Kinnikinnick: Leaf gall Categories: Kinnikinnick Kinnikinnick Diseases Ornamentals Shrubs Last review date: 2026-08-28 01:39 Last edit date: Kinnikinnick leafgall Photo by: R.S. Byther Biology Leaf gall of kinnikinnick is caused by the same fungus which causes leaf and flower gall of azalea. Initially, infected plant parts show a thickening and then gradually become fleshy in […]
Kinnikinnick: Leaf spot Categories: Kinnikinnick Kinnikinnick Diseases Ornamentals Shrubs Last review date: 2026-06-22 10:00 Last edit date: Kinnikinnick leaf spot Photo by: R.S. Byther Biology Leaf spot is a fungal disease. symptoms include development of brown, necrotic spots on leaves. The fungus most likely overwinters on infection leaves and possibly on twigs. The disease is […]
Kinnikinnick: Rust Categories: Kinnikinnick Kinnikinnick Diseases Ornamentals Shrubs Last review date: 2026-06-22 10:21 Last edit date: Rust pustules on underside of serviceberry leaf and on petiole Photo by: R.S. Byther Biology Kinnikinnick rust is a fungal disease of the leaves which requires an alternate host (spruce) to complete its life cycle. Symptoms of rust on […]
Kinnikinnick: Aphid (Manzanita leafgall aphid) Categories: Kinnikinnick Kinnikinnick Insects Ornamentals Shrubs Last review date: 2026-09-29 06:57 Last edit date: Kinnikinnick leafgall aphid Photo by: R.S. Byther Biology The manzanita leafgall aphid feeds on the leaves of kinnikinnick and other manzanita species (Arctostaphylos spp.). The aphids are grayish or greenish in color and prefer new growth. […]