輪換(交替)用藥
單一品種農藥會誘發抗藥性,生產中可生物農藥、kangshengsunongyaolunhuanshiyong,keyizuaishengwuzhongqunzhongkangyaoxingzhongqundexingcheng。jiaotiyongyaojiushizaizhiwudemouyishengyuqinei,jiaotishiyongzuoyongjizhiwanquanbutongdenongyao。zheyangzuojinengtigaofangxiao,hainengyanchangmouxieyouliangnongyaodeshiyongnianxian。rushachongjiyoujilinzhiji、擬除蟲菊酯、氨基甲酸酯製劑、有機氮製劑、生物製劑等幾個大類,其作用機製各有不同。同一類製劑中的農藥品種也可以相互換用,但必須了解它們之間是否存在交互抗性。
合理混用
bazuoyongfangshihejizhibutongdeyaojihunheshiyongyekeyijianhuankangyaoxingdechanshengsudu。liruzuowuduijuzhileinongyaochanshengkangyaoxinghou,jiangyoujilinhejuzhileinongyaohunheshiyong,keyizhihaichongdekangyaoxing。dandianzuoyongnongyaoyuduodiandechuantongnongyaohunheshiyong,xiaoguogenghao。xuyaozhuyideshi,hunpeinongyaoyebunengchangqishiyong,wubilunhuanyongyao,fouzetongyanghuiyinqikangyaoxing。
間歇用藥
若(ruo)發(fa)現(xian)某(mou)種(zhong)農(nong)藥(yao)已(yi)經(jing)產(chan)生(sheng)很(hen)大(da)的(de)抗(kang)藥(yao)性(xing),應(ying)間(jian)斷(duan)或(huo)停(ting)止(zhi)使(shi)用(yong)。當(dang)一(yi)種(zhong)藥(yao)劑(ji)已(yi)經(jing)引(yin)發(fa)了(le)抗(kang)藥(yao)性(xing)後(hou),如(ru)果(guo)在(zai)一(yi)段(duan)時(shi)間(jian)內(nei)停(ting)止(zhi)使(shi)用(yong),抗(kang)藥(yao)性(xing)現(xian)象(xiang)有(you)可(ke)能(neng)逐(zhu)漸(jian)減(jian)退(tui)甚(shen)至(zhi)消(xiao)失(shi),比(bi)如(ru)久(jiu)效(xiao)磷(lin)引(yin)起(qi)的(de)抗(kang)藥(yao)性(xing),經(jing)過(guo)若(ruo)幹(gan)年(nian)停(ting)用(yong)後(hou)抗(kang)藥(yao)性(xing)基(ji)本(ben)消(xiao)失(shi)。
科學施藥
藥(yao)劑(ji)在(zai)田(tian)間(jian)使(shi)用(yong)的(de)有(you)效(xiao)劑(ji)量(liang)和(he)沉(chen)積(ji)分(fen)布(bu)均(jun)勻(yun)是(shi)至(zhi)關(guan)重(zhong)要(yao)的(de),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),不(bu)要(yao)輕(qing)易(yi)加(jia)大(da)用(yong)量(liang)和(he)增(zeng)加(jia)用(yong)藥(yao)次(ci)數(shu),從(cong)而(er)以(yi)較(jiao)小(xiao)的(de)用(yong)量(liang)獲(huo)得(de)較(jiao)好(hao)的(de)防(fang)治(zhi)效(xiao)果(guo)。
應用增效劑
增(zeng)效(xiao)劑(ji)能(neng)增(zeng)加(jia)殺(sha)蟲(chong)劑(ji)的(de)生(sheng)物(wu)活(huo)性(xing),提(ti)高(gao)藥(yao)效(xiao)。在(zai)某(mou)些(xie)農(nong)藥(yao)中(zhong)加(jia)入(ru)一(yi)定(ding)量(liang)的(de)增(zeng)效(xiao)劑(ji),是(shi)延(yan)緩(huan)或(huo)克(ke)服(fu)病(bing)蟲(chong)害(hai)產(chan)生(sheng)抗(kang)藥(yao)性(xing)的(de)一(yi)個(ge)非(fei)常(chang)有(you)效(xiao)的(de)途(tu)徑(jing)。注(zhu)意(yi)的(de)是(shi)使(shi)用(yong)的(de)增(zeng)效(xiao)劑(ji)一(yi)定(ding)要(yao)是(shi)正(zheng)宗(zong)純(chun)正(zheng)的(de)增(zeng)效(xiao)劑(ji),不(bu)能(neng)是(shi)添(tian)加(jia)了(le)農(nong)藥(yao)的(de)製(zhi)劑(ji)。比(bi)如(ru)市(shi)場(chang)上(shang)知(zhi)名(ming)度(du)很(hen)高(gao)的(de)害(hai)立(li)平(ping)強(qiang)力(li)農(nong)藥(yao)增(zeng)效(xiao)劑(ji)。
堅持綜合防治方法
病蟲害的發生於土壤、氣候、栽培管理等多種因素相關,采取單一的防治措施特別是化學防治,容易產生抗藥性。可把藥劑防治、生物防治、武力防治等有機結合起來、進行綜合防治,以達到抑製和預防抗藥性的目的。
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