LionelB@JimmyB@mas.to
The worst thing is not to notice that they emerged, trapping them in the cage.
Wasp predators also take plenty
JimmyB (he/him)@lionelb@expressional.social yes… I would worry about that for sure. Slightly amazing that any make it at all tbh
LionelB@JimmyB@mas.to
The trick is to have a row of brassicas eaten alive by Large White caterpillars, hoping that birds will find them more tasty.
JimmyB (he/him)@lionelb@expressional.social I’ve got it!!! Exactly that. I left the uneaten spring greens and the garden us full of cabbage whites! So simple a way to add butterflies - should have thought of it years ago
LionelB@JimmyB@mas.to
It is the cicada principle. So many emerge at once that predators can't possibly eat them all.
I suppose the weak point is if you attract vastly more birds than would have been there normally.