I also used to plant Caper Spurge at Haddock's to see-off Moles and Mice. Again I have no idea if this actually worked, but I religiously followed the advice and suffered from neither.
Mint, Chives, Sage, and Basil, are also supposed to work anti-insect miracles, so maybe I'll replant some up amongst my Beans Cabbages and Carrots.
I'm sure many veg' gardeners out there will want to enlighten me about beneficial plantings. Mostly I suffer from White Fly and Aphids, so any 'tried and tested' suggestions against these pests in particular will be gratefully accepted.
At present I am using 'wildlife friendly' slug pellets (for obvious reasons), a very small amount of natural Guano fertiliser (it's very expensive), and I occasionally water my plants with a diluted savon noir (a glutinous soft soap) solution against bugs in general, which is not always successful. That's it!
p.s. The above photo was taken yesterday during a very brief period of sunshine, otherwise it's been bloody awful here.