here. - Ministry of Forests, Lands and Natural Resource Operations

A lodgepole pine plantation southeast of Ahbau Lake was defoliated by pine needle sheath miner. A total of
175 hectares were affected. The plantation near Garnet Road which was defoliated in 2011, appears to have
recovered, with no new defoliation visible.
Post-Wildfire Mortality
In 2009 and 2010, several large, low-intensity wildfires damaged trees over several thousand hectares. New
mortality, resulting from a combination of fire-damaged roots, stems, and crowns, and both primary and secondary
bark beetles, was mapped in 2012, on 5,485 hectares. Tree species affected were Douglas-fir and lodgepole
pine, and in most cases, mortality rates were moderate to severe. This post-wildfire mortality may continue until
most of the fire-damaged trees in these areas are killed.
Other damage recorded by the aerial surveys were 24 hectares of aspen decline, 212 hectares of flooding damage,
158 hectares of windthrow, and 12 hectares of wildfire.
wI l l I a M S la k e tSa
Bark Beetles
Mountain pine beetle activity was largely confined to the South and West Chilcotin, mainly in the Churn Creek,
upper Taseko River, Chilko Lake, Ottarasko River, and Charlotte Lake areas. Although abundant green pine remains
unattacked in this part of the TSA, most of the remaining red attack is at high elevation, in stands consisting
of small-diameter stems, where reproductive success tends to be low. Attack is quite scattered, with nearly all of
the 13,000 hectares mapped classified as trace or light. An additional 287 spot infestations were recorded.
Declining mountain pine beetle infestations in the Big Creek
drainage, Williams Lake TSA.
Ministry of Forests, Lands and Natural Resource Operations, Kamloops, B.C.
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