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I have read many places to use dishsoap in various home made solutions for gardening. ie bug repellant etc....WHAT IN THE WORLD is it about dishsoap that is good for plants? Anyone know?
- Posts : 2260
Join date : 2010-04-25
Age : 39
Location : Post Falls Idaho and LOVING it
My understanding is that when dish soap, such as Dawn, is mixed with water and sprayed it is an insecticide and benefits the plants by destroying the soft bodies (cell disruption?) of bugs/caterpillars, aphids.
Forum Moderator Certified SFG Teacher
- Posts : 14083
Join date : 2010-03-06
Age : 54
Location : Keene, NH, USA ~ Zone 5a
Although camprn has probably hit the nail on the head, it may also be that dish soap acts as a surfactant - making water "wetter" and thereby also drowning the little buggers - disrupting the surface tension of the water. I may be wrong, but I say it with such authority...
- Posts : 2467
Join date : 2010-05-05
Age : 61
Location : Warner Springs, CA USDA Zone 8a, Sunset Zone 7 (I think)
Just read an article on soapy sprays and it indicates that the soap damages the skin or shell of the insects and causes them to dry up. It also suggested that you add both dish soap and a little oil to your water to help the spray stick on the leaves.
- Posts : 3141
Join date : 2010-06-10
Age : 70
Location : Coastal Oregon, Zone 9a, Heat Zone 2 :(
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