Beetle Probing

Beetle Probing with Torrent

Torrent Silviculture has worked with West Fraser and Tolko mills throughout the interior of British Columbia surveying beetle-infested tree stands. The probing season usually runs from late August until late October, depending on snowpack and site accessibility. Our work volume varies from season to season, depending on provincial demand.

What is Beetle Probing?

Beetle probing is a seasonal occupation in the forestry industry that combines surveying and pest control. It involves assessing trees in a given area that have been infested by the mountain pine beetle or Douglas fir beetle. It is part of the ongoing effort to limit the extent of the beetle infestation in British Columbia.

How It Works

The process begins from the air. Designated aircraft fly over timber stands looking for groups of four or more red-needled or grey trees. GPS points are marked for each of these sites. Beetle probers then travel to these sites via bush roads and on foot.

• A predetermined perimeter circle is set up around each GPS point
• Every pine tree within the circle is inspected for signs of beetle infestation
• Signs include stripped bark, red needles, and "pitch outs" — sap dripped from small holes left as beetles burrow in
• Suspect trees are cut into with a hatchet to determine if larvae are present
• Every infested tree is marked with spray paint and a GPS coordinate
• Infested areas are then felled to mitigate the spread of infestation

Work With Us

Beetle probing is a great fit for planters looking to extend their season past the summer. No prior experience is required — we provide full on-the-job training. The work involves significant hiking in varied terrain, so physical fitness and a comfort with remote bush travel are assets.