Just checked the cabbages in my raised beds at home which where fine Friday where covered in BIG caterpillars and full of hole's :'( I picked off 64 !!!!
Hope the plants will recover but think the sprouts will struggle >:(
I found some at the weekend also but if they've only got to the outer leaves they should be ok - have another look to see they've not got into the inner sanctum so to speak, 'cos you can always afford to lose a few outer leaves
I was amazed to find the caulies in my polytunnel had big green caterpillars on them yesterday.
The chickens enjoyed them......I'm always pleased with free food sources ;D