Cranbrook mosquito control on the larvae attack

City encouraging home and property owners curb mosquito development by removing sources of standing water from around the home.

Mosquito season is upon us in many places and right around the corner in others, so it’s a good time to find out what Cranbrook is doing in preparation.

The municipality contracts out the job to Morrow BioScience Ltd, a company out of North Vancouver that specializes in mosquito control. Locally, Kendra Lewis is area co-ordinator and technician of the Cranbrook leg of the program.

Lewis said around this time, the biggest thing residents can do to reduce mosquito activity, is clean up yards and gutters. The downpours of late provide the perfect breeding grounds for mosquitos.

Lewis said things like wheelbarrows, water barrels, water dishes that pets aren’t using and ponds that don’t have fish in them are prime places for mosquitos to proliferate.

“Anything that holds water, that’s what people should be looking at in their own yards,” Lewis said, adding that all of the big sites around Cranbrook have been treated a few times now.

“Our sites are clear, it’s just stuff within the city that we need people to work on right now,” she said. “It’s definitely been a bad mosquito year, but we’ve kept on top of it, that’s for sure.”

Lewis said she has killed a lot of larvae already this season, and attributes the high numbers to last year’s high water as well. She noted a lot of egg-laying went on and all of her permanent sites, sometimes seeing 200 larvae per sample dip.

She said they do a lot of work around the community forest, Idle Wild, Echo Fields and at the breakaways around Elizabeth Lake, though not the lake itself.

“We don’t treat Elizabeth Lake, because we don’t have a problem with it,” she said.

“Everywhere that I treated this year has lots (of larvae),” she said.

Mosquito eggs can lay dormant for up to seven years, she said, so with the water fluctuating like it has been, they have done multiple treatments.

Mosquitoes go through four stages of development: egg, larvae, pupa and adult. When eggs come into contact with water during the spring and summer months, they hatch into larvae. The larvae feed on plant material and develop into pupae, which later become adult mosquitoes. After mating, female mosquitoes search for blood to complete the egg development stage. Morrow BioScience Ltd. directs efforts at the larvae stage.

To kill they use a product called Aquabac 200G, a granular mosquito larvicide. It contains a naturally occurring bacterium Bacillus thuringiensis israelensis (Bti) which targets the larvae, but doesn’t harm birds, mammals, amphibians or other insects. The larvicide can be applied by hand, blower or helicopter.

The city also encouraged home and property owners curb mosquito development by removing sources of standing water from around the home. Some suggestions:

• Clogged gutters;

• Flower pot trays;

• Outside pet dishes;

• Kids’ pools, toys;

• Bird baths, feeders;

• Canoes/boats, tires

Just Posted

The Kootenay International Junior Hockey League met for their AGM and announced a number of new initiatives, new awards and changes in their executive committee, as well as the starting date for the 2021-22 season. Paul Rodgers file.
KIJHL announces start dates for 2021-22 season

Season set to begin Oct. 1 with league still following all health guidelines

Calvin Dickson photo.
Severe thunderstorm watch in effect for East Kootenay

Conditions favourable for the development of thunderstorms, hail and heavy rain

The Independent Investigations Office of BC is looking into a Castlegar incident. File photo
Police watchdog investigating Castlegar incident

IIO: Woman sustained a reportedly self-inflicted injury

Mount Baker Secondary School in Cranbrook.
Graduation ceremony in the works for MBSS Class of 2021

The Mount Bake Secondary School Class of 2021 will have a graduation… Continue reading

After being forced to cancel in 2020 due to the pandemic, the Wasa Triathlon is being organized for August. Bulletin file photo.
Information released for Gerick Sports Wasa Triathlon scheduled for August

In 2020 the COVID pandemic forced the Gerick Sports Wasa Triathlon to… Continue reading

Canadian Prime Minister Justin Trudeau participates in a plenary session at the G7 Summit in Carbis Bay, England on Friday June 11, 2021. THE CANADIAN PRESS/Adrian Wyld
Canada donating 13M surplus COVID-19 vaccine doses to poor countries

Trudeau says the government will pay for 87 million shots to be distributed to poor countries

The BC Ferries website went down for a short while Monday morning following a provincial announcement that recreational travel between health authorities can resume Tuesday. (Black Press Media file photo)
BC Ferries’ website crashes in wake of provincial reopening announcement

Website back up now, recreational travel between health regions to resume as of Tuesday

The Kamloops Indian Residential School is photographed using a drone in Kamloops, B.C., Monday, June, 14, 2021. The remains of 215 children were discovered buried near the former school earlier this month. THE CANADIAN PRESS/Jonathan Hayward
Communities grapple with what to do with former residential and day schools

Some tear them down as a tool to help healing, others repurpose them as tools for moving forward

FILE – Provincial health officer Dr. Bonnie Henry talks about B.C.’s plan to restart the province during a press conference at Legislature in Victoria, Tuesday, May 25, 2021. THE CANADIAN PRESS/Chad Hipolito
B.C. officials watching U.K.’s Delta variant struggles, ‘may need to slow’ plan going forward

Studies show that one dose of vaccine is only 33 per cent effective in preventing B.1.617.2 spread

RCMP Const. Shelby Patton is shown in this undated handout photo. RCMP say that Patton was hit by an allegedly stolen truck that he had pulled over on Saturday morning in Wolseley, east of Regina. THE CANADIAN PRESS/HO, RCMP
Pair charged in Saskatchewan Mountie’s death make first court appearance

Const. Shelby Patton was hit by an allegedly stolen truck that he had pulled over Saturday morning

David and Collet Stephan leave for a break during an appeal hearing in Calgary on Thursday, March 9, 2017. THE CANADIAN PRESS/Todd Korol
Appeal Court rejects stay for Alberta couple facing third trial in son’s death

Pair accused in their earlier trials of not seeking medical attention for their son sooner

The auto and the bike: A paean to them both

One becomes an extension of one’s self. The other offers the sensation of flight.

Highway notices like this come down effective June 14. Public health restrictions on non-essential travel and commercial operation have hit local businesses in every corner of B.C. (B.C. government)
Province-wide travel back on in B.C.’s COVID-19 restart plan

Gathering changes include up to 50 people for outdoor events

Calgary Stampeders’ Jerome Messam leaps over a tackle during second half CFL western semifinal football action in Calgary, Sunday, Nov. 15, 2015.THE CANADIAN PRESS/Jeff McIntosh
CFL football will be played this summer in Canada

Governors vote unanimously in favour to start the ‘21 campaign on Aug. 5

Most Read