Hostname: page-component-848d4c4894-2xdlg Total loading time: 0 Render date: 2024-06-17T02:41:39.223Z Has data issue: false hasContentIssue false
  • English
  • Français

RESPONSES OF ABIES GRANDIS TO ATTACK BY SCOLYTUS VENTRALIS (COLEOPTERA: SCOLYTIDAE)1

Published online by Cambridge University Press:  31 May 2012

Alan A. Berryman
Alan A. Berryman
Affiliation:
Washington State University, Pullman
Get access Rights & Permissions [Opens in a new window]

Abstract

The reactions of resistant and susceptible Abies grandis to attacks by Scolytus ventralis are described. Resistant reactions were characterized by the production of secondary resin in the cells of the phloem parenchyma and the formation of callus tissue and traumatic resin cavities at the cambium–sapwood interface. S. ventralis exhibited varying degrees of gallery establishment on resistant hosts. Some individuals were repelled by phloem resinosis before reaching the vascular cambium while others were able to construct galleries of varying length before they were repelled by resin flow from the phloem and traumatic cavities. The degree of gallery establishment appeared to be inversely associated with the rapidity of the host’s response. Necrotic resinous lesions developed around the attack and extended vertically to various distances from the attack. Callus tissue, produced at the margins of this lesion, eventually grew over and healed the wound. Vulnerable grand firs were characterized by the lack of resinosis in the phloem parenchyma, and the absence of extensive callus production and traumatic cavity formation.

Type
Articles
Information
The Canadian Entomologist , Volume 101 , Issue 10 , October 1969 , pp. 1033 - 1041
Copyright
Copyright © Entomological Society of Canada 1969

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Ashraf, M., and Berryman, A. A.. 1969. Biology of Scolytus ventralis (Coleoptera: Scolytidae) attacking Abies grandis in Northern Idaho. Melanderi 2: 1–23.Google Scholar
Bannan, M. W. 1936. Vertical resin ducts in the secondary wood of the Abietineae. New Phytol. 35: 11–47.CrossRefGoogle Scholar
Berryman, A. A., and Ashraf, M.. Effects of host resistance on attack behavior and brood survival of Scolytus ventralis in grand fir (Coleoptera: Scolytidae). (In preparation.)Google Scholar
Francke-Grosmann, H. 1963. Some new aspects in forest entomology. A. Rev. Ent. 8: 415–438.CrossRefGoogle Scholar
Lee, A. B. 1950. The Microtomist's Vade-Mecum. Blakiston Co., Philadelphia.Google Scholar
Molnar, A. C. 1965. Pathogenic fungi associated with a bark beetle on alpine fir. Can. J. Bot. 43: 563–570.Google Scholar
Reid, R. W., Whitney, H. S., and Watson, J. A.. 1967. Reactions of lodgepole pine to attack by Dendroctonus ponderosae Hopkins and blue stain fungi. Can. J. Bot. 45: 1115–1126.CrossRefGoogle Scholar
Rudinsky, J. A. 1962. Ecology of Scolytidae. A. Rev. Ent. 7: 327–348.Google Scholar
Stark, R. W. 1965. Recent trends in forest entomology. A. Rev. Ent. 10: 303–324.Google Scholar
Struble, G. R. 1957. The fir engraver, a serious enemy of western true firs. U.S. Dep. Agric., For. Serv. Prod. Res. Rep. 11.Google Scholar
Wright, E. 1935. Trichosporium symbioticum, n. sp., a wood-staining fungus associated with Scolytus ventralis. J. agric. Res. 50: 525–538.Google Scholar