Head to head
Asian Longhorned Beetle vs Japanese Beetle
The Asian longhorned beetle and Japanese beetle are both notorious invasive pests that spread from Asia to new continents, but they attack plants in entirely different ways and have met very different fates in their introduced ranges.
| Asian Longhorned Beetle | Japanese Beetle | |
|---|---|---|
| Scientific name | Anoplophora glabripennis | Popillia japonica |
| Native origin | China and Korea | Japan |
| Target | Bores into and kills healthy hardwood trees | Skeletonises leaves and damages lawns as grubs |
| Appearance | Glossy black with white spots and banded antennae | Metallic green head and thorax with coppery-bronze wing covers |
| Introduction route | Likely wood packaging material | Likely soil around imported nursery plants |
| Response to introduction | Strict quarantines and tree removal | Managed as an established agricultural and turf pest |
| Current status in introduced range | Actively targeted for eradication | Established and still expanding |
| Conservation status | Not Evaluated | Least Concern, increasing |
Asian Longhorned Beetle vs Japanese Beetle: common questions
Which beetle is harder to control once introduced, the Asian longhorned beetle or Japanese beetle?
Both are difficult, but they are managed differently; the Asian longhorned beetle is subject to aggressive quarantines and tree removal aimed at full eradication, while the Japanese beetle is instead managed as an established, ongoing agricultural and turf pest that continues to expand its range.
Do the Asian longhorned beetle and Japanese beetle damage plants the same way?
No, the Asian longhorned beetle's larvae bore into and can kill healthy hardwood trees from within, while the Japanese beetle instead feeds on leaf tissue as an adult, leaving a lace-like skeletonised pattern, and damages lawns as underground grubs.
Where did the Asian longhorned beetle and Japanese beetle originally come from?
The Asian longhorned beetle is native to China and Korea, while the Japanese beetle is native to Japan; both have since been accidentally introduced to new regions where they became significant pests.