賈尊尊,王小武,付開(kāi)赟,丁新華,郭文超,4,吐?tīng)栠d·阿合買提,姜衛(wèi)華,卡德·艾山
(1.新疆農(nóng)業(yè)大學(xué)農(nóng)學(xué)院,烏魯木齊 8430052;2.石河子大學(xué)農(nóng)學(xué)院,新疆石河子 832003;3.新疆農(nóng)業(yè)科學(xué)院植物保護(hù)研究所/農(nóng)業(yè)部西北荒漠綠洲作物有害生物綜合治理重點(diǎn)實(shí)驗(yàn)室,烏魯木齊 830091;4.新疆農(nóng)業(yè)科學(xué)院微生物應(yīng)用研究所,烏魯木齊830091;5.南京農(nóng)業(yè)大學(xué)植物保護(hù)學(xué)院,江蘇南京 210095;6.新疆農(nóng)科院吐魯番農(nóng)科所,新疆吐魯番 838000)
新疆主要農(nóng)區(qū)煙粉虱生物型鑒定及其對(duì)11種常用殺蟲(chóng)劑的抗性監(jiān)測(cè)
賈尊尊1,王小武2,3,付開(kāi)赟3,丁新華3,郭文超3,4,吐?tīng)栠d·阿合買提3,姜衛(wèi)華5,卡德·艾山6
(1.新疆農(nóng)業(yè)大學(xué)農(nóng)學(xué)院,烏魯木齊 8430052;2.石河子大學(xué)農(nóng)學(xué)院,新疆石河子 832003;3.新疆農(nóng)業(yè)科學(xué)院植物保護(hù)研究所/農(nóng)業(yè)部西北荒漠綠洲作物有害生物綜合治理重點(diǎn)實(shí)驗(yàn)室,烏魯木齊 830091;4.新疆農(nóng)業(yè)科學(xué)院微生物應(yīng)用研究所,烏魯木齊830091;5.南京農(nóng)業(yè)大學(xué)植物保護(hù)學(xué)院,江蘇南京 210095;6.新疆農(nóng)科院吐魯番農(nóng)科所,新疆吐魯番 838000)
【目的】明確新疆主要農(nóng)區(qū)煙粉虱生物型分布及其對(duì)常用殺蟲(chóng)劑的抗性水平,為新疆煙粉虱有效防治及抗性治理提供科學(xué)依據(jù)?!痉椒ā坎捎镁€粒體細(xì)胞色素氧化酶I 基因(mtCOI) 酶切擴(kuò)增多態(tài)性序列(CAPs)技術(shù)進(jìn)行煙粉虱的生物型鑒定,利用浸葉法和著卵浸漬法測(cè)定新疆伊寧、和田、莎車、吐魯番和昌吉煙粉虱種群對(duì)11種常用殺蟲(chóng)劑的抗性水平?!窘Y(jié)果】生物型鑒定顯示Q型煙粉虱在測(cè)試的5個(gè)田間種群中均有分布,和田煙粉虱是以B型為優(yōu)勢(shì)種的混合型種群,伊寧、莎車、昌吉和吐魯番種群均為Q型;抗性監(jiān)測(cè)表明吐魯番種群對(duì)吡蟲(chóng)啉的抗性達(dá)到57.67倍的高抗水平,伊寧種群僅對(duì)吡丙醚具有抗性。吐魯番、莎車、和田、昌吉種群對(duì)吡蟲(chóng)啉、噻蟲(chóng)嗪、呋蟲(chóng)胺和啶蟲(chóng)脒產(chǎn)生了低到高水平的抗性(RR5.53~57.67倍),對(duì)吡蚜酮+異丙威具有低到中等水平的抗性(RR5.14~31.92倍);吐魯番和昌吉種群對(duì)阿維菌素及溴氰蟲(chóng)酰胺都產(chǎn)生了中等水平的抗性(RR31.67~32.73倍,RR10.93~29.57倍),對(duì)氟啶蟲(chóng)胺腈為低到中等水平的抗性(9.7~11.66倍);莎車、吐魯番及伊寧種群對(duì)吡丙醚產(chǎn)生了低至中等水平的抗性(7.96~31.33倍)。【結(jié)論】測(cè)試的5個(gè)煙粉虱種群以Q型為主,B型僅有少量分布;不同煙粉虱種群對(duì)常用藥劑的抗性水平不同,對(duì)吡蟲(chóng)啉抗性水平最高,應(yīng)根據(jù)當(dāng)?shù)氐目剐运竭M(jìn)行針對(duì)性的抗性治理。
煙粉虱;生物型;抗藥性
