Blackbutt leafminer damage to high value eucalypt species in Northland

Satchell, Dean
February 2007
New Zealand Tree Grower;Feb2007, Vol. 28 Issue 1, p39
The article presents a study which assessed the levels of damage brought by the blackbutt leafminer to Eucalypt trees in Northland, New Zealand. Blackbutt leafminers are moths whose larvae cause leaf mines in a lot of eucalypt plant species. It was first found in Auckland, New Zealand in 1999 and was probably brought by ship containers coming into New Zealand from Australia. Although eucalypt trees are known to recover from pests, how the health of a previously healthy tree's productivity is compromised after repeated damage has to be assessed. The study evaluated the levels of damage over time, and compare levels of damage in different species. The methodology, discussion of results and conclusions of the study are included in the article.


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