A technique to artificially infest beech bark with beech scale, Cryptococcus fagisuga (Lindinger)

David R. Houston

doi:10.2737/NE-RP-507

Treesearch

A technique to artificially infest beech bark with beech scale, Cryptococcus fagisuga (Lindinger)

Informally Refereed

Authors:

David R. Houston

Year:

1982

Type:

Research Paper

Station:

Northern Research Station

DOI:

https://doi.org/10.2737/NE-RP-507

Source:

Res. Pap. NE-507. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 8p.

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Abstract

Beech bark disease is initiated when bark of beech trees (Fagus spp.) is attacked by the beech scale, Cryptococcus fagisuga Lindinger. The effects of the insect predispose tissues to bark cankering fungi of the genus Nectria. Critical studies of insect-fungus-host interactions had been stymied by the inability to artificially infest beech with the initiating agent. This paper describes a technique using covers of polyurethane foam to initiate or enhance the development of local infestations of the beech scale on both seedlings and large trees.

Keywords

Beech bark disease, Fagus grandifolia

Citation

Houston, David R. 1982. A technique to artificially infest beech bark with beech scale, Cryptococcus fagisuga (Lindinger). Res. Pap. NE-507. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 8p.