【研究意義】煙粉虱[Bemisiatabaci(Gennadius)]是一種世界性的重要農(nóng)業(yè)害蟲(chóng),我國(guó)于20世紀(jì)40年代已有相關(guān)記載[1]。隨著世界貿(mào)易往來(lái)密切,自20世紀(jì)90年代中期以來(lái),B型、Q型煙粉虱先后入侵我國(guó),并在包括新疆的多個(gè)地區(qū)大暴發(fā),對(duì)吐魯番、和田和喀什等地區(qū)設(shè)施蔬菜和棉田造成了巨大的經(jīng)濟(jì)損失[2-4]。煙粉虱的防治以化學(xué)農(nóng)藥防治為主,對(duì)殺蟲(chóng)劑長(zhǎng)期的濫用和混用不可避免地造成了煙粉虱產(chǎn)生抗性的巨大風(fēng)險(xiǎn)[5]。Q型與B型煙粉虱在多數(shù)地區(qū)混合發(fā)生,研究發(fā)現(xiàn)Q型煙粉虱對(duì)藥劑的抗性往往高于B型煙粉虱,并且在殺蟲(chóng)劑高選擇壓下具有更強(qiáng)的生存優(yōu)勢(shì)[6],因此煙粉虱生物型的監(jiān)測(cè)對(duì)于煙粉虱的入侵生態(tài)學(xué)及其有效防控具有重要的意義,同時(shí)煙粉虱的抗藥性監(jiān)測(cè)可為其抗性治理提供理論指導(dǎo)。【前人研究進(jìn)展】煙粉虱是一種處于快速分化的復(fù)合種群[7],現(xiàn)有相關(guān)報(bào)道表明其至少有28個(gè)種下型[8]。煙粉虱的寄主范圍廣,包含至少600種;不同的生物型不僅在寄主上的危害狀、危害寄主種類存在顯著差異[9],而且對(duì)藥劑具有不同的耐受力。在所有生物型中,Q型與B型是入侵性最強(qiáng)和為害農(nóng)作物最嚴(yán)重的2種煙粉虱生物型。研究發(fā)現(xiàn)Q型煙粉虱比B型具有更高的耐藥性,這種耐藥性機(jī)制主要與Q型煙粉虱具有的抗性可遺傳性及P450基因過(guò)表達(dá)導(dǎo)致的解毒作用增強(qiáng)有關(guān)[9,10]。因此在藥劑高選擇壓下Q型煙粉虱有逐漸取代B型煙粉虱的趨勢(shì)。目前我國(guó)多個(gè)地區(qū)對(duì)煙粉虱種群進(jìn)行了常用藥劑抗性監(jiān)測(cè)及生物型鑒定[11-15],結(jié)果表明煙粉虱對(duì)有機(jī)磷、擬除蟲(chóng)菊酯和氨基甲酸酯等許多常規(guī)殺蟲(chóng)劑產(chǎn)生了高水平抗性,同時(shí)對(duì)昆蟲(chóng)生長(zhǎng)調(diào)節(jié)劑也產(chǎn)生不同程度的抗性[16-19]。 【本研究切入點(diǎn)】研究顯示新疆吐魯番和烏魯木齊煙粉虱對(duì)菊酯類殺蟲(chóng)劑、新煙堿類殺蟲(chóng)劑噻蟲(chóng)嗪及昆蟲(chóng)生長(zhǎng)調(diào)節(jié)劑吡丙醚也產(chǎn)生了中到高水平抗性[20]。利用煙粉虱mtDNA COI(mitochondrial DNA Cytocromec Oxydase I)限制性內(nèi)切酶酶切的方法區(qū)分B型和Q型煙粉虱,通過(guò)對(duì)新疆煙粉虱發(fā)生區(qū)用藥背景的調(diào)查,研究選取11種常用殺蟲(chóng)劑,測(cè)定不同地區(qū)煙粉虱種群對(duì)這些藥劑的抗性水平?!緮M解決的關(guān)鍵問(wèn)題】對(duì)新疆煙粉虱發(fā)生地區(qū)進(jìn)行系統(tǒng)調(diào)查,采集喀什、和田、吐魯番和伊犁地區(qū)的設(shè)施蔬菜大棚和昌吉市新疆農(nóng)業(yè)博覽園花卉園中的煙粉虱進(jìn)行生物型鑒定,對(duì)這些地區(qū)進(jìn)行田間常用藥劑的抗性監(jiān)測(cè),為新疆煙粉虱田間有效防治提供科學(xué)理論依據(jù)。
1.1 材 料
1.1.1 供試蟲(chóng)源
煙粉虱成蟲(chóng)于2016年3~6月期間采自新疆莎車、和田、吐魯番、伊寧和昌吉,分別取200頭浸泡酒精儲(chǔ)存于-20℃冰箱,剩余在養(yǎng)蟲(chóng)室使用常規(guī)棉新陸早-19飼養(yǎng)1代,取混合日齡成蟲(chóng)進(jìn)行毒力測(cè)定。煙粉虱相對(duì)敏感種群由中國(guó)農(nóng)業(yè)科學(xué)院花卉研究所提供。表1
