番(fan)茄(qie)感(gan)染(ran)黃(huang)化(hua)曲(qu)葉(ye)病(bing)毒(du)病(bing)後(hou)突(tu)出(chu)症(zheng)狀(zhuang)為(wei)生(sheng)長(chang)點(dian)黃(huang)化(hua),植(zhi)株(zhu)明(ming)顯(xian)矮(ai)化(hua),葉(ye)片(pian)變(bian)小(xiao)並(bing)向(xiang)上(shang)卷(juan)曲(qu),葉(ye)片(pian)邊(bian)緣(yuan)變(bian)黃(huang),坐(zuo)果(guo)期(qi)影(ying)響(xiang)坐(zuo)果(guo)及(ji)果(guo)實(shi)膨(peng)大(da)和(he)轉(zhuan)色(se),嚴(yan)重(zhong)時(shi)會(hui)造(zao)成(cheng)絕(jue)收(shou)。近(jin)兩(liang)年(nian)來(lai)黃(huang)化(hua)曲(qu)葉(ye)病(bing)毒(du)病(bing)在(zai)我(wo)省(sheng)發(fa)生(sheng)嚴(yan)重(zhong),成(cheng)為(wei)越(yue)夏(xia)和(he)秋(qiu)延(yan)後(hou)茬(cha)口(kou)番(fan)茄(qie)最(zui)主(zhu)要(yao)的(de)病(bing)害(hai)之(zhi)一(yi)。
在目前的研究水平下,番茄感染黃化曲葉病毒病後很難治療,因此,應對黃化曲葉病毒病最主要的是做好預防工作。白粉虱、蚜ya蟲chong等deng媒mei介jie昆kun蟲chong是shi黃huang化hua曲qu葉ye病bing毒du病bing最zui主zhu要yao的de傳chuan播bo途tu徑jing,所suo以yi做zuo好hao白bai粉fen虱shi的de防fang治zhi工gong作zuo是shi預yu防fang黃huang化hua曲qu葉ye病bing毒du病bing的de重zhong中zhong之zhi重zhong。令ling人ren擔dan憂you的de是shi,許xu多duo農nong戶hu並bing不bu重zhong視shi早zao期qi的de防fang治zhi,總zong認ren為wei白bai粉fen虱shi數shu量liang不bu多duo就jiu不bu用yong防fang治zhi,殊shu不bu知zhi白bai粉fen虱shi的de數shu量liang是shi呈cheng爆bao炸zha式shi的de增zeng長chang,當dang成cheng蟲chong大da量liang出chu現xian後hou再zai進jin行xing藥yao劑ji防fang治zhi是shi相xiang當dang困kun難nan的de。
在zai防fang治zhi白bai粉fen虱shi的de同tong時shi,選xuan用yong抗kang黃huang化hua曲qu葉ye病bing毒du病bing的de番fan茄qie品pin種zhong也ye是shi關guan鍵jian。雖sui然ran市shi麵mian上shang我wo們men可ke以yi買mai到dao對dui黃huang化hua曲qu葉ye病bing毒du病bing具ju有you抗kang性xing甚shen至zhi是shi高gao抗kang性xing的de番fan茄qie品pin種zhong,但dan我wo們men還hai沒mei有you找zhao到dao對dui黃huang化hua曲qu葉ye病bing毒du病bing免mian疫yi的de品pin種zhong,千qian萬wan不bu要yao認ren為wei種zhong植zhi的de是shi抗kang病bing毒du品pin種zhong就jiu高gao枕zhen無wu憂you了le。而er且qie病bing毒du和he抗kang性xing品pin種zhong之zhi間jian也ye存cun在zai一yi種zhong協xie同tong進jin化hua的de關guan係xi,抗kang性xing品pin種zhong在zai種zhong植zhi幾ji年nian以yi後hou也ye會hui麵mian臨lin著zhe抗kang性xing喪sang失shi的de風feng險xian,因yin此ci無wu論lun我wo們men種zhong植zhi的de番fan茄qie品pin種zhong是shi否fou對dui黃huang化hua曲qu葉ye病bing毒du病bing具ju有you抗kang性xing,都dou不bu能neng忽hu視shi對dui黃huang化hua曲qu葉ye病bing毒du病bing的de預yu防fang工gong作zuo,尤you其qi是shi白bai粉fen虱shi等deng媒mei介jie昆kun蟲chong的de防fang治zhi工gong作zuo。
預防白粉虱等病毒媒介昆蟲,菜農可以在定植前2~3天使用銳勝或阿克泰等強內吸殺蟲劑進行淋灌,持效期可達20天以上,20天之後再噴霧防治1次。同時使用50目(mu)以(yi)上(shang)的(de)防(fang)蟲(chong)網(wang)對(dui)植(zhi)株(zhu)和(he)害(hai)蟲(chong)進(jin)行(xing)物(wu)理(li)隔(ge)離(li),並(bing)在(zai)植(zhi)株(zhu)上(shang)方(fang)懸(xuan)掛(gua)粘(zhan)蟲(chong)板(ban)進(jin)行(xing)誘(you)殺(sha),這(zhe)樣(yang)可(ke)以(yi)減(jian)少(shao)害(hai)蟲(chong)的(de)侵(qin)害(hai)。番(fan)茄(qie)對(dui)黃(huang)化(hua)曲(qu)葉(ye)病(bing)毒(du)病(bing)的(de)抗(kang)性(xing)與(yu)植(zhi)株(zhu)的(de)長(chang)勢(shi)有(you)著(zhe)直(zhi)接(jie)關(guan)係(xi),在(zai)合(he)理(li)施(shi)肥(fei)的(de)基(ji)礎(chu)上(shang),使(shi)用(yong)植(zhi)物(wu)內(nei)源(yuan)激(ji)素(su)碧(bi)護(hu)進(jin)行(xing)葉(ye)麵(mian)噴(pen)霧(wu),畝(mu)用(yong)量(liang)3~6克,可以提高植株長勢,增強對病毒的抗性。
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