Hi Jacqui,
I got your question in an Oooby email but it doesn't seem to link to where you posted it so I am starting a new discussion. Hope you find it.
Use branches of Wormwood (Artemisia absinthium)
Grows wild on lots of roadside banks.
I have used it successfully here for 35 years.
Elisabeth
Replies
the other approach is to freeze 'em out. you can slide one or two frames at a time into your freezer, then stored in airproof box. or find a business with one of those giant walk-in fridges.
Thanks Elisabeth, much appreciated.