表1 煙粉虱來(lái)源和寄主
Table 1 The source and the host ofBemisiatabaci
種群Population采集時(shí)間Dateofcollection(年.月.日)采集地點(diǎn)Location經(jīng)緯度NW寄主HostPlant生境Habitat伊寧Yining2016518新疆伊寧市托乎拉克鄉(xiāng)43°51'29"81°25'56"辣椒設(shè)施大棚吐魯番Turpan2016413新疆吐魯番市亞爾鄉(xiāng)奧依曼買村42°57'6"89°5'22"番茄設(shè)施大棚莎車Yarkant201649新疆喀什莎車縣烏達(dá)力克鄉(xiāng)8村38°18'28"77°56'42"番茄設(shè)施大棚和田Hotan2016411新疆和田市吉亞鄉(xiāng)團(tuán)結(jié)新村37°15'721"80°5'128"番茄設(shè)施大棚昌吉Changji201654新疆昌吉市新疆農(nóng)業(yè)博覽園44°0'40"87°18'29"一串紅溫室北京Beijing2016318北京甘藍(lán)養(yǎng)蟲(chóng)室
1.1.2 供試藥劑
45%吡蟲(chóng)啉乳油(海南正業(yè)中農(nóng)高科股份有限公司)、70%噻蟲(chóng)嗪可濕性粉劑(河北國(guó)欣諾農(nóng)生物技術(shù)有限公司)、20%呋蟲(chóng)胺可溶粒劑(日本三井化學(xué)AGRO株式會(huì)社)、40%啶蟲(chóng)脒可溶性粉劑(青島星牌作物科學(xué)有限公司)、15%吡丙醚乳油(江蘇艾津農(nóng)化有限責(zé)任公司)、50%氯啶蟲(chóng)胺腈(可立施)水分散粒劑(美國(guó)陶氏益農(nóng)公司);10%溴氰蟲(chóng)酰胺(倍內(nèi)威)分散油懸浮劑(杜邦公司)、4.5%高效氯氰菊酯乳油(蘇州富美植物保護(hù)劑有限公司)、1.8%阿維菌素乳油(廣東金農(nóng)達(dá)生物科技有限公司)、吡蚜酮+異丙威(50%米桂)可濕性粉劑(美國(guó)世科姆公司)、氯蟲(chóng)苯甲酰胺+噻蟲(chóng)嗪(40%福戈)水分散粒劑(先正達(dá)作物保護(hù)有限公司)。
1.2 方 法
1.2.1 煙粉虱生物型鑒定
1.2.1.1 煙粉虱mtCOI的PCR擴(kuò)增
每個(gè)種群樣本至少選擇30頭煙粉虱個(gè)體進(jìn)行單頭煙粉虱DNA的提取,方法參考Frohlich等(1999)[21], 利用上游引物C1-J-2195;5-TTGATTTTTTGGTCATCCAGAAGT-3和下游引物R-BQ-2819;5-CTGAATATCGRCGAGGCATTCC-3(Simons等,1994;Chu等,2010)[22-23]擴(kuò)增煙粉虱mtCOI,PCR反應(yīng)體系為13 μL,其中2.6 μL模板DNA,6.5 μL 2×TaqPCR MaserMix(北京康維世紀(jì)生物科技有限公司 CW0690A)、引物(20 μM)各0.52 μL。PCR反應(yīng)程序:95℃預(yù)變性5 min,95℃變性30s、52℃退火30s,72℃延伸30s,共40個(gè)循環(huán),72℃延伸5 min, 4℃保存,反應(yīng)產(chǎn)物在-20℃貯存?zhèn)溆谩?/p>
1.2.1.2 基于煙粉虱mtCOI的生物型鑒定
B型和Q型的鑒定以VspI酶切的擴(kuò)增多態(tài)性序列(CAPS, Cleaved Amplified Polymorphic Sequences)進(jìn)行鑒定,方法參考Horowitz等(2005)[24]。酶切體系20 μL,含PCR產(chǎn)物13 μL,內(nèi)切酶VspI 0.5 μL,37 ℃溫育2 h。取5 μL消化樣品在1%瓊脂糖凝膠,以120 V 電泳分離45 min,在凝膠成像系統(tǒng)(美國(guó)伯樂(lè)BIO-RAD Gel Doc XR+)中檢查結(jié)果。如果特異性擴(kuò)增出600 bp的條帶,則為B型煙粉虱;如果是500 bp的產(chǎn)物,則為Q型煙粉虱。
