花生輕斑駁病毒病,由花生條紋病毒引起,感病植株首先在頂端嫩葉上出現褪綠斑,隨後發展成淺綠與綠色相間的輕斑駁、banbo,yanyemaiyouduanxulvsetiaowenyijixiangshuyehuayedenggezhongzhengzhuang。zaoqiganbingzhizhu,shaoaihua,houqiaihuabumingxian。qingbanbobingzaitianjianliuxingjuyoufabingzao,kuosankuai,xingchenggaofengzao,liuxingpinlvgaodetedian。
花hua生sheng黃huang花hua葉ye病bing毒du病bing,由you黃huang瓜gua花hua葉ye病bing毒du引yin起qi,病bing株zhu開kai始shi在zai頂ding端duan嫩nen葉ye上shang出chu現xian褪tui綠lv黃huang斑ban,葉ye片pian卷juan曲qu。隨sui後hou發fa展zhan成cheng黃huang綠lv相xiang間jian的de黃huang花hua葉ye,網wang狀zhuang明ming脈mai和he綠lv色se條tiao紋wen等deng各ge種zhong症zheng狀zhuang。病bing株zhu中zhong等deng矮ai化hua。黃huang花hua葉ye病bing的de滸hu具ju有you發fa生sheng早zao,形xing成cheng高gao峰feng早zao的de特te點dian。
花hua生sheng普pu通tong花hua葉ye病bing毒du病bing,由you花hua知zhi矮ai化hua病bing毒du引yin起qi,病bing株zhu開kai始shi在zai頂ding端duan嫩nen葉ye出chu現xian脈mai淡dan或huo褪tui綠lv斑ban,隨sui後hou發fa展zhan成cheng淺qian綠lv色se相xiang間jian的de普pu通tong花hua葉ye症zheng狀zhuang。沿yan側ce脈mai出chu現xian國guo徽hui狀zhuang小xiao綠lv色se條tiao紋wen和he斑ban點dian。葉ye片pian變bian窄zhai,葉ye緣yuan波bo狀zhuang扭niu曲qu。病bing株zhu中zhong度du矮ai化hua,所suo結jie莢jia果guo多duo為wei小xiao果guo,普pu通tong花hua葉ye病bing在zai花hua生sheng生sheng長chang前qian期qi發fa展zhan緩huan慢man,到dao生sheng育yu中zhong後hou期qi進jin入ru高gao峰feng,年nian份fen流liu行xing頻pin率lv較jiao低di。
花(hua)生(sheng)芽(ya)枯(ku)病(bing),由(you)番(fan)茄(qie)斑(ban)萎(wei)病(bing)毒(du)引(yin)起(qi),病(bing)株(zhu)開(kai)始(shi)在(zai)頂(ding)端(duan)葉(ye)片(pian)上(shang)出(chu)現(xian)很(hen)多(duo)伴(ban)有(you)壞(huai)死(si)的(de)褪(tui)綠(lv)黃(huang)斑(ban)或(huo)環(huan)斑(ban)。有(you)的(de)葉(ye)片(pian)壞(huai)死(si),沿(yan)葉(ye)柄(bing)和(he)頂(ding)端(duan)表(biao)皮(pi)下(xia)維(wei)管(guan)束(shu)褐(he)色(se)壞(huai)列(lie),並(bing)可(ke)導(dao)致(zhi)頂(ding)端(duan)枯(ku)死(si)。頂(ding)端(duan)生(sheng)長(chang)受(shou)到(dao)抑(yi)製(zhi),節(jie)間(jian)縮(suo)短(duan),植(zhi)株(zhu)明(ming)顯(xian)矮(ai)化(hua)。
花生病毒病是花生的主要病害之一,嚴重影響著花生的產量和品質,在中國北方生產區,尤為嚴重。
花生病毒病,除芽枯病主要由薊馬傳播外,其他病害如輕斑駁病、黃花葉病、普pu通tong花hua葉ye病bing則ze通tong過guo種zhong子zi和he蚜ya蟲chong傳chuan播bo,種zhong傳chuan病bing薯shu這zhe些xie病bing害hai流liu行xing的de主zhu要yao初chu侵qin染ran源yuan。種zhong傳chuan率lv的de高gao低di主zhu要yao受shou發fa病bing時shi期qi的de影ying響xiang,發fa病bing早zao,種zhong傳chuan率lv高gao。種zhong子zi帶dai毒du率lv與yu種zhong子zi大da小xiao成cheng負fu相xiang關guan,大da粒li種zhong子zi帶dai毒du率lv低di,小xiao粒li種zhong子zi帶dai毒du率lv高gao。在zai存cun在zai毒du源yuan和he感gan病bing品pin種zhong的de情qing況kuang下xia,蚜ya蟲chong發fa生sheng早zao晚wan和he數shu量liang是shi病bing毒du病bing流liu行xing的de主zhu要yao因yin素su。傳chuan播bo病bing毒du的de蚜ya蟲chong主zhu要yao是shi田tian間jian活huo動dong的de有you翅chi蚜ya。一yi般ban花hua生sheng苒ran期qi蚜ya蟲chong發fa生sheng早zao,數shu量liang大da,易yi引yin起qi病bing害hai嚴yan重zhong流liu行xing,反fan之zhi則ze發fa病bing輕qing。花hua生sheng苗miao期qi降jiang雨yu少shao、氣候溫和、幹燥,易導致蚜蟲大發生,造成病害流行,反之則輕。
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