Do spider mites eat hydrangeas?
Spider mites on Hydrangeas
These tiny bugs live underneath leaves of the hydrangeas, where they spin protective silk webs. The webs are the best way to tell if spider mites are the problem. These insects will puncture the plant cells to feed, which damages the leaves.
Can I spray neem oil on hydrangeas?
Spraying a band of neem oil around the base of plants such as hydrangeas and rhododendrons will also assist in controlling slugs, snails and weevils. I have used neem oil successfully to control anthracnose and powdery mildew on dogwoods, lilacs and deciduous azaleas.
What does spider mite damage look like on hydrangeas?
With their sucking mouthparts, they pierce leaf cells to withdraw fluid, creating tiny yellow spots, called stippling, on the leaves. Use a hand lens to inspect the underside of hydrangea leaves for webbing or spider mites and their eggs. Spray water on the pests to knock them off leaves.