1.2.2 煙粉虱抗藥性測(cè)定1.2.2.1 浸葉法
參考Feng等(2009)方法[25]并略作修改,在平底玻璃管(直徑22 mm高65 mm),底部加2 mL的1.5%瓊脂,待瓊脂凝固且水分蒸發(fā)后使用。用打孔器將棉花葉片打成直徑為22 mm的圓葉片,在各濃度藥液里浸漬10 s并晾干,然后將葉片正面朝下平鋪于已加好瓊脂的平底玻璃管中,清水處理作為對(duì)照。每管接入30~50頭煙粉虱成蟲(chóng),用封口膜封口并戳洞保持透氣。將指形管倒置于光周期為 16L∶8D(光暗比)、相對(duì)濕度54%、溫度(28±1)℃的光照培養(yǎng)箱,48 h 后檢查死亡率。死亡標(biāo)準(zhǔn):試蟲(chóng)翅膀分開(kāi)、不動(dòng),輕輕觸碰后仍不動(dòng)視為死亡。
1.2.2.2 葉片著卵浸漬法
根據(jù)Li等(2012)方法[26]加以改動(dòng):將7盆生長(zhǎng)兩周左右、長(zhǎng)勢(shì)均勻的棉花植株放入養(yǎng)蟲(chóng)籠中,每籠接入700頭左右成蟲(chóng),讓其在棉花葉片產(chǎn)卵24 h;將著卵葉片在不同梯度的吡丙醚藥液中浸漬20s,晾干后置于光周期為 16L∶8D(光暗比)、相對(duì)濕度54%、溫度(28±1)℃的培養(yǎng)箱中。清水處理作為對(duì)照。觀察12日,2齡若蟲(chóng),計(jì)算死亡率,死亡標(biāo)準(zhǔn):若蟲(chóng)干癟記為死亡。
1.3 數(shù)據(jù)統(tǒng)計(jì)
按照Abbott公式計(jì)算死亡率和校正死亡率,采用機(jī)率值分析法計(jì)算毒力回歸曲線、LC50值(mg /L)、相關(guān)系數(shù)及95%置信區(qū)間??剐员稊?shù)(Resistance ratio,RR)為田間種群LC50值與敏感品系LD50值的比值。
抗性水平的界定參照劉鳳沂等[27]:RR<3, 敏感性階段;3≤RR<5,敏感性下降;5≤RR<10,低水平抗性;10≤RR<40,中等水平抗性;40≤RR<160,高水平抗性;RR≥160,為極高水平抗性。
2.1 煙粉虱生物型鑒定
2016年對(duì)新疆5個(gè)煙粉虱種群進(jìn)行生物型鑒定,研究表明,Q型煙粉虱在各個(gè)采樣點(diǎn)均有分布,伊寧、莎車、昌吉和吐魯番種群鑒定的所有樣品均為Q型煙粉虱。而和田種群鑒定的60頭中,其中18頭為Q型,其余為B型,是以B型為主的混合生物型種群。圖1
M:DNA marker I;1 伊寧種群;2 吐魯番種群;3~4 莎車種群;5 昌吉種群;6~7 和田種群
M:DNA marker I; 1YN; 2TP; 3-4SC; 5CJ; 6-7HT
圖1 新疆5個(gè)煙粉虱種群的生物型鑒定結(jié)果
Fig.1 Biotypesresult of five field populations ofBemisiatabaciin Xingjiang
2.2 不同煙粉虱種群的抗藥性監(jiān)測(cè)
根據(jù)殺蟲(chóng)劑的不同作用方式,對(duì)吡丙醚使用著卵葉片浸漬法,其它殺蟲(chóng)劑使用成蟲(chóng)浸葉法,測(cè)定了伊寧、莎車、和田、昌吉和吐魯番五個(gè)煙粉虱種群對(duì)11種新疆地區(qū)田間常用藥劑的敏感性。