Images and information in this document were obtained from the following websites.
www.fabinet.up.ac.za/pshb
www.greenpop.org/polyphagous-shot-hole-borer
www.jufa.org.za/pshb.html
www.polyphagous-shot-hole-borer.co.za
www.treesurvey.co.za
www.research.assaf.org.za
www.panafricanfarms.co.za/pshb-fungicidal.html
www.panafricanfarms.co.za/pshb-supplementary-surfactant.html