“Probably because we’ve had such warm winters, as generally they die off each winter, but if it’s a warm enough winter, the nest just keeps going and we get these monster nests in Auckland.
“Quite large in size, and quite a surprise for the homeowner (as) she found it as well.”
Carpenter said the noise of so many wasps sounded like a Formula One car in the backyard.
He said special tools were required to get rid of a nest that big.
“We actually have a pressure duster… imagine a fire extinguisher on steroids.
“We put the powder in, we charge it up with compressed air, and that allows us to shoot the powder at quite a high rate.”
Two technicians go in from either side in multiple spots, and inject the powder straight into the nest, which is covered off and kills the wasps.
“It does agitate them while we do it, so we did have bit of an angry wasp crowd but it’s all part of the job really,” Carpenter said.
His team was generally required when nests reach a size larger than a tennis ball, with sprays from most hardware stores sufficient for smaller ones.
Carpenter said it is difficult to prevent wasp nests, with bait such as Vespex only effective at certain times of the year, when wasps were feeding on different things.
“Quite often with our wasp control, because it’s reactive, people get in the garden on a nice weekend, find that wasp nest, and at that stage, it’s kind of too late, really.”
There were differences between stumbling on a wasp nest as opposed to a beehive.
“I always describe it as when you get close to a beehive, it’s ‘Hi, how are you?’, when you get close to a wasp next, it’s ‘What do you want?’, so they are a lot more aggressive.”
- RNZ
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