How to Distinguish Attacks by the Black Turpentine Beetle and Dioryctria Amatella on Southern Pines

Carl W. Fatzinger; Gary L. DeBarr

How to Distinguish Attacks by the Black Turpentine Beetle and Dioryctria Amatella on Southern Pines

Informally Refereed

Authors:

Carl W. Fatzinger, Gary L. DeBarr

Year:

1969

Type:

Research Note

Station:

Southern Research Station

Source:

Res. Note SE-101. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station. 4 p.

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Abstract

Trunk attacks by the black turpentine beetle, Dendroctonus terebrans (Oh.), and the larvae of Dioryctria amatella (Hulst) on the southern pines results in a copious flow of pitch. This external pitch mass or pitch tube exhibits characteristics that can be used as symptoms to distinguish between attacks by these two insects.

Citation

Fatzinger, Carl W.; DeBarr, Gary L. 1969. How to Distinguish Attacks by the Black Turpentine Beetle and Dioryctria Amatella on Southern Pines. Res. Note SE-101. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station. 4 p.