I've been at war with both Asian jasmine and honeysuckle. Jasmine loves Roundup, but it kills honeysuckle dead. I'd use the 18% concentrate.

Recently I've had the opposite problem. I really like honeysuckle, it reminds me of the years I spent in Georgia, for some reason. But I like the shape of the flowers, and the vining, and the colors of the flowers, and smell that wafts from honeysuckle. But the place I have the one honeysuckle plant is not doing all that well. It gets probably four to five or five to six hours of sunlight a day, it has great drainage, I water it at least every other day, and yet the leaves on it keep turning a mottled yellow. Any suggestions?

I love Native coral honey suckle but that Japanese stuff should be illegal. It does so much damage to the woods when it gets out of control. I have a almost red variety that is very floriferous.

wilo
I know good fences make good neighbors, but what about
'bad' fences? I'm usually of the mind that mutual space
should be respectfully negotiated between both parties when at all possible. My concern is that if you make an independent decision based on the assumption that your neighbor 'might' not be cooperative, the result could be much more trouble and aggravation than the honeysuckle issue is worth. So think it through carefully. Maybe you could bake some brownies as a peace offering and then invite the neighbor over for a discussion. Have some alternatives to the honeysuckle in mind to suggest and listen listen listen to the neighbor's concerns.
good luck!

pasadena
Why not move it? It's easy to dig it up and reroot it.
Just be careful what you wish for!

I've got some trained to a fence is a secluded bed (surrounded by a cement walkway) so it's under control
And ahhhhhhh....that fragrance just brings me to my knees! The hummingbirds love it and they usually arrive just before it blooms.