Why should comprehensive management be emphasized in forest pest control?

On the basis of "integrated management of forest diseases and insect pests", the idea of forest health is further put forward, which raises the prevention and control of forest diseases, insects, fires and other disasters to the ideological level of forest health care and further embodies the ecological thought. Forest health means maintaining forest health, restoring forest health, and establishing and developing healthy forests. The ideal healthy forest should be such a forest, and the effects of biological and abiotic factors on the forest (such as pests and diseases, air pollution, forest management measures, timber harvesting, etc.). ) will not threaten the current or future goals of forest resources management. The goal of forest resources management here refers not only to commercial products, but also to various uses and values of forests, including forest entertainment, wildlife protection, wood resources, grazing and water source protection. In a healthy forest, there are not necessarily pests, dead trees and dying trees, but they generally exist at a low level, which is conducive to maintaining the food chain and biodiversity in a healthy forest and maintaining the stability of the forest structure. The impact of human beings on forests is often inevitable, but the impact of a healthy forest on limited human activities should be tolerable or recoverable naturally. The essence of forest health is to make the forest have good self-regulation ability and maintain its system stability, so as to maximize its economic, ecological and social benefits.