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Tropical Nut Borer
Hypothenemus Obscurus
Danger to:
Most Fruits/Nuts
Pest
Description
Tropical nut borer is one of the most important pests of macadamia production overseas. The borers live and feed beneath the husk making it difficult to spray for them. In heavily infested areas tropical nut borers can damage to up to 60% of a macadamia crop. Up to 190 beetles have been found in a single nut.
Symptoms
Numerous round holes approximately 0.5 mm in diameter on husks; extensive tunnelling through husk and shell visible when nut is cut open; in late stage infestations the entire kernel may be consumed.
Hypothenemus Obscurus
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