誤區一:施shi用yong時shi溫wen度du過guo低di。有you些xie農nong戶hu在zai施shi用yong微wei生sheng物wu活huo體ti農nong藥yao時shi,不bu注zhu意yi環huan境jing因yin素su,不bu選xuan擇ze氣qi溫wen較jiao高gao的de天tian氣qi條tiao件jian下xia施shi用yong,甚shen至zhi在zai冬dong天tian和he早zao春chun寒han冷leng的de天tian氣qi條tiao件jian下xia施shi用yong,故gu沒mei有you達da到dao預yu期qi的de防fang治zhi效xiao果guo。這zhe是shi因yin為wei,生sheng物wu農nong藥yao施shi用yong時shi都dou要yao求qiu較jiao高gao的de溫wen度du。試shi驗yan表biao明ming,在zai25℃~30℃之間,噴施後的微生物活體農藥防治效果要比在 10℃~15℃之間的高出1到2倍。
誤區二:在幹燥的天氣下施用。如晴天上午10點鍾到下午4點dian鍾zhong前qian等deng高gao溫wen幹gan燥zao的de天tian氣qi條tiao件jian下xia施shi用yong,農nong戶hu反fan映ying效xiao果guo不bu佳jia。這zhe主zhu要yao是shi因yin為wei環huan境jing濕shi度du不bu夠gou所suo致zhi。如ru白bai僵jiang菌jun,作zuo為wei真zhen菌jun殺sha蟲chong劑ji,製zhi劑ji主zhu要yao含han白bai僵jiang活huo孢bao子zi,施shi用yong後hou通tong過guo直zhi接jie接jie觸chu蟲chong體ti,或huo在zai用yong物wu上shang被bei害hai蟲chong吃chi入ru消xiao化hua道dao,在zai適shi宜yi的de條tiao件jian下xia孢bao子zi萌meng發fa,在zai蟲chong體ti內nei繁fan殖zhi,產chan生sheng白bai僵jiang菌jun素su等deng,導dao致zhi害hai蟲chong緩huan慢man死si亡wang。死si亡wang蟲chong體ti上shang的de菌jun絲si和he分fen生sheng孢bao子zi,通tong過guo接jie觸chu或huo借jie助zhu於yu氣qi流liu又you傳chuan播bo至zhi其qi它ta健jian康kang蟲chong體ti上shang侵qin染ran,從cong而er造zao成cheng流liu行xing,引yin起qi大da量liang個ge體ti死si亡wang。落luo入ru土tu壤rang的de白bai僵jiang菌jun還hai能neng在zai土tu壤rang中zhong越yue冬dong,第di二er年nian再zai侵qin染ran蟲chong體ti,繼ji續xu起qi殺sha蟲chong作zuo用yong,後hou效xiao明ming顯xian。因yin此ci,最zui好hao選xuan擇ze陰yin天tian、雨後或早晨等濕度大時施用。
誤區三:不避太陽光。沒有避開高溫、強(qiang)太(tai)陽(yang)光(guang)的(de)中(zhong)午(wu)施(shi)用(yong),引(yin)起(qi)藥(yao)效(xiao)下(xia)降(jiang)。微(wei)生(sheng)物(wu)活(huo)體(ti)農(nong)藥(yao),最(zui)怕(pa)強(qiang)太(tai)陽(yang)光(guang)照(zhao)射(she)。太(tai)陽(yang)光(guang)中(zhong)的(de)紫(zi)外(wai)線(xian)對(dui)芽(ya)孢(bao)有(you)著(zhe)致(zhi)命(ming)的(de)殺(sha)傷(shang)作(zuo)用(yong),而(er)且(qie)紫(zi)外(wai)線(xian)的(de)輻(fu)射(she)對(dui)伴(ban)孢(bao)晶(jing)體(ti)還(hai)能(neng)產(chan)生(sheng)變(bian)形(xing)降(jiang)效(xiao)作(zuo)用(yong),因(yin)此(ci)要(yao)選(xuan)擇(ze)在(zai)下(xia)午(wu)4點鍾以後或者陰天使用,效果會大大發揮。
誤區四:使用後遭大雨衝刷。芽孢最怕大暴雨衝刷,因為暴雨會將噴施的菌液衝刷掉。如果噴施後﹙5~6小時後﹚遇yu到dao小xiao雨yu,不bu但dan不bu會hui降jiang低di藥yao效xiao,反fan而er可ke提ti高gao防fang效xiao作zuo用yong,因yin為wei小xiao雨yu對dui芽ya孢bao發fa芽ya大da為wei有you利li,害hai蟲chong一yi旦dan食shi後hou會hui加jia速su其qi死si亡wang。所suo以yi要yao根gen據ju天tian氣qi預yu報bao確que定ding施shi用yong時shi間jian。
誤區五:與yu殺sha菌jun劑ji混hun用yong。如ru塊kuai狀zhuang耳er黴mei菌jun,作zuo為wei一yi種zhong真zhen菌jun殺sha蟲chong劑ji,藥yao效xiao是shi通tong過guo塊kuai狀zhuang耳er黴mei菌jun的de活huo孢bao子zi作zuo用yong來lai實shi現xian的de。施shi用yong後hou活huo孢bao子zi侵qin染ran蚜ya蟲chong並bing致zhi死si,可ke持chi續xu傳chuan染ran,引yin起qi群qun體ti大da量liang死si亡wang。但dan作zuo為wei一yi種zhong活huo體ti真zhen菌jun,如ru果guo與yu殺sha蟲chong劑ji混hun用yong,它ta們men被bei殺sha菌jun劑ji致zhi死si,自zi然ran失shi去qu殺sha蟲chong作zuo用yong。
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