Polyphagous Shot Hole Borer + Fusarium Dieback A New Pest Complex in Southern California

Type: fact sheet

Article abstract: The Polyphagous Shot Hole Borer (PSHB), Euwallacea sp., is an invasive beetle that carries two fungi: Fusarium euwallaceae and Graphium sp. The adult female (A) tunnels galleries into a wide variety of host trees, where it lays its eggs and grows the fungi. The fungi cause a disease called Fusarium Dieback (FD), which interrupts the transport of water and nutrients in over 110 tree species. Once the beetle/fungal complex has killed the host tree, pregnant females fly in search of a new host.

Number of pages: 2

Authors: University of California Agriculture and Natural Resources; University of California, Riverside;

Month: July

Year: 2014

Website: eskalenlab.ucr.edu

Keywords: Box elder; California sycamore; oak woodlands; polyphagous shot hole borer;

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File owner: San Diego Management and Monitoring Program
pshbsymplookalikeslandscape.pdf