It’s been a bad year for mosquitoes in the Fraser Valley. (Black Press Media files)

It’s been a bad year for mosquitoes in the Fraser Valley. (Black Press Media files)

‘Perfect storm’ led to bad year for mosquitos near Fraser River

High river levels and lots of rain meant many eggs hatched this year

If you want to become an involuntary blood donor this year, go for a walk near the Fraser River, and the mosquitoes will gladly oblige.

It’s one of the worst summers for mosquitoes in years, and multiple episodes of high water on the river is being blamed, having left behind pools and puddles that are prime breeding ground for the insects.

“The mosquitoes are bad in Fort Langley with the extended high water,” said Cheryl MacIntosh, commodore of the Fort Langley Canoe Club.

Although the club has shut down its group activities due to the coronavirus pandemic, individual members are still paddling about alone or in family groups. But getting into the water isn’t that much fun right now, MacIntosh said.

“Preparing the boat, loading and unloading by the water are the difficult times,” she said. “Once on the water and moving they are not as bad, as long as you keep moving.”

Morrow BioScience is running the nuisance mosquito program for Metro Vancouver again this year.

“It’s not been a particularly good year for mosquitoes,” said Shaun Calver, Morrow’s operations manager.

In fact, a combination of a rather damp July and multiple high-water events on the Fraser River have resulted in what he called a “perfect storm” for mosquitoes.

Each rainfall, and especially the high water levels, created conditions for more mosquito eggs to hatch, and more larvae to become blood-sucking adults.

However, the end is near.

“It is tapering off,” Calver said.

The mosquitoes live several weeks in their adult form, depending on the temperature.

“The hotter the weather, the quicker they die off,” he said.

Morrow BioScience applies bacterial larvicide to water bodies to try to cut down on the numbers of the biting insects, as well as monitoring larva levels and conducting public education on mosquito prevention.

The company is finished with its larvae control efforts for the year, barring another unlikely rise in river levels, Calver said.

Local municipalities and Metro Vancouver have long advocated for people to help control mosquitoes by removing unnecessary standing water on their properties, particularly items like old tires, blocked gutters, bird baths, or buckets that can hold stagnant rainwater.

Mosquitoes are most active between dusk and dawn, and are attracted to dark and intense colours. To avoid them, try to wear light coloured clothing, wear long-sleeved shirts and pants, and tightly-woven materials. Mesh “bug jackets” or “bug hats” may be needed during extreme conditions.

Morrow also recommends using an insect repellent containing DEET.

Fort LangleyFraser RiverLangleyMetro VancouverPaddling

Just Posted

Rohan arul-Pragasam, Chilliwack School District’s interim superintendent, has been appointed superintendent of schools effective June 15, 2021. (Chilliwack School District)
Interim position becomes permanent for Rohan Arul-pragasam at Chilliwack School District

Arul-pragasam said he was ‘humbled to continue as a steward’ in new role as superintendent of schools

PlanCultus was adopted in 2017 as a guiding document for Cultus Lake Park. (Cultus Lake Park Board)
More affordable housing options could be coming to Cultus Lake Park

Online survey opened on June 14 to gauge opinion on plaza redevelopment eyed for Village Centre

The Abbotsford International Airshow is back for 2021 with the ‘SkyDrive’ concept.
Abbotsford International Airshow returns for 2021 with ‘SkyDrive’

New format features a drive-in movie type experience, show set for Aug. 6 to 8

A young couple walks through the Othello Tunnels just outside of Hope. (Jessica Peters/Black Press)
Hope’s Othello Tunnels fully open to the public

Geological testing proved the area safe enough to open for the first time in more than a year

Raeya Evie Duncan was the 100th baby born at Chilliwack General Hospital for the month of May. She is seen here with her parents Alysha Williams and Andrew Duncan on June 12, 2021. (Jenna Hauck/ Chilliwack Progress)
Baby boom in Chilliwack as record number of infants born at CGH in May

‘COVID babies are coming out,’ says dad of 100th baby born at Chilliwack General Hospital last month

Maxwell Johnson is seen in Bella Bella, B.C., in an undated photo. The Indigenous man from British Columbia has filed complaints with the B.C. Human Rights Tribunal and the Canadian Human Rights Commission after he and his granddaughter were handcuffed when they tried to open a bank account. THE CANADIAN PRESS/HO-Heiltsuk Nation, Damien Gillis, *MANDATORY CREDIT*
VIDEO: Chiefs join human rights case of Indigenous man handcuffed by police in B.C. bank

Maxwell Johnson said he wants change, not just words, from Vancouver police

Tk’emlups te Secwepemc Chief Rosanne Casimir stands outside the former Kamloops Indian Residential School after speaking to reporters, in Kamloops, B.C., on Friday, June 4, 2021.THE CANADIAN PRESS/Darryl Dyck
Kamloops chief says more unmarked graves will be found across Canada

Chief Rosanne Casimir told a virtual news conference the nation expects to release a report at the end of June

A woman wears a vaccinated sticker after receiving a COVID-19 vaccine at a vaccination clinic run by Vancouver Coastal Health, in Richmond, B.C., Saturday, April 10, 2021. THE CANADIAN PRESS/Jonathan Hayward
B.C. ranks among highest in world in COVID-19 first-dose shots: health officials

More than 76% of eligible people have received their 1st shot

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

A screenshot of the First Peoples Cultural Councils First Peoples’ Map. (First Peoples Cultural Council)
Online resource blends B.C.-Alberta’s Indigenous languages, art and culture

Advisor says initiative supports the urgent need to preserve Indigenous languages

An artists conception of the new terminal building at the Pitt Meadows Regional Airport.
Air travel taking off in B.C., but lack of traffic controllers a sky-high concern

There will be demand for more air traffic controllers: Miller

Canadian Armed Forces experts are on their way to North Vancouver after a local homeowner expressed worry about a military artifact he recently purchased. (Twitter DNV Fire and Rescue)
Military called in to deal with antique ‘shell’ at North Vancouver home

‘The person somehow purchased a bombshell innocently believing it was an out-of-commission military artifact’

Amy Kobelt and Tony Cruz have set their wedding date for February, hoping that more COVID-19 restrictions will have lifted. (The Macleans)
B.C. couples ‘gambling’ on whether COVID rules will let them dance at their wedding

Amy Kobelt and Tony Cruz pushed back their wedding in hopes of being able to celebrate it without the constraints of COVID-19

Most Read