izentrop wrote:DY version http://mielleriedesgraves.over-blog.com ... tique.html
The INRA researchers say it's bullshit, but hey, business is businessContrary to popular belief, the focus on trapping the founders does not provide real solutions in the fight against the expansion and predation of the yellow-legged hornet.
If I understand the principle correctly, all the insects which enter through the cone and can come out through the holes in the grid have been saved. So large insects that venture there are eaten by hornets, as well as bees not fast enough. It's free massacre.
The quantity in the cagot is substantial. Afterwards it will be said that the insects disappear.
Any trap captures indiscriminately .... whether it's this sophisticated thing or an overturned bottle with jam and honey at the bottom or a blue lamp for other insects.
In a sense it's silly it reminds of the so-called nets of fishermen supposed to sort
This does not take away from the problems posed by Asian hornets with regard to bees.
It seems to me that more interesting solutions exist but I am too lazy to search ...