STRATEGIC sanitation logging—from the air

STRATEGIC sanitation logging—from the air

A targeted sanitation logging program—including heli-logging—of beetle-infected Douglas fir is underway in the B.C. Interior, and it looks like it’s having an impact on controlling the rate of spread of the beetle.

By Jim Stirling

The thwack of helicopter blades in the cold Cariboo air is becoming a familiar sound to Williams Lake area residents. For the last three winters, a targeted sanitation logging program of stands infected by the Douglas-fir beetle has been underway.

The aerial component is part of a suite of control efforts jointly designed to contain the beetles’ spread around susceptible fir stands on Crown land in the Cariboo-Chilcotin region of south central British Columbia.

Annual survey interpretation indicates the strategies are having an impact and proving effective in helping control the rate of spread of the beetle into new Douglas-fir stands.

The how and where decisions about deploying the varying beetle containment methods can be distilled into a single word: collaboration.

“It’s a very collaborative process and involves lots of people sharing information and viewpoints,” summarized Jennifer Bowman, resource manager for the Cariboo-Chilcotin Natural Resource District of the Ministry of Forests, Lands, Natural Resource Operations and Rural Development based in Williams Lake, B.C.

STRATEGIC sanitation logging—from the airThe catchment area for collaboration includes a wide representation from the regional forest industry. It includes tenure holder representatives, log harvesting contractors, forest health experts and the managers of the community forest.

The Douglas-fir beetle typically focuses its attack on small groups of susceptible trees. The location of these small groups of beetle-infested trees helps indicate what type of treatment method or approach is likely to prove the most effective control. The selective heli-logging of beetle-infected fir trees, for example, is a treatment option for steeper slope sites with regulated access. The treatment method gains traction in areas of high outdoor recreation value—which are common in the greater Williams Lake area—and where there are visual impact issues, explained Bowman. The heli-logging of infected stands help protect adjacent fir stands from the beetles.

Sarver Wood Fibre Ltd., is the forest ministry’s heli-sanitation logging contractor. The firm is owned and operated by the four Sarver brothers and offers a range of logging services from its base in 100 Mile House, B.C.

STRATEGIC sanitation logging—from the airThe Douglas-fir beetle typically focuses its attack on small groups of susceptible trees.

The Douglas fir beetle is endemic to regional forests and the forest ministry has tracked past infestation surges and trends, noted Bowman. The last major Douglas fir beetle outbreak in the Cariboo-Chilcotin Natural Resource District peaked in 2008-9 and affected about 68,550 hectares. Aerial surveys made during the summer of 2018 indicated Douglas fir beetles were affecting about 48,584 hectares in the regional natural resource district.

Whatever is happening on the regional landscape base can influence beetle populations. It sounds contradictory that a landscape ravaged by the worst forest fires in its recorded history during 2017 might have caused the Douglas fir beetle populations to track upwards. But that may well be the case.

“The beetles stick around because the pine trees have become weakened by the forest fires’ intensity,” believes Alex Tranq, senior silvicultural resource technologist with the forests ministry in Williams Lake.

STRATEGIC sanitation logging—from the airThe Williams Lake beetle management unit treatment plan for 2018 included several other initiatives. An interesting one was the application of an anti-aggregate pheromone called methyl cyclolexnone. The substance transmits the message to other Douglas fir beetles that a tree is already fully occupied by beetles. It’s used to help disrupt beetle attacks in vulnerable areas including parks and protected areas, residential properties and old growth management areas.

Trap tree felling is another useful tool in the beetle containment arsenal. It’s used in the spring to attract adult beetles to a prime habitat for disposal. The falling and burning of specific beetle-infested stems is also a control option when others aren’t readily available. Use was also made in 2018 of funnel traps installed in regional log yards.

The Douglas fir beetle populations will dictate future control strategies in the region. “I would hope the heli-logging control program will continue at least through 2020,” said Tranq. “After that we will have to wait and see.” Landscape management is a volatile subject during a warming climate period. It’s also one with worrying implications for the regional forest industry. It’s facing high fibre costs driven by a shrinking working forest land base on which beetle attacks and wildfires play significant roles.

Logging and Sawmilling Journal
May 2019

On the Cover:
From mill loaders to trucks to logging equipment, it will all be featured at the upcoming Canada North Resources Expo, taking place May 24 to 25 in Prince George, B.C. Read all about the show, and who is going to be there, beginning on page 30 of this issue of Logging and Sawmilling Journal, the Official Show Guide (Cover photo of Tolko mill operation by Paul MacDonald).

Strategic sanitation logging—from the air
A targeted sanitation logging program—including heli-logging—of beetle-infected Douglas fir is underway in the B.C. Interior, and it looks like it’s having an impact on controlling the rate of spread of the beetle.

Dam logging!
There is a heckuva large log salvage project going on in B.C., but it’s got nothing to do with beetle salvage or fire-salvage—this kind of salvage involves logging green merchantable timber as part of building the massive $10 billion Site C dam in northeastern B.C.

First Nations bridge building—with wildfire wood
A First Nations-owned company in the B.C. Interior, Cariboo Aboriginal Forest Enterprises, is building bridges—and soon will be building homes—with lumber they’re producing from wood burned in a 2017 wildfire.

Protecting a community (forestry) asset
The Williams Lake Community Forest in the B.C. Interior is working to both manage an expanding Douglas fir beetle infestation and put in place wildfire mitigation strategies to protect and enhance what has become a valued and well-used asset.

Pellet plant delivering polished performance
Bringing new manufacturing plants online can be a challenge, but the Smithers Pellet plant in the B.C. Interior is clicking right along, thanks to a team effort on its start-up in late-2018.

Jack of all trades logger
David Craig is truly a jack of all trades when it comes to equipment and logging, doing everything from timber harvesting to log clean-up at a lake for one of B.C’s largest dams.

Finding their logging niche…
Family-owned C&H Logging has found their logging niche in B.C.’s Fraser Valley, and these days three generations of the Carter Family are carrying on operations, with safety and sustainability top of mind.

The Edge
Included in this edition of The Edge, Canada’s leading publication on research in the forest industry, are stories from Alberta Innovates and Canadian Wood Fibre Centre.

Official Show Guide — Canada North Resources Expo
As the Official Show Guide, Logging and Sawmilling Journal has the full scoop on the Canada North Resources Expo—coming up May 24 to 25 in Prince George, B.C.—from feature editorial to a site map to the full listing of exhibitors at this great resource industry show.

The Last Word
Columnist Jim Stirling asks the question: Will the forest policy review for the B.C. Interior yield a new vision for the forest industry?


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