Two nests are found within days, at the time that hornet queens leave to create new ones.
Two nests were found and destroyed in Guernsey over the past few days.
The first, in a garden in a residential area of St Peter Port, required a road closure around the Gibauderie and this was policed by the Civil Protection volunteers.
The second, in Duveaux Lane in St Sampsons was in a field, and the owner had to remove their horses and ponies to enable the Asian Hornet team get to the nest with a cherry picker.
Francis Russell, who heads up the campaign to find hornet's nests, says destroying them at this time of year is crucial:
"As we approach the end of September and move into October, this work becomes even more critical as this is the time when nests are reaching maturity and gearing up to release as many as 500 new queens.
"If they succeed in leaving the nest, these new queens will hibernate and greatly increase our workload as we will experience an increasing population of hornets the following year."
Six nests have been located and destroyed so far this year.
Guernsey's government sets out five ‘super priorities' over the next three years
Century old water main to replaced in Guernsey's Old Quarter
'Major housing development' near Guernsey Airport granted outline permission
Alderney enjoys a Royal Visit for the 80th Homecoming anniversary
Exhibitors finalised for first Guernsey travel show
WATCH: Last Blue Islands plane leaves Jersey
New woodland for Alderney's 80th Homecoming
Guernsey States 'in talks' with easyJet
