Free Labor
One thing about farmers is they love free labor. It's tricky getting people to work for free but other animals, like praying mantis', spiders and bees provide crop protection services "for the love of the game", if you will.
I'm grateful for the fleet of arachnids, beetles, wasps, and mantids that provide security services in my vineyard. If I harmed them with sulfur spray or stylet oil I would lose their help and companionship. (Jumping spiders are like the cutest, y'all!)

