New - Help control aphids (greenfly and blackfly) naturally in apple and other fruit trees by encouraging Earwings. Earwings are a natural predator of aphids and love to eat them, so positioning these Earwig Shelters in your fruit trees will encourage them to stay in your trees all year round helping to keep aphids under-control. These Earwig shelters consit of felt pockets filled with straw, which are attached to the trunks / branches of the the fruit trees. The Earwigs will then use them to create a home they can use through the summer and help protect them through winter. Supplied in a pack of 4 with ties, these shelters are simple to use and maintenance free. Simply tie into the trees with the wire ties provided. Position from mid May onwards. Earwig Shelters come in a pack of 4.