The great mountain pine beetle outbreak – a global perspective: Diana Six

An entomologist tells the story of how a little beetle has ecologically and economically altered North America’s forests.

Diana Six, Ph.D., is professor of Forest Entomology and Pathology at the University of Montana, and an editor of four scientific journals. Her research focuses on just about every aspect of bark beetles possible from genomics to evolution, from symbiosis with microbes to management. In recent years her work has expanded to include how global change is affecting these ecologically and economically important insects and the forests within which they live. She is an intense lover of nature and the outdoors, likes to lift big weights for fun and is one of the few people in Montana who thinks bark beetles are cute.


  1. C’mon Boys, We all in the timber industry who understand clear-cut science on bark beetles had best be overwhelming this pretty little Berkely educated lady with emails to her on this Al Gore mentored you tube video. These are the kind of folks who are pumping thousands of ill qualified foresters and conservationalists out of college into the forest service. Her email is How many people will stand with me on replying to this professor about this B.S. Unless of course you think that bark beetles are cute.

  2. Jack Mahon says:

    If Forestry Professor Dianna Fix is correct we are in the beginnings of Armageddon.
    I would like to know what University of Montana Forestry Professor Carl Fiedler would say about Professor Fix’ belief that proper management of ponderosa pine and lodgepole pine would not have prevented the total distruction of Rocky Mt. forests by bark beetles.
    Professor Fiedler has managed Montana University’s Lubrecht Foreest for many years. His research there is widely recognized by his peers and by the U.S. Congress.
    Professor Fiedler has found that it takes commercial logging to economically manage tree spacing and tree age class distribution to accomplish the maximum health and maximum resistence of the forest
    to destruction from insects and wildfire. He has also found and publicly stated that one must remove some of the large, oldest trees along with some of the younger trees in order to achieve maximum health and resistence to forest mortality.
    Finally I am aware of areas in the Northern Rockies where mature lodgepole pine sawtimber forests had been thinned in the 1970s and 1980’s, the result being foressts that have resisted total destruction by the year 2000 to year 2013 mountain pine bark beetle epidemic.

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