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Colorado Plateau
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Non-pinyon Organisms
Pinyon Needle Scales
Pinyon Reproduction
Sunset Crater
Stem-boring Moths
Susceptible/Resistant Trees

Susceptible vs. Resistant Pinyons


Unifested pinyon / Scale infested pinyon



Susceptible pinyon / Resistant pinyon



Resistant pinyon / Susceptible pinyon



Resistant branch / Susceptible branch



Top half of tree is scale free.
Bottom half is susceptible to scales
.


Heavily infested pinyon


Copyright © Pinyon Ecology Research Group, 2013