Photos from the WFIWC Archives:
Control Methods

For many years, the Fell-Peel-Burn method was used to destroy bark beetle broods such as the western pine beetle in ponderosa pine in California and Oregon. Control work was done in fall and winter before beetle broods would have emerged in the following spring and when fire danger was low. Blacks Mountain Experimental Forest, Lassen Co., California, October 1934. (Furniss & Wickman 1998, Figure 4A and 4B). Photo no. 8427 b,d by K. A. Salmon, from WFIWC archives.
 
Figure 4B. Infested bark was peeled and placed along-side of the tree and burned.

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