The redbay ambrosia beetle is attracted to volatiles naturally emitted by healthy living trees as well as injured avocado (Persea americana
) and redbay (Persea borbonia
) trees. Please see the fact sheet “Laurel Wilt: A Threat to Redbay, Avocado, and RelatedTrees in Urban and Rural Landscapes”. Ambrosia beetles (there are about 5 native ambrosia beetles which can also spread this disease as well) bore into the sap wood and infect trees with the fungus which clogs the vascular pipelines and causes death.
SANITATION (tree removal and disposal) is highly important to suppress the spread of this disease.
The photos below are from a publication by Dr. Jonathan Crane. See it and more at the Laurel wilt action home page UF|IFAS at: