茄qie子zi藥yao害hai與yu褐he色se圓yuan星xing病bing症zheng狀zhuang相xiang似si,很hen多duo菜cai農nong容rong易yi把ba二er者zhe弄nong混hun,以yi至zhi於yu藥yao不bu對dui症zheng,錯cuo失shi防fang治zhi時shi機ji,造zao成cheng很hen大da損sun失shi。筆bi者zhe在zai此ci提ti醒xing菜cai農nong要yao注zhu意yi區qu分fen藥yao害hai和he褐he色se圓yuan星xing病bing,並bing及ji時shi防fang治zhi。
藥害 夏(xia)季(ji)由(you)於(yu)害(hai)蟲(chong)危(wei)害(hai)嚴(yan)重(zhong),有(you)些(xie)菜(cai)農(nong)在(zai)用(yong)藥(yao)防(fang)治(zhi)時(shi)盲(mang)目(mu)地(di)縮(suo)短(duan)間(jian)隔(ge)期(qi)和(he)加(jia)大(da)用(yong)藥(yao)量(liang),導(dao)致(zhi)藥(yao)害(hai)發(fa)生(sheng),如(ru)茄(qie)子(zi)葉(ye)片(pian)產(chan)生(sheng)許(xu)多(duo)不(bu)規(gui)則(ze)形(xing)的(de)褐(he)色(se)小(xiao)斑(ban)點(dian),多(duo)數(shu)是(shi)由(you)烯(xi)啶(ding)蟲(chong)胺(an)和(he)炔(que)蟎(man)特(te)藥(yao)劑(ji)引(yin)起(qi)的(de)。針(zhen)對(dui)這(zhe)種(zhong)情(qing)況(kuang),筆(bi)者(zhe)建(jian)議(yi)菜(cai)農(nong)朋(peng)友(you)一(yi)定(ding)要(yao)合(he)理(li)用(yong)藥(yao),嚴(yan)格(ge)按(an)照(zhao)說(shuo)明(ming)書(shu)或(huo)按(an)技(ji)術(shu)人(ren)員(yuan)安(an)排(pai)進(jin)行(xing)農(nong)藥(yao)配(pei)比(bi),並(bing)且(qie)每(mei)次(ci)用(yong)藥(yao)間(jian)隔(ge)期(qi)限(xian)不(bu)少(shao)於(yu)5天。另外,對藥害發生嚴重的可噴施豐收一號、解害靈或碩豐481等來緩解。
褐色圓星病 在茄子生產中褐色圓星病仍有發生。田間發病症狀:葉(ye)片(pian)上(shang)有(you)近(jin)圓(yuan)形(xing)褐(he)色(se)或(huo)紅(hong)褐(he)色(se)的(de)病(bing)斑(ban),病(bing)斑(ban)擴(kuo)展(zhan)後(hou)中(zhong)央(yang)退(tui)為(wei)灰(hui)褐(he)色(se),有(you)時(shi)破(po)裂(lie),邊(bian)緣(yuan)仍(reng)為(wei)褐(he)色(se)或(huo)紅(hong)褐(he)色(se)。當(dang)濕(shi)度(du)大(da)時(shi),病(bing)斑(ban)上(shang)可(ke)見(jian)灰(hui)色(se)黴(mei)層(ceng)。當(dang)危(wei)害(hai)嚴(yan)重(zhong)時(shi),病(bing)斑(ban)連(lian)片(pian),葉(ye)片(pian)易(yi)破(po)碎(sui)或(huo)早(zao)落(luo)。藥(yao)劑(ji)防(fang)治(zhi):建議菜農選擇霜脲錳鋅類藥劑來防治,由於茄子葉片表皮毛多,為增加藥液展著性,可加入0.1%~0.2%的中性洗衣粉或混入27%高脂膜乳劑100~300倍液,但霧滴宜細,以確保噴勻噴足。
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