Look out for these leaf spots on your hydrangea plants.
Yourhydrangea’s leaveshave spots on them!
What, oh what can prevent your beloved plant’s imminent demise?
Credit: Steve Bender
Nothing dire is going on.
Something very common is.
How To Get Rid of Fungus on Hydrangeas
Fear not.
This is an easy enough malady to cure.
Pick up any spotty leaves that have fallen and throw them out with the trash.
Do not water your hydrangea with overhead sprinklers.
This spreads the spores just like rainfall does.
Here are a few of them.
Usually, the first sign of this fungus is water-soaked spots on the flowers.
Then, reddish/brown-looking lesions.
Also, be sure to remove any dead, fallen, or damaged flowers and leaves.
If the fungus persists, treat it with fungicides.
You should trim any diseased leaves or flowers as soon as you spot them.
Treat the diseased plant with copper-based fungicide.
Liquid kelp, hydrogen peroxide, and garlic oil are also useful.
When these spots grow, they become more like lesions and begin to kill off the leaves.
How to treat or prevent it:Bacteria is able to enter the plant through openings and wounds.
How to treat or prevent it:This virus is spread by nematodes.
So, double-check you are using soil or a mixture that is nematode-free.
University of Nebraska-Lincoln.Cercospora leaf spot.
NC State Extension.Homeowner’s guide to managing diseases, using fungicides, bactericides, and alternative products.
Cornell University College of Agriculture and Life Sciences.Botrytis blight.
Penn State Extension.Hydrangea diseases.
University of Minnesota Extension.Anthracnose of shade trees.
Michigan State University Extension.Bacterial leaf spot on hydrangea.
University of California Statewide Integrated Pest Management Program.Tomato ringspot.
