Casuarina butt rot (195)
Pacific Pests, Pathogens and Weeds
- Worldwide distribution. Temperate, sub-tropical and tropical. An important disease.
- On Casuarina and many broadleaf and fir trees, causing rots in the heartwood of roots, butts, stems.
- Difficult to detect: yellowing, slower growth, dieback, death. Trees become susceptible to be blowing over in the wind.
- Fruit body grey-brown, up to 50 cm, uneven with rings, on dead or living trees, white below with pores.
- Spread by root-to-root contact and/or spore infections.
- Cultural control. There is no control. Once a tree is infected it will die. When brackets are first seen, it is best to remove the tree to prevent infection of those nearby. Avoid wounding trees.
- Chemical control: none recommended.
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