None4U wrote:
I found a pdf of organic plant protection and how to make the stuff.

http://www.treesftf.org/resources/in...Production.pdf

Overall quite interesting.

One item about aphids caught my eye. This has come up recently in other
threads. It suggests that if you stop ants you will stop aphids spreading
which is not always true. Aphid's life cycle is complex but in some
situations they can fly and they can be carried long distances on the wind,
so then ants or crawling up from the base of plants are not the only method
for them to be spread.

David