State one way insect pests in an apple orchard can be controlled without using chemical pesticides

One way of controlling insect pests in an apple orchard without using any chemical pesticides is by using neem oil from the neem tree. The use of the oil interrupts the life cycle of the insect. Also, using compost from wood chips and spraying the roots of the tree with a concoction of horsetail and stinging nettles.