Caterpillars aaaaagh

Apart from picking the blighters off by hand and squishing them is there any sort of safe spray I could use on my veg please?

They are rampaging through the brassicas at the moment. I covered some of the patch with chicken wire to keep pigeons off and they recovered but now they are under threat again. There are days when I wonder if it's all worthwhile.

This year (like most of you I know) I have been doing battle with slugs, pigeons, black fly, green fly, red fly, and now caterpillars. And that's just the ones I can identify

My newly planted fruit trees are also swamped by fly and some have leaf curl. I spend so much time looking on internet or in books or on here asking for help I'm wondering if it's all just too much hassle.

Sorry just a bad day I guess.
I wonder if it's time to invest in one of those great big cages..........

Snap...net them or lose them, I find