Something else at the broccoli.

Just got back from holiday to find another bug has joined the large cabbage white , lesser cabbage white , and looper caterpillars feasting on the broccoli. They make themselves a silk tent which seems to be protecting them from the wasps.
Diamond back moths.
http://www.ukleps.org/CommNamesAlphabetical.html

On the plus side the hens like `em.