Macadamia Nutborer
Common NameMacadamia Nutborer
Scientific NameMacadamiaphaga bradleyi
FamilyTortricidae
SubfamilyOlethreutinae
Wingspan (mm)15
Primary Colorsreddish-brown, tan, dark brown
HabitatMacadamia orchards, areas with macadamia trees
Geographic RangeAustralia, Hawaii, South Africa, and other macadamia-growing regions
Host PlantsMacadamia integrifolia, Macadamia tetraphylla
Flight PeriodYear-round in tropical climates, multiple generations
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesEggs are laid on macadamia nuts or husks. Larvae bore into the nuts, feeding on the kernel, and pupation occurs either inside the nut or in the soil.
Identification TipsKey features include the mottled reddish-brown and tan forewings with a distinct dark, often triangular or irregular, spot on the posterior half of the forewing. Its presence in macadamia-growing areas is a strong indicator.
Description
A small, robust moth with mottled reddish-brown forewings interspersed with lighter tan or cream patches, and a prominent dark brown, somewhat triangular spot near the trailing edge.