以北京煙粉虱為敏感參照種群,結(jié)果顯示和田種群對(duì)吡蟲(chóng)啉、噻蟲(chóng)嗪、呋蟲(chóng)胺、溴氰蟲(chóng)酰胺、吡蚜酮+異丙威產(chǎn)生了低水平抗性,抗性倍數(shù)(RR)分別為9.98、8.52、6.33、8.91和5.33倍,對(duì)吡丙醚為表現(xiàn)敏感性下降,RR為3.16倍,對(duì)其它測(cè)試藥劑均為敏感水平;莎車種群對(duì)吡蟲(chóng)啉、噻蟲(chóng)嗪、呋蟲(chóng)胺和吡蚜酮+異丙威為中等水平抗性,RR分別為26.92、21.52、13.23和31.92倍,對(duì)吡丙醚為低水平抗性(RR7.96倍);吐魯番種群對(duì)吡蟲(chóng)啉產(chǎn)生57.67倍的高水平抗性,對(duì)呋蟲(chóng)胺、吡丙醚、氯啶蟲(chóng)胺腈、溴氰蟲(chóng)酰胺和阿維菌素分別產(chǎn)生10.08、31.33、11.66、29.67、32.73倍的中等水平抗性,對(duì)噻蟲(chóng)嗪、啶蟲(chóng)脒和吡蚜酮+異丙威為低水平抗性(RR分別為 9.86 、5.53和5.14倍);伊寧種群對(duì)吡丙醚產(chǎn)生中等水平抗性,RR為25.7倍,對(duì)啶蟲(chóng)脒、呋蟲(chóng)胺及吡蚜酮+異丙威表現(xiàn)為敏感性下降;昌吉種群對(duì)溴氰蟲(chóng)酰胺、阿維菌素和吡蚜酮+異丙威 產(chǎn)生中等水平抗性,RR分別為10.93、31.67、28.38倍,對(duì)啶蟲(chóng)脒和氯啶蟲(chóng)胺腈產(chǎn)生了低水平抗性(RR分別為5.58和9.7倍)。所有測(cè)試種群對(duì)高效氯氰菊酯和氯蟲(chóng)苯甲酰胺+噻蟲(chóng)嗪均表現(xiàn)為敏感。表2
表2 新疆不同煙粉虱種群對(duì)11種殺蟲(chóng)劑的抗性
Table 2 Resistance to eleven insecticides in filed populations ofBemisiatabacifrom Xinjiang
藥劑Insecticide種群Population測(cè)試個(gè)體數(shù)No.testedindividuals致死中濃度LC50(mg/L)95%置信區(qū)間95%FL抗性倍數(shù)RR吡蟲(chóng)啉北京51021091532~2903-Imidacloprid和田5092104317001~26046998莎車4315677939009~826462692吐魯番57912164469104~2141355767伊寧47660044832~7458285噻蟲(chóng)嗪北京6081252877~1788-Thiamethoxam和田353106737467~15254852莎車5952694222289~325672152吐魯番365123469967~15291986伊寧5671346904~1988108啶蟲(chóng)脒北京400502297~848-Acetamiprid和田452728512~1036145莎車3651183855~1638236吐魯番39127772269~3398553伊寧41719631592~2419391昌吉37528042379~3305558呋蟲(chóng)胺北京503212136~330-Dinotefuran和田47213421040~1730633莎車38228052354~33431323吐魯番37222891825~2871108伊寧394984627~1645464昌吉362387186~806183吡丙醚北京4650021001~0048-Pyriproxyfen和田45100680030~0150316莎車44701710101~0288796吐魯番35606730507~08913133伊寧4030552040~0770257
續(xù)表
表2 新疆不同煙粉虱種群對(duì)11種殺蟲(chóng)劑的抗性
Table 2 Resistance to eleven insecticides in filed populations ofBemisiatabacifrom Xinjiang
