Hippy or otherwise!posted by VioletU at 3:51 PM on September 16, 2008 [1 favorite] A tablespoon in a quart of water used as a spray will also help keep aphids and whiteflies and other insect pests off of the tomatoes, roses, etc. in your garden, and of course is organic and non-toxic.posted by desuetude at 4:54 PM on September 16, 2008 All the answers so far have concerned the liquid soap - does a