Hi! I live in Cantabria, northen region of Spain. This year we got an invasion of some kind of butterfly that went through most of our pasture in worm/ larvae form. I heard that if we are lucky and we get some frost they may kill the dormant larvae but is there something that I kind do? I plan to reseed with some pasture mixture to help next spring but was wondering if there are some eco friendly measures to avoid this pest.
Thanks!