Here are a few little tips that I have come across that may be helpful.  I will add to these as I discover more that may be of use to you.

  • Mustard planted between rows of vegetables may help to keep slugs and snails away
  • Plant strawberries with garlic or onions to prevent fungal diseases in strawberries
  • Plant nasturtiums around fruit trees to help to prevent aphid infestation
  • Plant dill between rows of beans