藥劑Insecticide種群Population測(cè)試個(gè)體數(shù)No.testedindividuals致死中濃度LC50(mg/L)95%置信區(qū)間95%FL抗性倍數(shù)RR氟啶蟲(chóng)胺腈北京387149094~235-Sulfoxaflor和田44917093~310114莎車433455291~711305吐魯番51217381427~21161166伊寧463284192~421191昌吉393144612012~174097溴氰蟲(chóng)酰胺北京413104078~138-Cyantraniliprole和田416927626~1372891吐魯番43330862526~37692967伊寧416292122~700281昌吉4581136806~16021093高效氯氰菊酯北京42793686832~12847-Betacypermethrin和田39940753134~5197043吐魯番43241283360~5072044伊寧43457884608~7269062昌吉37337143011~458104阿維菌素北京399000030002~0005-Avermectins和田431000050003~0008178吐魯番448000980006~00153273伊寧431000030002~0005097昌吉454000950006~00153167吡蚜酮+異丙威北京47066875215~8574-Pymetrozine+和田4033567527162~46854533Isoprocarb莎車41821344651813~8792963192吐魯番4303437125332~46634514伊寧4522653219216~36633397昌吉459189774102190~3524242838氯蟲(chóng)苯甲酰胺+北京41759523976~8911-噻蟲(chóng)嗪和田39252123791~7166088Chlorantraniliprole+吐魯番35259264126~85111Thiamethoxam伊寧3464633102~6911078昌吉47164234717~8990108
3.1 北京、河南、江蘇、浙江、山東和海南等多個(gè)地區(qū)煙粉虱的生物型監(jiān)測(cè)發(fā)現(xiàn),Q型煙粉虱有逐漸代替B型煙粉虱的趨勢(shì)[23,29,30]。曹騫等(2013)[28]調(diào)查表明新疆喀什與和田地區(qū)煙粉虱均為B型,而研究煙粉虱生物型鑒定結(jié)果顯示喀什地區(qū)莎車煙粉虱為Q型,和田地區(qū)和田市為B、Q型煙粉虱混合地區(qū),這表明新疆煙粉虱的生物型演替變化與其它省市地區(qū)種群的相一致。新疆主要農(nóng)區(qū)煙粉虱在冬季、春季主要集中于設(shè)施蔬菜大棚內(nèi)危害,夏季、秋季多在棉田、加工番茄田等大田內(nèi)發(fā)生危害,由于設(shè)施蔬菜大棚內(nèi)藥劑的頻繁使用導(dǎo)致了Q型煙粉虱逐漸取代B型煙粉虱的現(xiàn)象產(chǎn)生。同時(shí)新疆地區(qū)煙粉虱入侵途徑復(fù)雜,存在持續(xù)和多次入侵現(xiàn)象。在烏魯木齊、石河子、昌吉、吐魯番、阿拉山口口岸等地區(qū)花卉市場(chǎng)調(diào)查發(fā)現(xiàn)在一串紅、一品紅、朱槿等外地調(diào)運(yùn)花卉上都攜帶有以Q型為主、數(shù)量巨大的煙粉虱,可見(jiàn)疫區(qū)花卉調(diào)運(yùn)是煙粉虱持續(xù)傳入的原因。
3.2 煙粉虱的抗藥性產(chǎn)生與當(dāng)?shù)氐挠盟幈尘懊芮邢嚓P(guān),而高頻率的用藥也是導(dǎo)致Q型煙粉虱取代B型煙粉虱主要誘因。煙粉虱的防治主要依賴于化學(xué)防治,常用藥劑有新煙堿類、有機(jī)磷類、氨基甲酸酯類、擬除蟲(chóng)菊酯類、昆蟲(chóng)生長(zhǎng)調(diào)節(jié)劑類等;而新疆地區(qū)設(shè)施農(nóng)業(yè)多分布于各農(nóng)田生態(tài)區(qū),與棉花等主要農(nóng)作物交錯(cuò)種植,因此設(shè)施蔬菜上施用殺蟲(chóng)劑與棉田害蟲(chóng)防治使用的類似。
