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Proceedings of the International Plant Propagator's Society

Vol. 34

Title:
DECIDUOUS AZALEA PROPAGATION: AN OVERVIEW OF OLD AND NEW TECHNIQUES.

Authors:
Anna J. Knuttel and Charles Addison

pp: 517-519

Abstract:
Deciduous azaleas with their vibrant flower colors should be an important plant for the landscape. However, there is a negative response to them in the nursery industry because of foliar problems. The most common cultivars, such as ‘Old Gold’, ‘Golddust’, and ‘Orangeade’, are highly susceptible to powdery mildew and from mid-summer on, the foliage of susceptible cultivars begin to look unattractive unless treated every 2 weeks with a fungicide.

There are other cultivars, however, such as ‘Royal Lodge’ and ‘Visco Sepala’. ‘Sunset Boulevard’, ‘Satan’, ‘Crimson Tide’, and ‘Pink Jolly’, that are not affected by powdery mildew and have attractive fall foliage. These plants would be a welcome addition to any garden and be saleable in both spring and fall. Clearly this type of cultivar should be selected for production by the commercial propagator.

To propagate deciduous azaleas by stem cuttings, we made use of a program at Knuttel Nursery that was described by H.C. Nienhuys of Roadview Farm

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