The leaves on my hydrangeas look a little diseased
The leaves on my hydrangeas look diseased, what could be causing it? How can I treat them? I also think I see spider mites. What treatment is best?
Certified GKH Gardening Expert
Try neem oil. It's an effective insecticide and works great on spider mites. As a bonus, it's also a good fungicide. Here is more information: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm