his garden spot....he's tried digging it up, cutting it back, etc. but it's a full time job, with not too great results..... It grows in other areas of the property, too, covering up small trees and killing them. Any of you who have dealt with this.... what did you do to get rid of it? He has hesitated to use chemical means, but is beginning to lean in that direction, as this is a very invasive plant. Thanks for any advice you can offer!