Skip to Main navigation Skip to Left navigation Skip to Main content Skip to Footer

University of Minnesota Extension
www.extension.umn.edu
612-624-1222

Extension > Garden > Diagnose a problem > What's wrong with my plant? > Deciduous > Cotoneaster > Curled or stunted leaves

Print Icon Email Icon Share Icon

Cotoneaster > Leaves > Curled or stunted leaves

1 of 2
  • Image: Codling moth 1
  • Image: Codling moth 2
  • Image: Apple Scab 3

Powdery Mildew
Podosphaera clandestina

  • Patches of white, powdery or felt-like fungal patches on leaf surfaces
  • Leaves and shoots may be puckered or distorted
  • New leaves and shoots may be smaller than normal
  • Powdery white fungal growth may be present on ripened berries
  • Symptoms may develop over a single season, or over several years
  • More information on powdery mildew...
2 of 2
  • Image: Fire Blight 1

Woolly apple aphid
Erisoma lanigerum

  • Feeding causes curled and stunted terminal leaves
  • Adults produce white waxy material and form cottony white colonies
  • Normally feed on new growth, but may be found feeding on new bark near wound sites
  • Produce large amounts of sticky honeydew that is colonized by sooty mold
  • More information on Woolly Apple Aphid...

Don't see what you're looking for?

  • © Regents of the University of Minnesota. All rights reserved.
  • The University of Minnesota is an equal opportunity educator and employer. Privacy