Cheeky caterpillers

My sprouts were starting to resemble fine lace curtains, upon investigating under the leaves I found this bunch of brassica munching monsters on just one plant - the cheek of it how dare they eat my sprouts - I don't even like sprouts (!!) but still - how dare they.





I think that I was lucky I checked them when I did as if had left them over night goodness knows how much the cheeky buggers would have eaten !