Environmental Entomology (1994) 23, 76-79

Ei'ichi Shibata, Yoshiaki Waguchi and Yoshihiro Yoneda (1994)
Role of tree diameter in the damage caused by the sugi bark borer (Coleoptera: Cerambycidae) to the Japanese cedar, Cryptomeria japonica
Environmental Entomology 23 (1), 76-79
Abstract: To understand the damage of the sugi bark borer, Semanotus japonicus Lacordaire, to larger Japanese cedars, Cryptomeria japonica D. Don., we inoculated living cedar trees of different sizes with hatched larvae. We also studied the oviposition preference of adult borers to logs of different sizes. Almost all larvae inoculated into larger trees were killed by resin flow between the outer and inner bark; however, in smaller trees, about half of the larvae survived. In the oviposition preference test, female adults tended to attack logs with larger diameters. This suggests that despite the high mortality of the young larvae in the larger cedar trees, adults prefer large diameter trees because the rougher trunk surface presents more suitable hiding and oviposition sites. Bark roughness was considered to determine the occurrence of damage from the sugi bark borer.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)

Research topic(s) for pests/diseases/weeds:
damage/losses/economics
resistance/tolerance/defence of host

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Semanotus japonicus	Cryptomeria japonica	Japan