據(jù)統(tǒng)計(jì),截止2012年吐魯番地區(qū)設(shè)施蔬菜種植面積占其耕地總面積的22.3%[31],而大棚附近多種植棉花等煙粉虱寄主植物,為煙粉虱的發(fā)生和危害提供了環(huán)境發(fā)生條件及食物過(guò)渡,造成煙粉虱的危害不斷加重,當(dāng)?shù)卦O(shè)施蔬菜大棚中施藥頻率高,用藥量大,主要施用藥劑以吡蟲(chóng)啉、噻蟲(chóng)嗪、阿維菌素、吡丙醚、高效氯氰菊酯,溴氰蟲(chóng)酰胺等為主,不合理混用時(shí)有出現(xiàn),易產(chǎn)生交互抗性??剐员O(jiān)測(cè)結(jié)果顯示吐魯番地區(qū)煙粉虱抗性最為普遍,對(duì)11種測(cè)試藥劑中的9種產(chǎn)生了不同程度的抗性,其中對(duì)吡蟲(chóng)啉達(dá)到高水平抗性,對(duì)同類藥劑中的啶蟲(chóng)脒、噻蟲(chóng)嗪及呋蟲(chóng)胺也產(chǎn)生了低到中等水平的抗性。當(dāng)?shù)貞?yīng)嚴(yán)格控制新煙堿類藥劑的施用頻率,合理混用各類藥劑,延緩煙粉虱的抗藥性加劇。和田和莎車煙粉虱對(duì)吡蟲(chóng)啉、噻蟲(chóng)嗪、呋蟲(chóng)胺、吡蚜酮+異丙威分別產(chǎn)生了低水平和中等水平抗性,對(duì)吡丙醚,和田種群為敏感性下降而莎車種群產(chǎn)生了低水平抗性,和田種群是B型煙粉虱為主,而莎車種群為Q型煙粉虱,另外和田地區(qū)由于發(fā)生量低施藥頻率低于莎車,生物型及用藥背景的不同可能是和田種群與喀什種群抗性水平差異產(chǎn)生的原因。伊寧設(shè)施蔬菜大棚面積占耕地總面積0.35%,同時(shí)因棉花種植區(qū)較少,且周邊多種植玉米,其主要寄主分布有限,缺少大面積的越夏場(chǎng)所,當(dāng)?shù)責(zé)煼凼l(fā)生量較小且分散,主要在設(shè)施蔬菜棚內(nèi)發(fā)生危害,當(dāng)?shù)爻J褂眠帘逊乐窝料x(chóng)等刺吸式口器害蟲(chóng),較少施用其它藥劑。抗性監(jiān)測(cè)也顯示伊寧種群僅對(duì)吡丙醚產(chǎn)生中等水平抗性,對(duì)其它測(cè)試藥劑均未產(chǎn)生抗性,這與當(dāng)?shù)赜盟幥闆r十分吻合。昌吉州煙粉虱僅在農(nóng)業(yè)博覽園的溫室中采集到,且來(lái)源于各地花卉引進(jìn),同時(shí)因觀賞性植物需要頻繁施藥,防治藥劑主要以阿維菌素、吡蚜酮+異丙威和煙堿類殺蟲(chóng)劑為主,抗性監(jiān)測(cè)結(jié)果表明此地區(qū)煙粉虱已經(jīng)對(duì)這些藥劑產(chǎn)生中等水平和低水平抗性,吡蚜酮+異丙威不建議在此地區(qū)繼續(xù)施用。
3.3 鑒于新疆地區(qū)煙粉虱對(duì)不同類藥劑已經(jīng)產(chǎn)生不同程度抗性,應(yīng)建立合理的抗性治理及有效防治措施和策略。嚴(yán)格遵循輪換用藥的原則,切忌單一使用同種作用機(jī)制的殺蟲(chóng)劑,嚴(yán)格管控藥劑混施的行為,同時(shí)結(jié)合農(nóng)事操作、化學(xué)、物理、生物的綜合手段有效防治煙粉虱,延緩煙粉虱的抗性發(fā)生和發(fā)展。對(duì)于煙粉虱發(fā)生嚴(yán)重區(qū)域而言,應(yīng)改進(jìn)當(dāng)?shù)刈魑锊季?,尤其是在棉花集中種植區(qū)合理調(diào)減設(shè)施蔬菜種植面積,適當(dāng)壓縮豆類、茄果類蔬菜,如番茄、辣椒、黃瓜等煙粉虱主要寄主的種植比例,也可利用凍棚和曬垡等農(nóng)藝措施減少煙粉虱的發(fā)生量。通過(guò)色誘、施用生物農(nóng)藥等防治措施都可以減少對(duì)化學(xué)防治的過(guò)度依賴,減低藥劑對(duì)煙粉虱的選擇壓。
4.1 Q型煙粉虱在新疆各采樣點(diǎn)均有分布。除和田種群以B型為主外,其它測(cè)試種群均為Q型,新疆Q型煙粉虱已取代B型成為優(yōu)勢(shì)生物型。新疆地區(qū)煙粉虱入侵途徑復(fù)雜,目前Q型煙粉虱存在持續(xù)和多次入侵現(xiàn)象,應(yīng)加強(qiáng)檢疫,嚴(yán)格控制從疫區(qū)調(diào)運(yùn)花卉苗木。
