Grafting of Chamelaucium Cultivars
The genus Chamelaucium consists of a group of medium- to tall-growing shrubs native to the southern and central areas of Western Australia. It is widely cultivated over much of Australia for cut flower production. There is extensive production in southern Queensland and most of the early waxflower exports from Australia emanate from the Toowoomba, Darling Downs, and Lockyer Valley districts of Queensland.
Most Chamelaucium forms are highly susceptible to the soil-borne fungus Phytophthora cinnamomi, or root rot fungus. The poorly drained heavy soils of south Queensland and the intense summer rainfall make the spread of the fungal spores in waxflower plantations very rapid and many waxflower growers experience significant plant losses during each summer growing period. It is not uncommon for south Queensland waxflower growers to suffer losses of 10% of plants per year with cutting-propagated plants. This level of loss makes waxflower plantations uneconomic and profitability
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