New Zealand researchers are using drones and satellites to protect eucalyptus forests from costly pest damage.
New Zealand researchers are pioneering drone and satellite technology to protect the country's expanding eucalyptus plantations from damaging pests.
A team at the University of Canterbury (UC) is using remote sensing tools to monitor over 15,000 hectares of eucalyptus, introduced as a sustainable and chemical-free alternative to treated pine. These trees face a growing threat from leaf-chewing paropsine beetles, which can cause significant canopy damage.
UC PhD candidate Shiva Pariyar, who led the study, said the project uses drone-mounted sensors and satellite imagery to detect early signs of pest infestation and tree stress. This allows land managers to respond quickly, even in remote areas, and reduces reliance on costly ground inspections.
According to UC Associate Professor Steve Pawson, pest-related losses cost the industry up to 10 million NZ dollars annually, with control measures adding another 2.6 million NZ dollars each year.
The research supports New Zealand’s goal to expand eucalyptus plantations to 100,000 hectares by 2050. Pariyar said the technology could offer a scalable model for global sustainable forestry.
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