Firstly, there is a difference between natural and organic, but for those who are attempting to avoid harsh chemicals -
I came across this (bloggish) web-site which has a wealth of info (by text and links to other sites) addressing fungicides and pesticides.
I know for a fact that soapy water is sure death for aphids, but was wondering if anyone has successfully used any of the other teas/potions? Particularly in the case of a fungicide, how long/many applications need to be made before results are seen. It's my understanding that these applications require much more time than their chemical counterparts.