15问答网 > 什么是植物病害？判断植物是否发生病害有哪两个标准

什么是植物病害？判断植物是否发生病害有哪两个标准

2025-03-17 02:27:46
推荐回答（1个）
回答1：

植物病害是植物在生物或非生物因子的影响下，发生一系列形态、生理和生化上的病理变化，阻碍了正常生长、发育的进程，从而影响人类经济效益的现象。
判断植物病害的两个衡量标准 (1)病害必须有病理程序; (2)病害必须造成损失。

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