Hello All- I have used fels naptha soap dissolved into a weak solution with mouthwash and boiled tobacco to stop a really nasty outbreak of aphids a couple of years ago. I made it a little too strong and it curled some leaves so I never tried it again. My neighbor uses it all the time on his squash and tomatoes with fair success (that's where I got the recipe). Calvin Luke Van Santen wrote: > Erich asked if anyone knew about fels naptha's effect on chile plants. > > Never tried that. Of course, I've been too busy using the fels naptha to get poison ivy oil off my skin. Old family wisdom - if you've been in the poison ivy patch, use fels naptha, not regular soap. Evidently fels naptha soap cuts the oil much better. This has been my experience as well (if the oil is removed in the first couple hours, no breakout). > > So, it seems that fn might do something to the plants since it removes oils so well. > > Luke Van Santen > St. Louis Park, MN