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Home Home » GENERA P » Protea » Protea glabra hosting witches' broom
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Protea glabra hosting witches' broom

Protea glabra hosting witches' broom
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  • Protea gaguedi flowerhead
  • Protea gaguedi leaves
  • Protea glabra
  • Protea glabra closed bud
  • Protea glabra early blooming stage
  • Protea glabra flaunting a range of leaf colours
  • Protea glabra flowerhead straight styles and collapsed perianths
  • Protea glabra flowering stages
  • Protea glabra hosting witches' broom
  • Protea glabra in typical habitat
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Image information

Description

Witches’ broom affects proteas, also Protea glabra. It is a plant disease causing a deformity in a woody plant, typically a tree, where the natural structure of the plant is changed. A dense mass of shoots grows from a single point, the resulting structure resembling a broom or a bird's nest.

Witches’ broom has many causes, including fungi, insects, mites, nematodes, phytoplasmas, viruses, mistletoes and dwarf mistletoes (although the broom is not a mistletoe itself). People can cause witches' broom through poor pruning practices.

The broom growth usually lasts for the remainder of the life of the host plant.

This occurrence of the phenomenon was seen in the veld at Kagga Kamma (Rourke, 1980; Manning, 2007; Coates Palgrave, 2002; iNaturalist; Wikipedia).

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613
Photographer
Thabo Maphisa
Author
Ivan Latti
 
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