jinriyouweicainongzaijiangtianlifaxian,bushaodajiangyepianbianchenglehongse,youxieshenzhishizhengtiaojinggandeyepiandoufahong,xiabulaoyeyanzhong,xiangshangzhubujianqing,zhezhongqingkuangzaijiangtianliyidianzhuangfenbu,tayonglejiciyaozongbujianxiaoguo。
bizhefaxian,chuxianzhezhongqingkuangdedajiang,suiranyepianbianse,danshiyepianhenwanzheng,meiyouchuxianbingban,jingjibuyemeiyoufaxianbingban,erzaikaojindibiaodejingjibufaxianlechongyan,yincidajiangyepianbianhongkenengshihaichongyaoshijingganzaochengde。
通常危害薑莖的害蟲是薑螟,菜農通常稱之為“截蟲子”。薑(jiang)螟(ming)幼(you)蟲(chong)鑽(zuan)入(ru)薑(jiang)莖(jing)中(zhong)咬(yao)食(shi),最(zui)終(zhong)造(zao)成(cheng)莖(jing)稈(gan)空(kong)心(xin),導(dao)致(zhi)水(shui)分(fen)及(ji)養(yang)分(fen)運(yun)輸(shu)受(shou)阻(zu),使(shi)得(de)大(da)薑(jiang)葉(ye)片(pian)變(bian)色(se),最(zui)終(zhong)枯(ku)黃(huang)凋(diao)萎(wei)。薑(jiang)螟(ming)一(yi)旦(dan)大(da)麵(mian)積(ji)為(wei)害(hai),對(dui)大(da)薑(jiang)產(chan)量(liang)影(ying)響(xiang)很(hen)大(da),因(yin)此(ci)當(dang)前(qian)應(ying)重(zhong)點(dian)防(fang)治(zhi)。有(you)的(de)薑(jiang)農(nong)雖(sui)然(ran)使(shi)用(yong)了(le)殺(sha)蟲(chong)劑(ji),但(dan)是(shi)與(yu)殺(sha)菌(jun)劑(ji)混(hun)合(he),隻(zhi)是(shi)噴(pen)灑(sa)於(yu)葉(ye)片(pian)上(shang)麵(mian),中(zhong)下(xia)部(bu)莖(jing)稈(gan)沒(mei)有(you)接(jie)觸(chu)藥(yao)液(ye),因(yin)此(ci)中(zhong)下(xia)部(bu)莖(jing)稈(gan)成(cheng)為(wei)害(hai)蟲(chong)為(wei)害(hai)的(de)重(zhong)點(dian)。筆(bi)者(zhe)建(jian)議(yi)菜(cai)農(nong)單(dan)用(yong)殺(sha)蟲(chong)劑(ji),可(ke)選(xuan)擇(ze)杜(du)邦(bang)康(kang)寬(kuan)(5毫升/袋,對30斤水)混加有機矽助劑,二次稀釋後重點噴灑中下部莖稈,也可與甲維鹽混用同時殺滅成蟲,避免其在大薑上部產卵繁殖。
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