Crustaceans on my blackcurrants

Mary O\’Leary asked 13 years ago

See attached photo of what looks like a small brown crustacean on my wisteria. The branches of my blackcurrents were also covered in these. When picked off, the surface underneath them is slightly white. The inside of the crust is covered in a minute amount of whitish powder.

1 Answers

Gerry Daly Staff answered 6 years ago
That is chestnut scale insect which sucks sap from the stems and can severely weaken woody plants.

Apply a garden insecticide thoroughly.