Golden Euonymus - Knowledgebase Question

Austin, Te
Avatar for jjones841
Question by jjones841
March 17, 2009
I have three of these bushes and all three seem to contact this white powder disease every year that turns the leaf white which then makes the bush ugly. I have not found a chemical that can get rid of that plant disease. I have even asked folks that work in the Nursery at Home Depot and their advice has not been helpful.

Answer from NGA
March 17, 2009
What you describe sounds like powdery mildew, a fungal disease. It is quite common on all types of shrubs. Try using a homemade baking soda/oil spray: mix 1 tsp. baking soda and 2.5 tsp. summer oil (a lightweight horticultural oil) in 1 gallon of water. Spray this once per week, covering both upper and lower leaf surfaces. A commercial organic alternative is Soap Shield Fungicidal Soap. To avoid, try to provide full sunshine, good air circulation all around the plant, and ample soil moisture. You can remove the leaves affected with powdery mildew so it won't spread to healthy leaves. Good luck with your euonymus!

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