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Araucaria heterophylla (synonym A. excelsa) is a species of conifer.As its vernacular name Norfolk Island pine (or Norfolk pine) implies, the tree is endemic to Norfolk Island, an external territory of Australia located in the Pacific Ocean between New Zealand and New Caledonia.
Norfolk Island Pine Plant Basic Info: Common Name: Norfolk Island pine, Norfolk pine, Australian Pine. Botanical Name: Araucaria heterophylla. Plant Family: Araucariaceae. Type of Plant: Tree ...
The diseases symptoms include: damping off and collar rot of seedlings, stem canker, root disease, and, most commonly, shoot blight. These symptoms have caused significant economic loss to nurseries and pine plantations. In a nursery in the north-central United States, losses of 35% have been reported. [1]
It has been introduced into Japan and China, [10] where it has become a troubling disease of Japanese red pines (Pinus densiflora) and black pines (Pinus thunbergii). Over 46 million cubic meters of trees have been lost alone in Japan over a 50-year period. [10] It is spread among conifers by pine sawyer beetles (Monochamus spp). The nematodes ...
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Pine-pine gall rust, also known as western gall rust, is a fungal disease of pine trees. It is caused by Endocronartium harknessii (asexual name is Peridermium harknessii ), an autoecious , endocyclic , rust fungus that grows in the vascular cambium of the host. [ 1 ]