手機版
一、今年的發病情況
shuidaoheitiaoaisuobingzibenshijichuyilaizaizhenandengdiqudexiandaoshangfashengyanzhong，zheshiyinweixiandaojiaoyiganshuidaoheitiaoaisuobing，erzhenandamianjizhongzhideshixiandaopinzhong。 woshengshuidaopinzhongyijingdaoweizhu，jingdaojiaokangheitiaoaisuobing，xiandaozhongzhimianjijiaoxiao，yibannianfenzhilingxingfabing。jinnianwoshengshuidaoheitiaoaisuobingdefabingmianjibiqianjiniansuiyousuozengjia，danzhanquanshengshuidaozhongzhimianjidebilirengjiaoxiao。fabingjiaozhongdequyuzhuyaofenbuzaiyanhai、裏下河及淮北部分地區，集中表現在華粳6號、淮稻5號、Ⅱ優084等水稻品種的早播早栽田塊上，田間病株率一般在20-30%，嚴重的在80%左右。此外，徐稻3號、徐稻4號、揚輻粳7號、鎮稻99等品種也零星見病，大多發病較輕，病株率在10%以內。
jinnianshuidaoheitiaoaisuobingzaiyixieganbingpinzhongdezaobozaozaitiankuaizhongfa，zhuyaoshizhexietiankuaizaixiaomaishouhuoqianjiuyijingbozhong，shuidaochumiaohouyiyouyidingshuliangdehuifeishiqianruchuandu，maishouqijianyouyoudalianghuifeishiqianruchuandu，zaochengtianjiandaiduhuifeishishuliangxianzhugaoyuchibochizaidaotian，daozhishuidaoheitiaoaisuobingfabingzhong。yanhaijihuaibeibufendiqufashengshuidaoheitiaoaisuobing，haikenengyuzhexiediqushishuidaoheyumidehunzuoquyouguan。youyuyumicusuobingyushuidaoheitiaoaisuobingweitongyigebingyuan，huifeishihenrongyicongganrancusuobingdechunyumizhizhushanghuodu，ranhouqianrudaotianchuanduyinfaheitiaoaisuobing。huaidao5號、Ⅱ優084、徐稻4haodengkangtiaowenyekubingpinzhongfabingzhong，kenengyuzhexiekangtiaowenyekubingshuidaopinzhongdeqinbenhuoduohuoshaodixiedailexianxingjiyin，zhizhujiaoyiganheitiaoaisuobingyouguan。xuduorenrenweizhongzhideshikangshuidaotiaowenyekubingpinzhong，yinerfangsongduihuifeishidefangzhi，yeshiyinqishuidaoheitiaoaisuobingzhongfadeyuanyin。
二、大流行的製約因素
目前水稻黑條矮縮病還不具備大流行的條件，但應重視對該病的預防。據他分析，病害流行需要同時滿足病原、感病品種、氣候這三個條件，缺一不可。目前我省水稻黑條矮縮病大流行至少有兩個製約因素：一是感病品種種植麵積小。近年來我省粳稻種植麵積占水稻總麵積85%以上，大部分粳稻品種較耐（抗（黑條矮縮病），而感病秈稻、zajiaodaojibufendaiyouxianxingjiyindejingdaozhongzhimianjijiaoxiao，damianjizhongzhipinzhongbuliyubinghailiuxing。ershiheitiaoaisuobingdudezishentexing。shuidaoheitiaoaisuobingdukeyouhuifeishizhongshengdaiduchuandu，danbunengjinghuifeishideluanchuangeizidai，huifeishicheng、若蟲獲毒後，病毒必須在蟲體內經過一個增殖循回期（通常為7-12天）fangkechuandu，zheyidianyushuidaotiaowenbingduchuandutexingyouxianzhuqubie。shengchanshangkeyiyouzugoudeshijiancaiqufangzhicuoshijianghuifeishixiaomiezaichuanduzhiqian，jiangdibinghailiuxingjilv。jiashangjinnianlaidamianjishuidaoheitiaoaisuobingfabingqing，muqianjinzaijubudiqudeshaoshuganbingpinzhongshangliuxing，tianjianduyuanliang、灰飛虱帶毒率及獲毒蟲量相對較低，尚未構成大流行的病（毒）原基數。
三、防治不容忽視
今年水稻黑條矮縮病在我省部分地區、少數品種上流行危害，應引起足夠的重視。在灰飛虱蟲量居高不下、shuidaotiaowenyekubingdaliuxingweixieshangweijiechudeqingkuangxia，shengchanshangyingzaizonghefangzhishuidaotiaowenyekubingdetongshi，zhongshiduiheitiaoaisuobingdeyufang，youqishizhongzhikangshuidaotiaowenyekubingpinzhongjiheitiaoaisuobingzhongfadediqu。yaoyushuidaotiaowenyekubingfangzhiyiyang，caiqu“抗、避、斷、治”的de綜zong合he措cuo施shi預yu防fang黑hei條tiao矮ai縮suo病bing的de流liu行xing。一yi是shi因yin地di製zhi宜yi種zhong植zhi抗kang耐nai病bing品pin種zhong。水shui稻dao黑hei條tiao矮ai縮suo病bing重zhong發fa區qu，明ming年nian應ying壓ya縮suo感gan病bing品pin種zhong種zhong植zhi麵mian積ji，種zhong植zhi發fa病bing相xiang對dui較jiao輕qing的de品pin種zhong，降jiang低di病bing害hai流liu行xing風feng險xian。二er是shi合he理li推tui遲chi播bo栽zai期qi。適shi當dang推tui遲chi水shui稻dao播bo種zhong時shi間jian，壓ya縮suo早zao播bo早zao栽zai麵mian積ji；推(tui)廣(guang)機(ji)插(cha)秧(yang)和(he)小(xiao)苗(miao)拋(pao)栽(zai)等(deng)輕(qing)型(xing)栽(zai)培(pei)技(ji)術(shu)，有(you)條(tiao)件(jian)的(de)地(di)區(qu)在(zai)秧(yang)田(tian)全(quan)程(cheng)設(she)立(li)防(fang)蟲(chong)網(wang)育(yu)秧(yang)，防(fang)止(zhi)麥(mai)田(tian)灰(hui)飛(fei)虱(shi)集(ji)中(zhong)遷(qian)入(ru)秧(yang)田(tian)危(wei)害(hai)。三(san)是(shi)治(zhi)蟲(chong)控(kong)病(bing)。加(jia)強(qiang)對(dui)灰(hui)飛(fei)虱(shi)的(de)藥(yao)劑(ji)防(fang)治(zhi)，尤(you)其(qi)是(shi)對(dui)抗(kang)水(shui)稻(dao)條(tiao)紋(wen)葉(ye)枯(ku)病(bing)品(pin)種(zhong)，避(bi)免(mian)水(shui)稻(dao)黑(hei)條(tiao)矮(ai)縮(suo)病(bing)發(fa)生(sheng)。此(ci)外(wai)，還(hai)應(ying)防(fang)除(chu)水(shui)稻(dao)秧(yang)田(tian)及(ji)大(da)田(tian)周(zhou)邊(bian)雜(za)草(cao)，減(jian)少(shao)灰(hui)飛(fei)虱(shi)及(ji)水(shui)稻(dao)黑(hei)條(tiao)矮(ai)縮(suo)病(bing)毒(du)的(de)過(guo)渡(du)寄(ji)主(zhu)，並(bing)及(ji)時(shi)拔(ba)除(chu)田(tian)間(jian)病(bing)株(zhu)，減(jian)少(shao)田(tian)間(jian)毒(du)源(yuan)。玉(yu)米(mi)、水稻混作區，應重視對玉米粗縮病的防治，控製灰飛虱從玉米上獲毒
