Preventing Japanese Beetles
Last summer I saw that I was beginning to have some trouble with the JB's attacking my roses. I wanted to scream in frustration since I hate using chemicals in my yard, never have used insecticides and really hated the idea of having to start now.
I went in the house trying to think of what to use on them and decided I'd try some dish soap and water mixed together in a spray bottle. Low and behold it worked beautifully! The JB's hate getting their little mouths washed out with soap just as much as I did when I was a kid! The beetles that were on the leaves left fairly quickly after trying to find a non-soapy spot.
I proceeded to spray down all the leaves of the rose bush and kept checking back daily, no new chomps out of my leaves, the blooms were all safe. Rain washes the soap off so I reapplied after each rain fall and heavy dew. My only worry was that the soap might cause some burning of the leaves with sunlight but that never became an issue.
Just wanted to share my bit of luck with you.