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(zai)25℃~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4dianzhongqiandenggaowenganzaodetianqitiaojianxiashiyong,nonghufanyingxiaoguobujia。zhezhuyaoshiyinweihuanjingshidubugousuozhi。rubaijiangjun,zuoweizhenjunshachongji,zhijizhuyaohanbaijianghuobaozi,shiyonghoutongguozhijiejiechuchongti,huozaiyongwushangbeihaichongchiruxiaohuadao,zaishiyidetiaojianxiabaozimengfa,zaichongtineifanzhi,chanshengbaijiangjunsudeng,daozhihaichonghuanmansiwang。siwangchongtishangdejunsihefenshengbaozi,tongguojiechuhuojiezhuyuqiliuyouchuanbozhiqitajiankangchongtishangqinran,congerzaochengliuxing,yinqidalianggetisiwang。luoruturangdebaijiangjunhainengzaiturangzhongyuedong,diernianzaiqinranchongti,jixuqishachongzuoyong,houxiaomingxian。yinci,zuihaoxuanzeyintian、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wu4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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