棉盲椿象包括綠盲蝽、中黑盲蝽等種類,常混合發生,為長圓形中小型昆蟲,有卵、若蟲與成蟲三種蟲態。卵為長茄形,在棉花上卵產於葉片的主脈、大葉的邊緣、葉柄和青鈴表皮下。以成蟲、若蟲危害,活動性強。棉花的頂心、邊心受害後造成棉葉穿孔、“破葉瘋”、無頭苗、duotoumiao。hualeibeihaihouzaileiguanshangchuxianhuangban,huayaoweisuo,yingxiangshoujing,bingzaochengtuoluo。youlingshouhaihoulingkeshangchuxianshuizizhuangzongseyuancibandian,houzhuanweiheihese,neibupeizhushousun,yingxiangxianweifayuxingcheng,yanzhongshikelianpianaoxianchengweijiangguoshenzhituoluo。
棉盲椿象為多寄主、雜食性害蟲,除危害棉花外,還危害蠶豆、苜蓿、苕子、大豆、馬鈴薯、胡蘿卜、向日葵、薄荷、花生、枸杞、聚合草、檾麻、野蘿卜、紅三葉、甜菜、芹菜、茼蒿等作物以及楊、柳、桑、槐等樹木及多種雜草。棉田外的盲椿象蟲源地防治對於減少棉田盲椿象發生與危害至關重要。
盲mang椿chun象xiang在zai棉mian田tian危wei害hai初chu期qi往wang往wang不bu易yi發fa覺jiao,在zai棉mian株zhu被bei害hai症zheng狀zhuang明ming顯xian時shi防fang治zhi又you失shi之zhi過guo晚wan,因yin此ci需xu在zai蟲chong情qing監jian測ce的de基ji礎chu上shang,加jia強qiang蟲chong源yuan田tian與yu棉mian田tian藥yao劑ji防fang治zhi,按an照zhao當dang地di農nong業ye技ji術shu部bu門men的de指zhi導dao科ke學xue用yong藥yao。盲mang椿chun象xiang苗miao期qi百bai株zhu有you蟲chong4-5頭,蕾期10-12頭,鈴期20-25頭,可用施閑、新寶、銳勁特、辛硫磷防治,並注意與其他棉田害蟲的兼治。如每畝用12%施閑乳油90毫升或24%新寶乳油90毫升均勻噴霧可兼治盲椿象、玉米螟、棉鈴蟲。辛硫磷等有機磷農藥及2.5%功夫菊酯、銳rui勁jin特te防fang治zhi盲mang椿chun象xiang效xiao果guo也ye較jiao好hao。噴pen藥yao以yi用yong機ji動dong彌mi霧wu機ji效xiao果guo好hao,用yong小xiao型xing手shou動dong噴pen霧wu機ji時shi可ke以yi用yong幾ji架jia機ji子zi同tong時shi作zuo業ye,由you棉mian田tian四si周zhou包bao圍wei噴pen灑sa效xiao果guo更geng好hao。棉mian田tian套tao種zhong盲mang椿chun象xiang寄ji主zhu作zuo物wu應ying一yi並bing噴pen藥yao防fang治zhi,著zhe重zhong對dui嫩nen頭tou、邊心和蕾鈴噴灑。高溫季節注意安全用藥,禁止使用高毒、劇(ju)毒(du)農(nong)藥(yao)。對(dui)於(yu)盲(mang)椿(chun)象(xiang)危(wei)害(hai)棉(mian)株(zhu)形(xing)成(cheng)的(de)多(duo)頭(tou)苗(miao),可(ke)通(tong)過(guo)及(ji)時(shi)整(zheng)枝(zhi)治(zhi)理(li)留(liu)二(er)頭(tou)或(huo)一(yi)個(ge)強(qiang)枝(zhi)等(deng)補(bu)救(jiu)措(cuo)施(shi),充(chong)分(fen)發(fa)揮(hui)棉(mian)株(zhu)調(tiao)節(jie)補(bu)償(chang)作(zuo)用(yong),特(te)別(bie)是(shi)表(biao)現(xian)在(zai)蕾(lei)的(de)大(da)量(liang)補(bu)償(chang),促(cu)使(shi)結(jie)鈴(ling)數(shu)增(zeng)加(jia),挽(wan)回(hui)部(bu)分(fen)損(sun)失(shi),將(jiang)盲(mang)椿(chun)象(xiang)危(wei)害(hai)損(sun)失(shi)降(jiang)低(di)到(dao)最(zui)低(di)限(xian)度(du)。
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