Using Dawn Dish Soap to Treat Roses
Dawn dish soap is frequently used mixed with water to control aphids on many plants including roses. This is a guide about using Dawn dish soap to treat roses.
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What ratio do I use to mix Dawn dishwashing liquid and water to spray rosebushes?
Hardiness Zone: 8a
By B Mattke from Fort Worth, TX
March 19, 20110 found this helpful
What is the reason you want to use Dawn? Is it to control aphids? Or other bugs? I think you use about a tsp. to a gallon of water if it is bugs you want to control. If it is blackspot, you are better off using skim milk.
March 27, 20170 found this helpful
Dish detergent in dilutions about the same as for dish washing serves as a good insecticidal soap. If you want to control blackspot, a broad spectrum anti fungal such as Daconil is best.