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Cotoneaster

Botanical Name Cotoneaster glaucophyllus
Family Rosaceae
Origin N. temperate Old World regions, China, Himalaya

Identification

Arching, spreading, evergreen shrub 1-3 m high. Flowers Oct-Jan. Distinctive bunches of small red berries Feb-Aug. Can be confused with other cotoneasters. Note the blue/green colour on the undersurface of mature Cotoneaster glaucophyllus leaves. Young leaves buff-white underneath.

Habitats

Bluff communities, dry forests and shrublands, forest margins, coastal communities, coastal forest, coastal and inshore islands, open clay or rocky stream banks, forest gaps and open sites on steeplands, slips, mobile slopes, river beds, rocklands, roadsides, quarries, wastelands and exotic plantations. Widespread and common. Other cotoneaster species also should be watched for.

Impact to Biota and Ecosystems

Direct competitor in native shrubland with native shrub species. Can form pure stands. Bird dispersed seed may reach offshore islands. Threat to mainland bluffs, steeplands and rocklands.

Dispersal Routes, Vectors, Infestation Sources

Dispersal routes are primarily roadsides, coastlines, exotic plantations, wastelands and forest margins. Red berries effectively dispersed by birds.

Management

Management  

Physical Control

Will resprout if cut. Seedlings can be hand pulled with difficulty. Chainsaw large plants and treat stump with herbicide.

Disposal  Compost, mulch or bury.
Chemical Control

Spray large plants with Metsulfuron herbicide + Penetrant or cut and treat stump.

Rate - Handgun 35 g Metsulfuron + 100 mls Penetrant/100 litres water. Knapsack 5 g Metsulfuron + 10 mls Penetrant/10 litres water.

Biological Control

Recommended Approach

Small infestations cut and paint stump. Larger infestations spray with Metsulfuron.