A Douglas-fir tussock moth larva. (THE CANADIAN PRESS/HO-Ministry of Forests, Lands, Natural Resource Operations and Rural Development)

A Douglas-fir tussock moth larva. (THE CANADIAN PRESS/HO-Ministry of Forests, Lands, Natural Resource Operations and Rural Development)

Tussock moth infestation in Cariboo is farthest north ever recorded in B.C.

Moth, which can quickly kill Douglas fir trees, spotted south of Alkali Lake

An insect infestation that has the ability to quickly kill healthy Douglas fir trees is on the move in B.C., and the province says it’s been found farther north than ever before.

A statement from the Ministry of Forests says an infestation of tussock moth has been found in trees in the western Cariboo, just south of the community of Alkali Lake.

The pest, which during a severe infestation can kill a large Douglas fir in just one to two years, is usually found in more southern parts of the province, such as Kamloops and the Okanagan.

Tussock moth caterpillars feed on the needles of the Douglas fir, stripping limbs, which appear scorched as they die, and trees weakened by the moth are more susceptible to beetle attacks.

Hairs on the moth caterpillars can also pose a human health risk because the ministry says the hairs can cause allergic reactions in about 20 per cent of people, producing rashes, watery eyes and sneezing.

In an effort to slow the spread of the moth, the ministry says firewood should not be taken from the Wycotte Flat area south of Alkali Lake.

“Tree limbs are particularly infectious, as they may contain eggs,” the ministry statement says.

READ MORE: Cariboo lakes confirmed clear of invasive mussels after testing

Caterpillars, which can be recognized by two long, black tufts on each side of their head and another at the rear, hatch in late spring and develop into moths from late July to early September.

Female moths lay approximately 200 eggs each, which hatch the following spring and the ministry says outbreaks typically last two to four years.

Ministry officials are assessing the affected area and the statement says a treatment plan will begin when the caterpillars re-emerge next spring.

The Canadian Press

Like us on Facebook and follow us on Twitter

Get local stories you won't find anywhere else right to your inbox.
Sign up here

Just Posted

Mamas for Mamas worked with local roaster Tug 6 to create three special blends. (Mamas for Mamas/Contributed)
Kelowna coffee roaster partners with non-profit for specialty blends

Mamas for Mamas has three specialty blends sold from Tug 6

A TacoTime employee hands a customer their order. (Aaron Hemens/Capital News)
Adiós, Taco Tuesday: Kelowna residents flock to TacoTime on restaurant’s final day

‘We don’t need another Starbucks. We need tacos on Tuesday, with extra hot sauce’

RCMP are searching for Philip Toner, who is a 'person of interest' in the investigation of a suspicious death in Kootenay National Park last week. Photo courtesy BC RCMP.
Man sought in suspicious Kootenay death found in Lake Country

Philip Toner is a person of interest in the death of Brenda Ware

A health-care worker prepares a dose of the Pfizer-BioNTech COVID-19 vaccine at a COVID-19 vaccine clinic in Toronto on Thursday, January 7, 2021. THE CANADIAN PRESS/Nathan Denette
65 new cases of COVID-19 in Interior Health

Overall, B.C. is seeing a decrease in COVID-19 cases

Rutland Senior Secondary School. (Twila Amato/Black Press Media)
Two Rutland schools exposed to COVID-19

Interior Health confirmed exposures at Rutland Senior Secondary and Pearson Road Elementary

Sisters Audrey Cunningham and Donna Erdman, join the Vernon Kalamalka Chorus singing in their cars, tuned into the radio, under the direction of Debbie Parmenter. (Jennifer Smith - Morning Star)
VIDEO: Okanagan choir steers around COVID with ‘carbershop’ twist

Singers find a unique way to practice during pandemic restrictions

Keith MacIntyre - BC Libertarian
Penticton’s Keith MacIntyre new leader of the B.C. Libertarian Party

The Penticton businessman was voted in by members of the party on May 8

A Falkland man will present a 600+ signature petition to the Columbia Shuswap Regional District board Thursday, May 20, opposing dog control in Electoral Area D, which includes Falkland, Silver Creek, Salmon Valley and Ranchero/Deep Creek. (File photo)
600-plus sign Falkland man’s petition against dog control

Similar bylaw rejected by 200 public hearing attendees when topic came up 9 years ago

Thompson Rivers University campus is in Kamloops, B.C. (KTW file photo)
Thompson Rivers the 1st B.C. university to supply free menstrual products

The university will offer the products this September

Fraser Health is using ‘targeted’ vaccination clinics in high-risk areas of the Lower Mainland. (Fraser Health photo)
B.C.’s COVID-19 decrease continues, 515 new cases Tuesday

426 seriously ill people in hospital, up from 415 Monday

Cannabis bought in British Columbia (Ashley Wadhwani/Black Press Media)
Is it time to start thinking about greener ways to package cannabis?

Packaging suppliers are still figuring eco-friendly and affordable packaging options that fit the mandates of Cannabis Regulations

Vernon North Okanagan RCMP reported to 287 mental health calls between Jan. 1, 2021, and May 1. (Black Press files)
‘It’s not the police’s responsibility to deal with mental health calls’: Vernon RCMP

RCMP remind public to take care of mental health and well-being, while better solutions are sought

RCMP. (Black Press File)
Major Crimes called in after two bodies discovered near Penticton

A manhunt involving a police helicopter took place on May 10

The site of Sunfest, Laketown Ranch, will be open for camping this summer. (Citizen file)
Sunfest country music bash won’t be shining on B.C. in 2021

Annual Vancouver Island Festival cancelled due to COVID-19, along with Laketown Shakedown

Most Read