Use nettle manure. \- Spider mites suck sap from cucumbers, pumpkins, beans, strawberries, berry bushes, fruit trees and ornamental plants. Strengthen them with liquid manure made from nettles ...

There's a high chance that there's a Nettle patch growing in those spots. Players can also look around the furrows of fields, farmlands, and below big trees to spot Nettle growing in the shade.