Two light applications, two weeks apart, provides greater control. Remove mites with a forceful spray of water. You may also use insecticidal soap. Pesticides are not recommended as they will kill natural predators. Inspect plants for smooth, round, pale green eggs laid singly on leaves, black drippings indicate hornworms are present.
Hand pick frequently.
BT is effective on small larvae. Keep food cleaned up. On plants, they may be attracted by honeydew from aphids. Spray frequently with water to remove aphids. Put tanglefoot on belts around the tree trunks.