On 04/09/2020 14:59, Jim GM4 DHJ ... wrote:
On 04/09/2020 13:14, JohnP wrote:
For how many days can a humble fly annoy me in the room? Will it soon
die?
Where does their energy come from?

we bought a £10 fruit box from a farm and we now have those mini fruit
fly's everywhere.....so much for not buying from supermarkets....


LOL, the same has happened to me. They lasted a few years showing only
in summer.

The same thing happened with small silver moths that appear each summer.
In the first year I was infested. In year one or, two, I eventually
found what I would consider the breeding grounds which was A4 sized,
open top, plastic containers which is part of a set of different types
of printing paper that I store below the worktop. It was layered with
dead moths at the bottom of the paper stack.

I cleaned that, and the other containers and the numbers after 7 years
are down to very few, but, not gone.