Our tree canopy is under threat, and Greenside trees, like those in our neighbouring suburbs are already infested with PSHB. The GRA has undertaken to spread awareness of the extent of this problem, to share important information and to work with all other stakeholders to start finding solutions to this crisis. As a start we need residents to educate themselves about this beetle, and to identify trees that are already infected, both in their own properties and on the pavements.
The polyphagous shot hole borer (pshb) is a type of beetle that is currently infesting over 200 tree species around the country.
This tiny beetle, the size of a sesame seed does not itself kill the tree, rather it is the fungus that accompanies the beetle and grows in the borer tunnel. This fungus impacts the trees vascular system and inhibits the flow of water and nutrients within the tree.
The polyphagous shot hole borer (pshb) is a type of beetle that is currently infesting over 200 tree species around the country. This tiny beetle, the size of a sesame seed does not itself kill the tree, rather it is the fungus that accompanies the beetle and grows in the borer tunnel. This fungus impacts the trees vascular system and inhibits the flow of water and nutrients within the tree. As the beetle is so tiny it is often not seen, therefore it is better to look for signs of infestation. Symptoms vary from species to species.
Important information can be found at :
Johannesburg Urban Forest Alliance JUFA
Forestry and Agricultural Biotechnology Institute FABI
