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植物的抗虫性主要表现为受遗传因素控制的遗传抗性和受环境因素控制的生态抗性两个方面。植物的抗性主要由遗传因素决定，但其抗性表达和抗虫幅度又受到环境因子的影响。环境因子可改变植物的生理状态和理化性质，使植物不合适作为某种昆虫的寄主，从而提高了植物的抗性水平。
Plant pest resistance is mainly manifested by genetic control of genetic resistance and environmental factors controlled by the two aspects of ecological resistance. Plant resistance is mainly determined by genetic factors, but its resistance to expression and insect resistance in turn affected by environmental factors. Environmental factors can change the physiological status of plants and physico-chemical properties, making the plant inappropriate as a host of insects, thereby increasing the level of plant resistance.