Bud Blast
Seifertia azaleae
Key Features

  • Sparse flowering
  • Blighted bud
  • Buds that look like pin cushions
Fruiting body of bud blast resembles pin cushions
Fruiting body of bud blast resembles pin cushions
Close up showing unique fruiting bodies. Photo by Garrett Taylor.
Close up showing unique fruiting bodies. Photo by Garrett Taylor.
Symptoms

Flower buds turn brown and fail to open in the spring. They are later covered by black fruiting structures that look like pin cushions.

Biology

This disease occurs in the early spring.

Management Recommendations

There are no fungicides labeled to control this problem. Remove the infected buds by hand to reduce fungal inoculum.

Effective Pesticides

Pesticides are neither available nor recommended for managing this disease.