手機版
有些菜農對於各種蔬菜病害，不論是真菌性病害、細菌性病害、病毒性病害還是生理性病害，看見蔬菜葉、果稍有變化就噴施農藥；duiyugezhongshucaichonghai，buguanshiyoumanleiyinqidehaishiyachongyinqide，yebuguansuoyongzhiyaonengbunengjianzhiqichong，zhiyaojianchongjiudayaopensha。zhezhongzuofashibuduide。
其qi實shi，每mei種zhong病bing蟲chong都dou有you獨du特te的de習xi性xing與yu危wei害hai特te點dian，如ru白bai粉fen病bing易yi侵qin害hai瓜gua菜cai幼you嫩nen部bu分fen，黑hei斑ban病bing則ze易yi從cong下xia部bu葉ye片pian開kai始shi浸jin染ran，蟎man類lei多duo集ji結jie於yu葉ye片pian背bei麵mian吸xi取qu蔬shu菜cai汁zhi液ye。大da部bu分fen防fang治zhi病bing蟲chong害hai的de藥yao劑ji，專zhuan一yi性xing特te別bie強qiang，往wang往wang針zhen對dui某mou一yi種zhong或huo某mou一yi類lei病bing原yuan物wu引yin起qi的de病bing害hai或huo蟲chong害hai，對dui其qi他ta病bing害hai或huo蟲chong害hai則ze無wu效xiao。所suo以yi在zai施shi藥yao時shi一yi定ding要yao因yin病bing、因蟲施藥。
gebiecainongjiandaopengshineiyouchonghai，jiuxiangchedixiaomiediao，qishiwanquanmeiyoubiyao。congjingjixuejiaodulaijiang，pengshineidehaichongzhiyaobuchaoguofangzhizhibiaojiubuyinggaifangzhi，fouzeyoukenenghuijiangdichanchutourubi，debuchangshi。
