Audric Moses has seen a few late-summer wasp outbreaks around his Edmonton home over the past seven years, but nothing like what he saw last week.

香蕉视频直播淢y wife said, 香蕉视频直播楬ey, come on out here. You need to see this,香蕉视频直播櫹憬妒悠抵辈�� he said.

香蕉视频直播淭here were apples in the tree that were completely covered in wasps, inside and outside of the apples. They were just eating their way into the centre, leaving a hollow skin of an apple behind.

香蕉视频直播淭he population of wasps just seems to have exploded in the last week.香蕉视频直播�

Late summer is often wasp time on the Prairies, as the little stingers go through their natural cycle. But this season seems a bit more yellow-and-black than normal.

香蕉视频直播淚香蕉视频直播檝e been hearing a lot from southern and central Alberta that it seems like it香蕉视频直播檚 big wasp season,香蕉视频直播� said University of Alberta entomologist Maya Evenden.

It香蕉视频直播檚 the same to the east, said her colleague Sarah Wood at the University of Saskatchewan.

香蕉视频直播淚 do hear from people who are getting stung in their backyards,香蕉视频直播� she said. 香蕉视频直播淧opulations may be higher this year than average.香蕉视频直播�

Many would agree.

On Friday, kindergarten to Grade 9 students at Edmonton香蕉视频直播檚 Shauna May Seneca School were kept indoors for recess because there were too many wasps in the schoolyard. Restaurant servers in the city have also been warning prospective patio-sitters that they may have fellow diners in yellow jackets.

The City of Edmonton says its pest management team has removed 374 wasp nests so far this year and is in the process of removing more. Last year, it got rid of 121.

While there may be a bit more buzz to this summer香蕉视频直播檚 wasp season, there香蕉视频直播檚 nothing new about the reasons for it. Wasp demographics and food supplies create the same effect every year.

Firstly, said Evenden, wasp colonies have had all summer to nurture their eggs and bring larvae to adulthood. By now, there香蕉视频直播檚 a whole new generation of grown-up wasps thirsty for a sip of the wine in your glass.

香蕉视频直播淭hey香蕉视频直播檝e had that season to build up their colony size,香蕉视频直播� Evenden said. 香蕉视频直播淭here香蕉视频直播檚 more of them from each colony.香蕉视频直播�

Evenden added that unusually hot weather across the Prairies in July may have quickened the growth of the larvae and helped more of them survive.

As well, late summer is when wasp diets shift. Earlier in the summer, wasps are able to feed their young without too much trouble 香蕉视频直播� a balanced diet of flower pollen and the larvae and young of other insects.

But by this point in the season, those prey insects have all grown up and flowers aren香蕉视频直播檛 quite as abundant.

香蕉视频直播淭here香蕉视频直播檚 less nectar available in the environment,香蕉视频直播� said Wood.

香蕉视频直播淭hey need to look for other resources. That香蕉视频直播檚 why they香蕉视频直播檙e after human food as well as honeybees香蕉视频直播� food. There香蕉视频直播檚 just less to go around.香蕉视频直播�

That relative scarcity has another effect that does not go unnoticed.

香蕉视频直播淭hey seem a little bit more aggressive,香蕉视频直播� said Evenden.

Evenden said people should look more kindly on wasps. They香蕉视频直播檙e important plant pollinators and play significant ecosystem roles, even in suburban backyards.

香蕉视频直播淧eople give them a bad rap,香蕉视频直播� she said.

But Moses wishes they香蕉视频直播檇 play that role somewhere else. A wasp trap he set out in his backyard was full of dead bugs in a day.

香蕉视频直播淎ll of the liquid bait was gone,香蕉视频直播� he said. 香蕉视频直播淚t was just wasp bodies.

香蕉视频直播淚t was dangerous. We couldn香蕉视频直播檛 go into some parts of our yard.香蕉视频直播�

The outbreak in his yard may be abating, a little. The next wasp trap took two days to fill.

As the fall weather cools, wasps stop laying eggs and slow down. Eventually, all the wasps in the colony die, except for a few fertilized females that hunker down for the winter to wait for spring.

Then they can begin rebuilding the colony and start the whole cycle over again.