花卉病害指花卉在生长过程中受有害生物的侵染和不良环境的影响，在生理上和外部形态上都发生一系列病理变化，致使花卉生长发育不良，观赏价值降低。引起花卉病害的原因有两类。一类是不适宜的环境条件，包括气候条件、土壤条件和环境污染，由此引起的病害称生理性或非侵... Flower disease refers to the flowers in the process of growth by the infestation of pests and adverse environmental impact, both in the physical and external morphology of a series of pathological changes, resulting in poor growth and development of flowers, ornamental value. There are two types of causes of flower disease. One is not suitable for environmental conditions, including climatic conditions, soil conditions and environmental pollution, the resulting disease called physiological or non-invasive ...