A damaged plant as a result of insufficient living or weather conditions is the chief cause of a large insect pest or pest infestation! A healthy, vital, and properly grown plant has such good immune defenses that fungi and pests have a hard time attacking it
The word pest is, strictly speaking, a human creation. In nature, there seem to be no “critters” or “hazardous” fungi. Every animal and organism has the same natural “mission” in existence. For their metabolic processes, all life forms need a balanced diet. There is an approximate equilibrium between human organisms in a stable delicate environment, also defined as an ecosystem.
If the site conditions are seriously compromised, which may occur as a result of severe storms, this “extraction species” enters the bloodstream, resulting in a mass infestation that even generally healthy plants cannot tolerate.