Cerambycidae larvae and Limacodidae pupa

Canadian Pest Interceptions on Korean Bonsai Trees

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Name: Cerambycidae larvae and Limacodidae pupa
Taxonomic Position:
Animalia : Arthropoda : Insecta:
Common Names: Asian wood borers and slug caterpillar: Interceptions on Korean Bonsai Trees

On March 28, 2003 the Canadian Food Inspection Agency found severe insect damage on bonsai trees originating in Korea during a routine import inspection. The inspector found evidence of multiple quarantine-significant pests.

Issues of Concern: The movement of pests via bonsai plants is a recognized pathway for the introduction of exotic longhorned beetles. The affected host genera in this interception included Acer, Carpinus and Juniperus. The shipment also contained Rhododendron and Ilex species that appeared to be unaffected. On the Acer and Carpinus plants large tunnels and exit holes similar to those caused by Anoplophora spp. (Cerambycidae) were found. Some of the tunnels contained excelsior and in one case a larval head capsule was recovered. On the Juniperus plants, tunnels resembling those caused by Callidiellum were found. Callidiellum rufipenne (Cerambycidae) is an Asian wood borer frequently intercepted species in wood packaging and dunnage materials. On one of the plants a viable pupa belonging to the family Limacodidae (Lepidoptera) was collected. Larvae of the species in this family are commonly known as slug caterpillars due to their ornamentation. Some species have spines that can produce a painful sting. Limacodid larvae are foliage feeders on a wide variety of deciduous trees and shrubs. Most species overwinter as pupae.

The Ilex and Rhododendron were released to the importer. The Acer, Carpinus and Juniperus were returned to Korea.

Detection Strategies

Source: Canadian Food Inspection Agency, Vancouver, British Columbia.

Related NAPPO Pest Alerts:
Anoplophora chinensis discovered in Japanese Maple Bonsai plants from Korea
Beetles in Dried Bamboo
Multiple Longhorned Beetles and novel pathways of introduction

Warning: The information in this archived item was not confirmed with the appropriate National Plant Protection Organization and is provided solely for informational purposes. Please use this information with caution.