The authority says numbers of the non-native species had "grown significantly" in the summer.
Police say a 22-year-old man suffered serious injuries and his passenger had minor injuries.
Shaun Elliott, 56, told jurors he had a "lawful purpose" to strike the man as he was detained.
Shaun Elliott, 56, denies assault occasioning actual bodily harm outside Buxton Police Station.
Kim van Daalen says healthcare systems "are becoming more strained" due to the heat.
Former officer Shaun Elliott is on trial accused of assault occasioning actual bodily harm.
Anne Haslam, 63, was referred to hospital after she visited her optician with no symptoms.
The county's fire and rescue service is called to half a dozen wildfires within 24 hours.
The sculpture of a female quarry worker is attacked by vandals for a second time.
