Spring weather is still causing trouble for anyone who wants to go outdoors, although insect repellent and antihistamines have to be laughing.
That cool, wet weather was perfect for some of the things we hate most: mosquitoes, biting flies and plants that spread allergenic dust.
In May, temperatures are 2.2 degrees in the long-term average, according to Canada's environment measurements. Central and Eastern Ontario has received rainfall from 25 to 100 percent, as usual in May, adding to the water that is still melting from unusually great spring, so the Earth was saturated and the cool days were hard to dry out.
June is cheaper than 1.2 degrees in average in Ottawa, although it has turned hot in the end. And 111 milimich rainfall continued to average 94mm.
Here's the fallout:
• Mosquitoes use the cool, wet spring. With the land saturated there are small breeding pools scattered everywhere. And even in early July, when the mosquito numbers have declined sharply, the bugs are still in large numbers. Black flies are too bad.
Jeff Skevington, an insect scientist with Canada's agriculture, specializes in all kinds of flies. He noticed that the arrival of hot weather finally hit the mosquitoes – but other flies were behind them.
"Deer flies have not yet pointed and will be bad too," he wrote in an e-mail.
• It is a worse year than usual allergy – first the trees spread spring dust and this month the grass.
Holly Bickerton, a botanist and environmental consultant, said both trees and grasses benefited from a wet spring that had boosted their growth. Linden trees were especially effective in flowering and spreading dust, she said. But now it's grass dust season.
“Most of our allergens are European grasses, so they try in cool, wet conditions. They really grow, ”she said.
"And they produce a lot of dust, that's why they're designed to make seed.
"And so you get the hot, dry conditions that are perfect for the spread" of dust.
Bickerton knows about this from experience. "I'm terrible allergy to grasses and ragged," she said. "It's a curse … botany is a really dumb business for someone who's allergic to grass."
"Ragweed will also be bad with the wet spring," Skevington said. Bickerton said she was still not sure about this. We will find the next month.
Biologist Walter Piper writes: "Due to a late ice-out, a long time of plenty of black fly – and perhaps other reasons we haven't noticed yet – was 2019 a horrendous year for northern Wisconsin breathing." “About 1/4 of our lakes have been produced in 2019; Last year, it was over half. ”
Joy however: The long-term outlook of Canada's environment for the rest of the summer requires at least average temperatures, and perhaps even slightly warmer.
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