由you於yu對dui農nong藥yao的de長chang期qi反fan複fu使shi用yong或huo濫lan用yong，目mu前qian已yi有you多duo種zhong農nong藥yao在zai防fang治zhi植zhi物wu病bing蟲chong害hai時shi出chu現xian藥yao效xiao減jian退tui，甚shen至zhi無wu效xiao的de現xian象xiang。為wei了le減jian小xiao抗kang藥yao性xing的de發fa生sheng

，使shi用yong農nong藥yao時shi應ying注zhu意yi以yi下xia幾ji點dian：

交jiao替ti使shi用yong農nong藥yao。交jiao替ti用yong藥yao就jiu是shi在zai某mou一yi植zhi物wu的de生sheng育yu期qi內nei
，交jiao替ti使shi用yong作zuo用yong機ji製zhi完wan全quan不bu同tong的de農nong藥yao。它ta不bu但dan能neng提ti高gao防fang治zhi效xiao果guo，而er且qie還hai能neng延yan緩huan某mou種zhong優you良liang農nong藥yao品pin種zhong使shi用yong年nian限xian。如ru殺sha蟲chong劑ji有you有you機ji磷lin製zhi劑ji、擬除蟲菊酯製劑、氨基甲酸酯製劑
、有機氯製劑、shengwuzhijijidalei，qizuoyongjizhigeyoubutong。tongyileizhijizhongdenongyaopinzhongyekeyihuxianghuanyong
，danbixuzhamingtamenzhijianshifoucunzaijiaohukangxing。liruyachongduileguochanshenglekangxingyihou
，didiweiyejiubunengyongle，yinweiyachongyehuiduididiweichanshengkangxing。danshikeyixuanyongshamingsong。zaishajunjizhong
，yibanneixishajunjibijiaorongyiyinqikangyaoxing
，rubenbingmizuoleishajunji（多菌靈、托布津等）、抗生素類殺菌劑等。但觸殺性殺菌劑不大容易引起抗藥性，因此是較好的輪換組合。象代森類

、無機硫製劑類、銅製劑類都是較好的輪用品種。

kexuehunyongnongyao。bazuoyongfangshihejizhibutongdeyaojihunheshiyong，yekeyijianhuankangyaoxingdefasheng，erqiehainengjianzhiduozhongbingchonghai，zengqiangyaoxiao，jianshaonongyaoyongliang，jiangdichengben。liruduijuzhinongyaochanshengkangyaoxinghou，jiangyoujilinhejuzhinongyaohunheshiyong
，keduihaichongdekangyaoxingyouyidingdeyizhizuoyong。lingwai，ruruidumeisuyudaisenmengxinhunyong，duojunlingyumiejundanhunyong，doushibijiaochenggongdehunyongfangfa。yidankangyaoxingchuxianyihou，gaiyonghunpeizhijiwangwangyenengzouxiao。buguo，hunheshiyongbixukexueheli，bunengmangmuhunyong。erqieyizhonghunpeinongyaoyebunengchangqidanyidicaiyong，bixulunhuanyongyao，fouzetongyanghuifashengkangyaoxing，erqiehaiyoukenengyinqiyouhaishengwufashengduokangxing，jishengwutiduiduozhongnongyaotongshichanshengkangyaoxing。

農藥的間斷使用或停用。當一種農藥已經引發了抗藥性後，如果在一段時間內停止使用，抗藥性現象有可能逐漸減退甚至消失。

應用增效劑。增效劑能增加農藥的生物活性
，提高藥效。因此，在某些農藥中加入一定量的增效劑，也可延緩或克服抗藥性的發生。

此ci外wai
，藥yao劑ji的de有you效xiao劑ji量liang和he沉chen積ji分fen布bu均jun勻yun性xing對dui防fang治zhi病bing蟲chong害hai也ye至zhi關guan重zhong要yao。所suo以yi
，對dui不bu同tong植zhi物wu和he不bu同tong的de有you害hai生sheng物wu
，還hai應ying選xuan用yong恰qia當dang的de施shi藥yao技ji術shu，使shi藥yao劑ji在zai植zhi物wu上shang的de沉chen積ji分fen布bu均jun勻yun，從cong而er以yi較jiao少shao用yong量liang獲huo得de較jiao好hao的de防fang治zhi效xiao果guo。