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Keyword: resin

Fire and fuel treatments increase tree resistance to bark beetles

Science Spotlights Posted on: April 10, 2018
The frequency of fire in low-elevation coniferous forests in western North America has greatly declined since the late 1800s. In many areas, this has increased tree density, increased the proportion of shade-tolerant species, reduced resource availability, and increased forest susceptibility to forest insect pests and high-severity wildfire. This study investigated how low-intensity fire affects tree defenses and whether fuel treatments impact resistance to a mountain pine beetle outbreak.

Resin duct characteristics in the wood of fire-scarred North American conifers

Publications Posted on: September 30, 2013
Traumatic resin ducts form in xylem and phloem tissue of conifers in response to abiotic wounding, fungal invasion, and insect attack. Little is known about resin duct characteristics in the wood of fire-scarred trees.