There’s been a major arrival of diamondback moths (kålmøll) here since yesterday and there are hundreds of this major Brassica pest in the garden today! I am thankfully only growing perennial kales (Brassica oleracea) and resistent sea kale (Crambe maritima) this year, both of which are already close to maximum yield and unlikely to be severely affected by the moth. This also means I don’t need to use any form of protection (horticultural fleece / fiberduk) which is probably a major source of agricultural microplastics. Problem solved!
Sea kale/strandkål (Crambe maritima):
Perennial kales (Brassica oleracea):