Mosquitoes are proving less of a menace in most of the Lower Mainland due to the exceptionally dry summer.

Drought means fewer mosquitoes this summer

Lower Mainland enjoys reprieve from mosquitoes as breeding areas dry up in most of the region

The hot dry spring and summer has helped swat down most of the Lower Mainland’s mosquitoes by denying them their usual prime breeding sites.

SFU mosquitoe biologist Carl Lowenberger said the drought has translated into a nice reprieve from the pests in most areas.

“As a result of the dry spell, we have fewer pots of standing water, therefore nowhere to lay eggs, which equals reduced populations,” he said.

Some mosquitoe species lay eggs on land that must get flooded the next spring to hatch – usually from snowmelt or rivers overflowing their banks.

Because of the drought, this year’s low snowpack and the lack of flooding of lowlands by the Fraser, those species are “doing nothing” this year, Lowenberger said.

But the eggs can survive a couple of years, so those mosquitoes could still emerge next year if conditions are wetter.

Other types of mosquitoes, such as the Culex species, overwinter as adults and can begin breeding immediately in the spring, provided they find water.

“They like dark, dank, dirty conditions,” Lowenberger said, adding they often find a haven in storm drains and dtiches in agricultural areas.

Despite the drought, he’s heard complaints of many mosquitoes in pockets of Delta, Richmond and parts of the Fraser Valley.

Lowenberger suspects some Lower Mainland municipalities are no longer treating storm drains and other breeding grounds as aggressively with bacterial insecticides as concern about West Nile virus waned.

“West Nile is on the back burner now, nobody’s concerned about it, so it seems they might have let that go,” he said. “If they’re coming from the storm drains, they’re probably not being treated.”

 

Just Posted

‘Compassion club’ operator loses bid to have pot-trafficking charges thrown out

Bob Woolsey of Mission argues that laws were not valid at the time of alleged offences

Location eyed for possible collector well

New estimate puts price tag of new water source at $81 million

Police investigate sexual assault of teen girl in Abbotsford

Incident occurred Wednesday night along Oriole Crescent

Bad behaviour to lead to expulsion at Abbotsford council

New rules lay out how a member can be booted from a meeting

More extreme weather beds needed in Mission

Council allocates another $5,000 to help keep people safe, warm and dry

B.C. cougar kitten rescued after mother struck by vehicle

Conservation Officers find home for young kitten found dehydrated and frostbitten near Williams Lake

Ice-cream-eating bear draws controversy

An Alberta Wildlife Park posted a video this week of one of their bears going through a Dairy Queen drive-through

Police arrest pair after ‘high-risk vehicle takedown’

Vancouver police say replica handgun found in alleged suspects’ vehicle

Fernie, RCMP go to court over city log books in fatal ammonia leak probe

Log books center stage in clashing of investigations between the city and RCMP

B.C.’s biggest pot plant planned for Oliver

Co-founder Tony Holler said the 700,000 sq. ft. facility would produce 100,000 kg of pot per year

High-end whisky seized in B.C. bar raids

Raids end in seizures at Victoria, Nanaimo and Vancouver whisky joints

E-cig likely the cause of townhouse fire

Smoke and fire damage but no one was hurt in Chilliwack

Train derails in Northwest B.C.

CN reports no injuries or dangerous goods involved after coal train derailment.

Double-doubles and demonstrations: Employees rally outside Tim Hortons

Protests held in response to Ontario franchise owners cutting employee benefits and breaks

Most Read