Mark Edwards of Buzz Off - Bendigo Pest Professionals said his business was being kept unusually busy dealing with the introduced pest.

"There is definitely an influx of Euros," he said.

"I've found that I've been doing a couple different jobs every day."

On Time Pest Control's Anthony McMahon agreed that European wasp numbers had been up this season.

"There have been a lot of Euros around, heaps of them," he said.

"We've had two a week which is a lot."

Quarry Hill resident Jon Darke said it was the second year in a row the wasps had made themselves at home on his property.

"We've got a big old log in the back yard with ferns growing out of it and there were all these wasps buzzing around. We were concerned about it because we've got young kids and we don’t want them being stung," he said.

"We had problems last summer with a wasp nest and we were getting them in the house so we don’t want that to happen this time."

European wasps generally thrive in cool, wet conditions.

Mr McMahon said the weather had also provided the perfect conditions for spiders.

"It’s a heavier year than normal and I think that’s weather related," he said.

"It seems to be ideal conditions for them. All day every day, we do a lot of that work.

"Other years they haven’t been quite as severe."

Mr Edwards said spiders also accounted for a significant proportion of his business but the numbers had been more or less steady for the time of year.

"People are out and about and they see more things than they'd see in the winter time because your inside," he said.

The European wasp is native to Europe and parts of Asia but is considered a pest in Australia.

The insect was first introduced to Tasmania in 1959 and reached the mainland in 1977.

HEATHCOTE residents are being encouraged to watch out for European wasps in their area.

A large number of the wasps have been sighted in Heathcote in recent weeks. 

City of Greater Bendigo environmental acting health and local laws manager Meaghan Walsh said while the wasps were not generally aggressive, they could sting when aggravated and unlike a bee, could sting repeatedly.

“In order to eradicate European wasps, the nest must be located and treated or removed,”  Ms Walsh said.

“If residents locate a wasp nest on their property, special care must be taken in removing  and treating it to avoid getting stung. It is recommended that residents engage a professional pest controller.

Tips to keep wasps away from your garden:

• Keep compost heaps and rubbish bins covered at all times.

• Remove old or damaged fruit from trees, as well as fallen fruit which are especially attractive to wasps.

• Clean up dog bones from the yard.

• Cover or remove pet food when not being eaten by your pets.

• Do not use sprinklers or water your garden during the day.

• Cover bird baths and fish ponds with fine mesh or shade cloth to keep wasps out, or place them away from high activity areas such as paths and barbecues.

• Cover swimming pools with a plastic sheet and remove any wasps before swimming.

• Do not try to remove live wasps with your bare hands.

• Remove ivy from the garden as wasps find it very attractive and frequently nest in stands of ivy.

• Cover all windows with fly screens and use a screen door or hanging plastic strips on all external doorways.