It's a shame you have to go to those extremes, but hopefully he'll outgrow his nautiness, and you'll regain easier access to your own garden!

One great benefit of little dogs is that they walk through the plants in the garden, rather than on them.

Yes that is probably the best idea, unless he is a good jumper.
One of our Ridgebacks used to sail over the 6ft boundry fence
Good luck with pups teen years may they be a little easier on your garden.
Cheers...MM

Something I didn't suggest earlier - when my Cocker Spaniel was a roly poly puppy intent on destroying my garden beds with her rush in ....drop....roll on the plants attack, I put 60cm bamboo sticks at 1m intervals all around the beds I was most concerned about, and strung loose, fine string between them - 2 rows, one at about 20cm high the next at about 50cm. The first time she barged into it, I had to fix it up abit. She didn't do it much after that. It would be a bit like walking into a large spider web - both dogs disliked it intensely and learnt quickly not to go near it.
The great thing from my point of view, was that it was almost invisible except for the sticks, so it didn't look ugly around the beds.

Hi, I'm new here so don't know how old or what sort of dog you've got but I'm a breeder and have the same problems.
I use offcuts of galvanised mesh about .5m high x 2-3m long around my gardens. The dogs can jump in but deters them most of the time.
I also lock them up at night or when I'm out if they are going through that stage. Teething or boredom are the usual culprits, plenty of toys (chewable), bones and exercise helps.
My gardens cover about 1/4 acre all up and I only mesh important ones and fully fence my vegie gardens (I also have chooks), the rest of the gardens suffer but they're not a formal style so it's not noticable.
Have patience your pup will grow out of it though my boy (dog that is) is nearly two and still chews when he is bored.

Hi goldhills...as the others were told in earlier posts (see under "he's at it again" and "nearly ready to kill the dog!" posts lol) he's a 9 month old German Shepherd.

This one is so different from my last shepherd, in that he is always challenging me...the other would challenge, get told off a couple of times, learn from that and not do it any more, but this one just keeps pushing the boundaries, even though he understands and obeys when I tell him to do something, he'll turn around and do it again, then look for a reaction. I've learnt not to give him one! A classic example is when he jumps onto the outdoor table...he only does it if I've missed taking him for his walk; he'll stand on the table, and look for me through the large back windows, to check my reaction

I love shepherds, used to have them before I got golden retrievers. He sounds a handful and shepherds don't seem to grow up until they're 2.

Another option you could try is a correction collar. Either citronella or the shock type. I prefer to use citronella but you may need something stronger.
I've used one on one of my dogs. She was an escape artist and whenever I took her down to the dam for a swim she wouldn't come back - just took off, also kept taking shortcuts through my garden. Obedient at other times though.

The collar was my last resort but I now have control.
You have to be watchful, but when you catch the dog doing something wrong, press the remote control and the dog receives a squirt of citronella. Doesn't hurt them but don't like the smell.
The shock ones work the same way but give a zap - apparently no worse than a static shock.
They're not cheap but if they save your sanity they're worth it. Saved my sanity - the dog was driving me crazy.