種zhong子zi是shi傳chuan播bo煙yan草cao病bing原yuan物wu最zui重zhong要yao的de途tu徑jing之zhi一yi，通tong常chang種zhong子zi病bing害hai包bao括kuo病bing原yuan物wu存cun在zai於yu種zhong子zi表biao麵mian或huo內nei部bu，以yi及ji病bing原yuan體ti或huo潛qian帶dai病bing原yuan體ti的de病bing殘can體ti直zhi接jie或huo間jian接jie混hun雜za於yu種zhong子zi之zhi間jian。主要危害方式：yishiweihaizhongzibenshen，ershizhongchuanbinghai。zhongzidaibinglvdegaodi，juedingyudangnianliangfantianfabingdeqingzhongyijizhongzichulijiagongdetiaojian，zhongchuanbinghaiweihaideqingzhong
，juedingyuzhongzidaibinglvdegaodijidangnianhuanjingtiaojiandeshiyixing。yancaozhongzichuliyujiagongdemudezhiyi
，jiushitongguoyixilieduizhongzidecaozuokongzhihexiaoduchulijianshaoyancaobinghaidefasheng。yinciyancaobinghaidefangzhibixushouxianshuli"健康"種子的概念，抓好種子的處理與加工工作。