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Discussing all aspect of gardening.
Location: Planet Earth
Latest Activity: 17 hours ago
Joan, ironically enough went out with Rio awhile ago - and my lantana plant has what appears to be powdery mildew on it! Went back online to do further reading. Discovered there a many different fungi that cause it, but all do their best in high humidity and moderate temps - and here I am in the middle of both. Aphids apear to be the major carrier of it as you obviously know. Currently only on one plant and I'm going to spray it to hopefully keep from entire plant.
king, I understand your dismay with the way the USA is going. You take on a real adventure and being young, you probably have the stamina to make such a move. Be sure to keep in touch when you do go and let us know if it is any better in New Zealand. They do have more environmentally friendly policies, as I understand it.
Barbara, very good ideas. I like the vinegar, baking soda and salt idea. That makes life much easier.
Thanks for the recipe for soda fungicide. Yes, powdery mildew is one of the problems. Another is that is persistent is shotgun or artillery fungus. I have it because I have wood chunks for my pathways, so I create my own problem. I don't want a stone or other materials.
Yes, we have an excellent extension agent here attached to the horticulture research at Washington State University. They provide excellent support.
Joan, I found this online. I've never tried it. I'm learning I only need three things in life to live: a bottle of vinegar, a box of baking soda, and a box of salt. Create anything with it. :)
Baking soda makes an inexpensive control for powdery mildew on plants. The baking soda fungicide is mostly effective as a preventative, offering only minimal benefits after your plants have become infected. Weekly spraying of susceptible plants during humid or damp weather can greatly reduce the incidence of powdery mildew in your garden.
To control powdery mildew on plants, mix together:
Do not store unused mixture. While this recipe has been known to be effective, it can burn the leaves of some plants. It is recommended that you water your infected plants well a couple of days before applying this mixture, and don’t apply it in full sun. Try on a small area first, to test the plant’s response before spraying the entire plant.
Some recipes also recommend applying 1 tablespoon of ultralight horticultural oil to the mixture. The oil coats and smothers the fungi. The soap is added to help the mix spread and cling to the leaf surface. Be sure to apply to lower leaf surfaces as well.
Joan, when I have a question about gardening I always first go online and check with what Dr. Jerry Parsons of Texas A&M Extension has to say. The man is the go-to person for growing anything in Texas. Is there an agricultural extension agent in your county in WA? Perhaps they have a website where you can ask the question?
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