Question Author
Ah, there are more this year. From an and article in our local press today.
Steve Moreby an insect expert at The Game and Wildlife Conservation Trust, attributes this summer’s wasp population explosion to a long winter that lead to a “proper spring start.”
“Throughout the winter, the queens are the only wasps left around and they go into a winter-long hibernation,” he said. “They only come out of hibernation once they’re exposed to hot enough weather for them to think that its spring. This can mean that during winters that have some variable weather some wasp queens can be ‘tricked’ into thinking its spring before coming out early and dying in the cold.
“The past winter has been cold without much variation and when the spring got hot it stayed hot, meaning few have been tricked.
“This is why we’re seeing such numbers this summer.”