[Stevens706]

Even though you don’t like rhubarb, you can still use the leaves as an insecticide, once you have fermented them in water.

[ruth82]

that sounds good, how do I do that then? soak in water in a warm place i presume but how long for? (sorry, new to all this gardening lark!)

[Stevens706]

There are two ways
1.   Boil the leaves in a pan, leave to cool and strain
2.   Just place the leaves in a bucket etc, cover in water for a month or so to rot down (same method as with nettles for fertiliser), this is what I will be doing soon.
Google the subject and you will find loads of hits

Hope this helps

[DD.]

You forgot the warning - it stinks!!

[Stevens706]

True, it does stink, I soak mine in a bucket out of the way down the allotment