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

Jumbo Valley to be protected, ending decades-long dispute over proposed ski resort

Development rights permanently retired for site of proposed year-round ski resort west of Invermere

FedEx distribution centre coming to Castlegar

Development permit for ground facility before council next week.

Kootenay teams heading for curling provincials

Team Buchy and Team Nichols won the senior playdowns.

Latest winter storm prompts West Kootenay travel warning

20-30 cm of snow expected overnight and into Thursday

PLACE NAMES: Valley of the Ghosts

A ghostly nickname haunts the stretch between Kaslo and New Denver

‘Like an ATM’: World’s first biometric opioid-dispensing machine launches in B.C.

First-of-its-kind dispensing machine unveiled in the Downtown Eastside with hopes of curbing overdose deaths

BC Green Party leader visits northern B.C. pipeline protest site

Adam Olsen calls for better relationship between Canada, British Columbia and First Nations

B.C. society calls out conservation officer after dropping off bear cub covered in ice

Ice can be seen in video matted into emaciated bear cub’s fur

Horgan cancels event in northern B.C. due to security concerns, says Fraser Lake mayor

The premier will still be visiting the city, but the location and day will not be made public

B.C. landlord sentenced to two years in jail for torching his own rental property

Wei Li was convicted of intentionally lighting his rental property on fire in October 2017

PHOTOS: Eastern Newfoundland reeling, search underway for missing man after blizzard

More than 70 centimetres of new snow fell overnight, creating whiteout conditions

Prince Harry, Meghan to give up ‘royal highness’ titles

‘Harry, Meghan and Archie will always be much loved members of my family,’ says Queen Elizabeth II

Calls for dialogue as Coastal GasLink pipeline polarizes some in northern B.C.

Coastal GasLink is building the 670-kilometre pipeline from British Columbia’s northeast to Kitimat on the coast

Closed mills, housing surge support a positive forecast for lumber industries

B.C. lumber producers have closed mills accounting for 18% of province’s capacity, RBC report says

Most Read