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    Polyphagous Shot Hole Borer:
    Everything You Need To Know!

    What Is The Polyphagous Shot Hole Borer?

    These beetles, also known as Euwallacea fornicatus, are a troublesome species that are able to cause a great deal of trouble to the environment. Furthermore, the beetle has been discovered in Johannesburg and therefore, are considered a great threat to the indigenous trees of South Africa. These beetles are approximately 2mm long and are native to Southeast Asia. Moreover, the polyphagous shot hole borer, or PSHB, is associated with different types of fungi. One of these fungi is called Fusarium euwallacea. The shot hole beetle shares a symbiotic relationship with this fungus, as this fungus is the beetle’s main source of food in addition to it being the main cause associated with the wilting of trees. The other types of fungi are believed to help the beetle’s colonization of newly infected trees.

    Why Should We Be Concerned?

    The PSHB along with its fungus has caused tremendous damage to the trees in the US, specifically California, in addition to regions in the Middle East. Moreover, the beetle has been recently discovered in Sandton, which is Johannesburg’s economic hub. This discovery is particularly concerning because Johannesburg is believed to be one of the world’s largest urban forests with over 10 million trees. Furthermore, judging by the number of trees the beetle has killed in Johannesburg as well as Knysna, this beetle could potentially be one of South Africa’s largest ecological tragedies. In addition, the beetle is currently infesting over 200 tree species from 28 plant families worldwide.

    How does the beetle infest the tree?

    Actually, the beetle itself doesn’t kill the tree; rather it is the fungus that accompanies the beetle. The fungus targets the trees vascular system inhibiting the flow of water and nutrients within the tree.

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      CONTACT DETAILS
      071 527 0432 – Raymond
      082 823 7321 – Johan

      EMAIL
      info@mhsagricare.co.za