Caterpillar control

Hi all. My sprouts all have nets over them to prevent the pesky caterpillar. But i have found hundreds of caterpillars happily munching through rows of my swede tonight!!! I have been squashing by hand for a good hour, but have most likwly missed some! Is there anything you would recommend i could spray them with to get rid?

cheers

Just the leaves. Or whats left of them!! They more like stalks now!!!

Yes, swedes are brassicas and vulnerable... sorry, you know that already  

You can try spraying them with salty water, as that usually works fer me with caterpillars.  

OK sunshine band ill give it a go thanks!! I should of worn gloves whilst squishing the hundreds of caterpillars because my fingers are now stained green and it wont wash off lol!!!!!

You are right, caterpillar juice is a really effective skin dye. 

Lemon juice might shift it though