youyudongjipengneidiwengaoshi，fashengbinghaihounanyufangzhi，yushihenduocainongjiujiadayaojideshiyongnongdu
，laizengqiangfangbingxiaoguo。tamenrenwei，yongyaonongduyuedazhibingxiaoguoyuehao，youqishizaibinghaigaofaqi
，gengshichengbeijiadayongyaonongdu。

實shi踐jian證zheng明ming，加jia大da藥yao劑ji濃nong度du是shi可ke以yi提ti高gao防fang病bing效xiao果guo，但dan其qi產chan生sheng的de副fu作zuo用yong卻que不bu容rong忽hu視shi。如ru可ke以yi使shi病bing原yuan菌jun的de抗kang性xing產chan生sheng更geng快kuai，加jia重zhong了le以yi後hou防fang治zhi病bing害hai的de難nan度du
；yerongyifashengyaohai，yingxianglezuowudezhengchangshengchang。suoyi
，cainongjintongguozengjiayaojideshiyonglianglaijinxingbingchonghaifangzhishibukequde。yaofangzhibingchonghai
，yinggaiduozhongfangfabingyong
、綜合防治才行。

首先是增強植株抗性。隨著蔬菜植株坐果越來越多，植株體內有機、無機營養缺乏，抗病能力降低，遇到陰雨天時棚內氣溫

、地di溫wen降jiang低di，根gen係xi生sheng長chang受shou阻zu

，植zhi株zhu生sheng長chang變bian弱ruo
，抗kang病bing性xing降jiang低di，容rong易yi受shou病bing害hai侵qin染ran。所suo以yi要yao注zhu意yi培pei育yu壯zhuang棵ke
，不bu能neng留liu果guo過guo多duo
，導dao致zhi植zhi株zhu出chu現xian營ying養yang供gong應ying不bu足zu而er脫tuo肥fei早zao衰shuai。

其qi次ci是shi創chuang造zao良liang好hao的de棚peng室shi環huan境jing。任ren何he病bing害hai都dou有you其qi適shi宜yi的de發fa病bing環huan境jing，隻zhi有you環huan境jing適shi宜yi，病bing害hai才cai可ke能neng暴bao發fa，如ru灰hui黴mei病bing在zai低di溫wen高gao濕shi的de季ji節jie發fa病bing重zhong，故gu冬dong季ji連lian陰yin天tian後hou常chang表biao現xian為wei暴bao發fa。因yin此ci，防fang治zhi病bing害hai先xian要yao調tiao控kong好hao棚peng室shi環huan境jing

，菜cai農nong可ke采cai取qu各ge項xiang措cuo施shi，避bi免mian棚peng內nei空kong氣qi濕shi度du長chang時shi間jian高gao於yu80%，減少病害侵染機會。同時，及時清除棚內的老葉、病葉
，減少病原物，防止病害的侵染。

zaicishijiaotiyongyao。yizhongnongyaoshiyongdecishuyueduo
，youqishilianxuyongyaoshi
，bingjunchanshengkangyaoxingdejilvyueda。henduonongyaozhonglei，suirankaishishiyongshixiaoguohenhao
，danlianxuyonglemeiyoujici
，xiaoguojiudadazhekou
，birujiashuanglingdeng。suoyi，cainongyingzuodaojiaotiyongyao，fangzhibingjunhenkuaichanshengkangyaoxing。rufangzhihuangguashuangmeibingshi，keyijiangshuangmeiweiyansuanyanyujiashuanglingmengxin、烯酰嗎啉等交替使用。