Dish Soap for Aphids
I have aphids on my roses and want to know the soap to water ratio for mix.
Hardiness Zone: 6a
By herblady2 from IN
July 22, 20120 found this helpful
According to Colorado State University you want a 2% solution of dish soap to water, for example add 4 teaspoons of dish soap to a quart of water. See documentation at http://www.ext.colostate.edu/pubs/insect/05547.html/ for complete article and a chart of dilutions.
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