Cotoneaster /kəˈtoʊniːˈæstər/ is a genus of flowering plants in the rose family, Rosaceae, native to the Palaearctic region (temperate Asia, Europe, north Africa), with a strong concentration of diversity in the genus in the mountains of southwestern China and the Himalayas. They are related to hawthorns (Crataegus), firethorns (Pyracantha), photinias (Photinia), and rowans (Sorbus).
Diseases Affecting Cotoneaster
Fire Blight
Fire blight is a disease caused by the bacterium Erwinia amylovora. Twigs, branches, and leaders on trees and shrubs wilt…
Affected Species:
Botryosphaeria Canker
The fungus Botryosphaeria can cause a branch dieback on many woody ornamentals. Cankers girdle and kill twigs and branches of species such as horsechestnut, redbud, dogwood, beech, walnut, tulip poplar, sweetgum, crabapple, pine, oak, rhododendron, azalea, rose, willow, elm, and yew. Small black fungal fruiting structures which contain fungal spores develop in the canker.
Affected Species:
Insects Affecting Cotoneaster
Southern Red Mite
The female adult is about 0.38 mm long and resembles a small spider.
Affected Species:
Hawthorn Lace Bug
Lace bugs are common pests of a variety of ornamental trees and shrubs.
Affected Species:
Please give us a call if you have any questions about your trees and shrubs or would like to schedule an appointment for us to walk your property.
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