alan_m wrote:

How to make a Greenfly trap

Decide that the garden is a good place to paint an item (a door)

Paint the item a nice shade of snow white

Lean item against the fence to dry in the sun

Check item 15 minutes later to find that approx 100 Geenfly have their
legs struck in the now drying paint! Luckily its not too bad as once
the (undercoat/primer) paint is fully dry the fies could be wiped off
with a damp cloth.


ISTM that there is a precise window for painting doors. Somewhere
between Winter (where it will take on a misty finish if the air gets
damp) and Late Spring/Summer/Autumn (where there are loads of insects
that seem to love paint).