I don't know whether it is the conditions this year or my late planting but I have had several new types of caterpillar this year.
A beautifil green one about two inches long - a great high protein snack for the chooks, but eating the living daylights out of my corn!
And my brassicas are being raped by a whole stack of catepillars that secrete a web. They make cabbage moth grubs look like old friends - these go for ths bits you eat not just the leaves, and take everything! Next planting will have to have netting I think.
So far I am coping by picking off the green ones, applying derris on the brassicas..................and crying a lot!

I think I need to do some research!

Nev