An infestation of Douglas-fir bark beetles, like the one seen here, has been stopped near Nelson. But a local forest expert says the provincial infestation is growing out of control. File photo

Douglas-fir beetle infestation is a provincial crisis: B.C. expert

Gerald Cordeiro says a local infestation near Nelson is only the start

The infestation of Douglas-fir bark beetles that took over 90 hectares of forest just outside Nelson is a sign of what one local expert calls an impending provincial catastrophe.

Gerald Cordeiro, a forest development manager with Kalesnikoff Lumber, first alerted Nelson city council to the infestation in October 2017. On Monday he returned to say the infestation had been mostly been removed, but the entire region is vulnerable.

“I don’t think it’s an exaggeration to call it a crisis,” said Cordeiro. “It’s not on the scale of the mountain pine beetle, but fir forests are generally not on the scale of pine forests in B.C., or what we used to have as a pine forest.

“We have some really heavily fir-dominated forests [in the Kootenays], especially on our south and west aspects. We’re going to see some pretty devastating effects.”

Cordeiro said a cutting permit was granted by the forest ministry to remove infested trees. Trap trees, which are fallen healthy trees, were also used to attract beetles. Those trees were in turn taken to a mill and destroyed along with the beetles inside.

Although the majority of the infestation was removed, Cordeiro said beetles still likely exist at the Ward Creek and Wee Selous Creek sites because those locations were not accessible.

He also warned the infestation could return to Selous Creek, which serves as a secondary water source for Nelson that is used in the summer to support the main source at Five Mile Creek.

“You have to continually monitor it because the bugs are very mobile, they fly. We could reduce to an endemic population in one area and they could fly in from a neighbouring watershed in a very short period of time.”

Douglas-fir bark beetles kill trees within one to two years, after which the infested wood cannot be salvaged.

A 2018 report by the provincial government found 78,471 hectares of forest infested by the beetle.

Cordeiro pointed to developing infestations on the North Shore and around Kokaneee Creek, and added some beetles have already been found on private properties within city limits.

“I would say it’s almost becoming ubiquitous in the fir forests around Nelson.”

Fire break proposed

As the infestation grows, so too does the possibility of previously green trees becoming more likely to burn.

Cordeiro said Kalesnikoff has begun a planning process in partnership with the Regional District of Central Kootenay that would build an estimated 150-hectare fire break in the Selous Creek area.

“It involves a sort of light touch, selective cut to remove the most flammable, most at-risk, what we would call climate change loser trees, unfortunately,” he said.

“Those being cedar and hemlock that carry that really scary Crown fire. So the idea is to reduce the amounts of those trees, open the canopy up a little bit, [and] promote more broad leaf species and brush.”

Cordeiro added the company will engage in public consultation as part of the planning.

He also said he’s exploring how agroecology, which is the study of how ecological processes can be applied to agricultural production, might be used to find new uses for land undergoing fuel mitigation.

As forests are thinned and canopies opened up, Cordeiro said, the space can still be used to provide for societal needs such as food security.

“I don’t have all the answers right now but I feel the concept is good, that we can get back some other benefits from those forests so we’re not just managing them for timber or aesthetics,” he said.

“We’re going to be managing them for fire hazard so let’s take advantage of whatever opportunity that throws at us.”

Related: Forester’s video animation helps explain Nelson’s wildfire risks



tyler.harper@nelsonstar.com

Like us on Facebook and follow us on Twitter

Just Posted

RCMP urge caution for back to school drivers

Police are asking drivers to slow down and watch for pedestrians

Traffic accident on Highway 1

Hour long backup from Abbotsford to Langley

Chilliwack encouraged to commemorate liberation of Holland

Planning already underway to mark the 75th anniversary of the event

Speth to take oath of office at special school board meeting

Speth is the newest trustee to join Fraser Cascade school district

Sts’ailes invites adults to become engaged in Halq’eméylem with new video series

‘Qw’oqwel te Qw’oqwel’ gives language learners an immersive way to learn Halq’eméylem

Expanded support to help B.C. youth from care attend university still falling short

Inadequate support, limited awareness and eligibility restrictions some of the existing challenges

Ethnic media aim to help maintain boost in voting by new Canadians

Statistics Canada says new Canadians made up about one-fifth of the voting population in 2016

Cross-examination begins for B.C. dad accused of killing young daughters

Andrew Berry is charged in the deaths of six-year-old Chloe and four-year-old Aubrey in 2017

Dog attacked by river otters, Penticton owner says

Marie Fletcher says her dog was pulled underwater by four river otters in the Penticton Channel

BC SPCA overwhelmed with cats, kittens needing homes

Large number of cruelty investigations, plus normal ‘kitten season’ to blame

Memorial to deceased teen stays in place through Labour Day

Hundreds of tributes have been left at the Walnut Grove skate park

Wife charged in husband’s death in Sechelt

Karin Fischer has been charged with second-degree murder in the death of her husband, Max

Most Read