Fertilize and lime according to the soil test results. Have the soil tested to determine the soil pH and the nutrient content of the soil. However, do not over-fertilize trees and shrubs, as this can lead to increased pest problems. Citrus under drought or nutrient stress are more susceptible to scale and other insect pest infestations, so maintain plant vigor. Maintain good citrus tree health to reduce the chance and severity of scale infestation, and for the trees to better tolerate insect pests already present. To maintain a healthy citrus tree, such as this orange tree ( Citrus x sinensis), one must be observant of insect pests that injure the foliage, twigs, and fruit and treat the pest problem accordingly.īarbara Smith, ©2017 HGIC, Clemson Extension Cultural Control & Prevention of Citrus Pests
