Clematis · Climber
Powdery mildew: Improve air circulation, avoid wetting foliage, and apply a suitable fungicide if severe.
Clematis wilt: Cut affected stems well below the visible damage to healthy wood and dispose of debris.
Aphids: Squash by hand, blast off with water, or use insecticidal soap for heavy infestations.
Slugs and snails: Use physical barriers like copper tape or apply slug pellets sparingly around the base.
Vine weevil: Apply biological nematodes to the soil in late summer or use systemic insecticides.