How do you treat brown spots on hydrangea leaves?
Leaf spots To control leaf spot, avoid watering your hydrangeas from overhead, and again, remove and destroy diseased plant parts. If summer rains make the problem worse, try a fungicide such as Immunox (always follow label directions).
What causes brown spots on my hydrangea?
Brown Spots on Hydrangea Leaves In a home landscape, brown spots on the leaves are usually caused by a fungus or bacteria. In most cases, the fungus or bacteria does not threaten the life of the plant, but the spots can be unattractive. These spots usually appear annually toward the end of the summer and fall.
Why are there spots on my hydrangea leaves?
In most cases these leaf spots are indicative of Cercospora leaf spot, a temporary condition caused by the fungus Cercospora hydrangea, which is perhaps the most common disease seen on hydrangeas during the months of July through October.
What does fungus on hydrangeas look like?
Usually, the first sign of this fungus is water-soaked spots on the flowers. Then, reddish/brown-looking lesions. How to treat or prevent it: Since Botrytis Blight thrives in cool, damp conditions, do your best to keep your hydrangeas in low humidity, keep good airflow around them, and space them out properly.
What does anthracnose look like on hydrangeas?
If the spots border a leaf vein, they can develop an angular shape. If conditions are favorable, whole leaves and flower petals can develop large, irregular, dark brown spots that look like blotches.
How do you treat fungus on hydrangea leaves?
How to treat or prevent it: Water at the base of the plant instead of spraying the flowers and leaves. 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.
How do you treat fungal leaf spots on hydrangeas?
What can I spray on hydrangeas for fungus?
If your hydrangeas do get infected, you have several options, including compost tea, hydrogen peroxide, garlic oil, or liquid kelp. You can also apply the fungicides chlorothalonil or thiophanate-methyl.
What is a natural remedy for hydrangea fungus?
How do you treat fungus on hydrangeas?
How do you trim brown spots?
Use sharp scissors to cut away the dead, brown areas. Just follow the leaf’s natural shape. You’ll still have a thin brown line along the cut, but the rest of the leaf will stay green and healthy as your plant moves ahead.
Should you cut off brown parts of leaves?
Should you cut off dying leaves? Yes. Remove brown and dying leaves from your house plants as soon as possible, but only if they’re more than 50 percent damaged. Cutting off these leaves allows the remaining healthy foliage to receive more nutrients and improves the plant’s appearance.