Land Management Resources

Changes observed in the foliage of trees killed by bark beetles are usually described in terms of stages that have been related to a specific timeframe. The “green attack” stage is the period of time...

A best practice guide brings together state-of-the-art approaches, methods, and data to provide non-experts more detailed information about complex topics. With this guide, our goal is to inform and...

Fine root and ectomycorrhizal root density and biomass were quantified in 2003 and 2004 by sequential soil coring in a 54-year old second-growth stand and 3- and 14-year-old third-growth stands of...

Highlights In 2003, mountain pine beetle infested an area of over 4 million ha within British Columbia. Almost all of this infestation occurred within the pine forests of the Montane Cordillera...

Forests are part of a living system where carbon is continually captured from and emitted to the atmosphere. Calculating the impact of human actions on forest carbon is a complex, but critically...

Forests are part of a living system where carbon is continually captured from and emitted to the atmosphere. Calculating the impact of human actions on forest carbon is a complex, but critically...

Highlights Invasive alien insect and disease species are of increasing concern to the health and economic viability of the forest ecosystems within the ecozone. Brown spruce longhorn beetle, an alien...

Armillaria root rot is the most widespread and destructive root disease of trees in Ontario. The main species found within the province is Armillaria ostoyae [Romagnesi| Kerink (Dumas 1988) which...

Tomentosus root rot is one of three major pathogens discussed in greater detail in The Hidden Enemy (Whitney 1988). This technical note presents a practical summary of this and other publications for...

Over 70 diseases have been found and recorded on black spruce ( Picea mariana [Mill.] B.S.P.) in Ontario (Davis and Myren 1990). They range from vigorous pathogens capable of causing death or serious...