6 mosquito facts to equip you as the summer battle rages on - Action News
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6 mosquito facts to equip you as the summer battle rages on

What do mosquitoes eat, besides blood? What attracts them to us? What happens to them in the winter? Here are some answers.

What attracts mosquitoes, what they eat and how they survive the winter

Calgary mosquito facts

8 years ago
Duration 0:35
Everything you didn't want to know about mosquitoes in Alberta, and then some.

The mosquito count might be down this year compared to last, but that doesn't matter when you're itching all over.

For those of you who consider mosquitoes the enemy of your backyard summer barbecue or weekend hiking expedition,take a page out of Chinese military general and philosopherSun Tzu'sbook:

"If you know the enemy and know yourself, you need not fear the result of a hundred battles."

We'll leave the knowing yourself part up to you.As for your enemy?

Here are six things you may or may not have known about the pesky little bloodsuckers.

1. Toothless sugar eaters

Mosquitoes mainly eat sugar, which is found inplant nectar, fruit juiceand other plant secretions.

Only the females drink blood, which provides them with the protein required for egg production.

They don't actually have teeth, but they"bite" with a long, pointedmouthpartcalled a proboscis, whichpierces the skin, finds a capillaryand drawsout blood.

2. Long-distance sniffers

The breath weexhale istypically the first thing that draws a mosquito near.

That's because mosquitoes can smell carbon dioxide from as far as 20 metres away.

"If you have really big lungs, you're going to attract more mosquitoes right off the bat,"said University of Calgary entomologist John Swann.

From roughly 10 metres away, mosquitoes hone in on colour.Darker, vibrant colours are easier for them to see.

At 10 centimetres, the bugsseek out heat and moisture.

3. Thousands of types

Worldwide, there are roughly 3,000 species.

Alberta has about45 kinds of mosquitoes, 20 of which can be found in Calgary at different times throughout the summer.

Most of these are floodwater species, meaning theyoverwinter in the soil as eggs in areas that areprone to seasonal flooding. Thenthey hatch during spring and summer rains.

4. Week-long life cycle

Mosquitoes can run through a lifecycle in as little as sevendays in optimal conditions.

The ideal temperature is between 22 Cand 27C during the day, and roughly 20 at night, said Swann.

Because Calgary's temperatures are currently cooler than that, Swann said it's likely most mosquitoes won't die off that quickly.

5. Some are hibernators

Though they're small, some adultscan last through the winter by hibernating.

Females can find a warm spot to spend the colder months, but as soon as they wake upin the springtime, they need to feed on blood and deposit their eggs.

6. Malaria and Zika, but not HIV

Mosquitoes are known for carrying and spreading harmful diseases among humans, includingmalaria, dengue and more recently Zika.

However, mosquitoes cannot transmit HIV/AIDS.

There is no transfer of blood when a mosquito bites only saliva is injected into the skin.Furthermore, theAIDSviruscannot replicate inside themosquito.

With files from Monty Kruger