How to Prevent and Control Powdery Mildew
Thanks for the article. I really love fighting bugs in my garden using organic fertilizers which helps me to protect my plants from any insects also preventing my plant from being damaged by chemical fertilizers. excessive use of organic fertilizers and chemicals can deplete the quality and fertility of the soil. That's why I always suggest using organic soil fertilizers in any garden, Thanks for the blog btw
I have a voluntary watermelon that has grown around a cement bench where my grandsons sat and ate watermelon. It has grown huge & I can't even see the bench anymore but a couple days ago I noticed white powdery looking spots on the leaves at the back of the plant and today I saw that it has spread to more of the leaves. What is this and how do I fix it? Please help I really wanted the kids to eat a watermelon from the surprise plant that grew for them. What can I do to save it?
I think you should spray it with lime sulfur for powdery mildew. It's safe to spray on food. Read directions. Maybe try to put something near the root stem to give it a little shade and water if dry. It must get mighty hot in the concrete. Do not we the leaves if possible. I'm no expert, but that's what I would do!
Powdery mildew affects my peonies every year. Fortunately, it has not spread to nearby plantings and it doesn't occur until about a month after bloom. But that ruins the foliage of the peony plant, of course, which is otherwise lovely even without blooms. I use a neem oil spray every couple days and in between, just spray down the entire plant with a moderate pressure shower. This helps to at least reduce the unsightly blight but getting rid of it entirely, let's be honest, probably impossible for anyone. I'm just glad it doesn't affect anything else. Small gifts...
I’ve had this problem too with some of my perennials. So far I have found using the neem oil when they are young helps to keep it away. So try spraying them now, before the mold has a chance. 🙏🏻🤞
I try pruning back to allow more air flow and old milk mixed 1:1 with water. If that doesn’t work an organic spray like Triple Action will also work.
I have found that a mixture of 3% hydrogen peroxide with insecticidal soap works very well at controlling both powdery mildew and insect pests. I buy 27% h2o2 at the local farm supply and dilute it 1 quart to 9 quarts water, and add the insecticidal soap in my backpack sprayer. I spray all my fruit trees at the first hint of the fungus, and this keeps the trees happy for several weeks. I too am in the PNW.