A Comparison of Radiographic and Bark-Removal Methods for Sampling of Mountain Pine Beetle Populations (Classic Reprint) - Softcover

Amman, Gene D.

 
9781390467055: A Comparison of Radiographic and Bark-Removal Methods for Sampling of Mountain Pine Beetle Populations (Classic Reprint)

Inhaltsangabe

Excerpt from A Comparison of Radiographic and Bark-Removal Methods for Sampling of Mountain Pine Beetle Populations<br/><br/>Unlike larvae of the western and southern pine beetles, mountain pine beetle larvae in the thin bark of lodgepole pine feed and pupate primarily in the phloem layer against the sapwood surface. Consequently, removal of bark samples for radiographing would also expose larvae for direct counting. Therefore, any advantage of using the radiographic method in the field would be in the accuracy and speed of sampling beetles in situ. Radiographic sampling has been shown to give accurate counts of mountain pine beetles in bark and wood slabs of lodgepole pine in the laboratory (amman and Rasmussen 1969)

Die Inhaltsangabe kann sich auf eine andere Ausgabe dieses Titels beziehen.