4.2 不同煙粉虱種群抗性水平與當(dāng)?shù)赜盟帤v史和水平密切相關(guān)。吐魯番種群抗性最為嚴(yán)重,對(duì)吡蟲(chóng)啉、吡丙醚、氯啶蟲(chóng)胺腈、溴氰蟲(chóng)酰胺、呋蟲(chóng)胺和阿維菌素等9種藥劑都產(chǎn)生抗性,其中對(duì)吡蟲(chóng)啉已達(dá)到高水平抗性,伊寧種群僅對(duì)吡丙醚產(chǎn)生中等水平抗性;昌吉種群對(duì)溴氰蟲(chóng)酰胺、阿維菌素和吡蚜酮+異丙威 產(chǎn)生中等水平抗性,對(duì)啶蟲(chóng)脒和氯啶蟲(chóng)胺腈產(chǎn)生了低水平抗性;和田及莎車種群對(duì)吡蟲(chóng)啉、噻蟲(chóng)嗪、呋蟲(chóng)胺、溴氰蟲(chóng)酰胺、吡蚜酮+異丙威分別產(chǎn)生了低水平抗性和中等水平抗性。煙粉虱的抗性治理區(qū)應(yīng)在嚴(yán)密監(jiān)測(cè)煙粉虱抗性的發(fā)展動(dòng)態(tài)基礎(chǔ)上,根據(jù)當(dāng)?shù)氐目剐运街贫ê侠淼闹卫聿呗浴?/p>
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Supported by:Supported bu Supporting Xingjiang by Science and Technology Program"Molecular detection technology study of resistance ofBemisiatabaci"(201591140); National key research project "The dynamic distribution and resource database construction of the main invading organisms"(2016YFC1202100)
Biotype Identification ofBemisiatabaciand 11 Kinds of Common Pesticides Resistance Status in Xinjiang Main Agricultural Areas
JIA Zun-zun1, Wang Xiao-wu2,3, FU Kai-yun3, DIN Xin-hua3, GUO Wen-chao3,4,Tuerxun Ahemaiti3, JIANG Wei-hua5,Kader Aishan6
(1.CollegeofAgronomy,XingjiangAgriculturalUniversity,Urumqi830052,China; 2.CollegeofAgronomy,ShihezhiUniversity,ShiheziXinjiang832003,China;3.KeyLaboratoryofIntergradedManagementofHarmfulCropVerminofChinaNorth-westernOasis,MinistryofAgriculture,P.R.China/ResearchInstituteofPlantProtection,XinjiangAcademyofAgriculturalSciences,Urumqi830091,China; 4.InstituteofMicroorganismApplicationinXinjiangAcademyofAgriculturalSciences,Urumqi830091,China; 5.CollegeofPlantProtection,NanjingAgriculturalUniversity,Nanjing210095,China; 6.XinjiangAcademyofAgriculturalSciences,TurpanXinjiang838000,China)
【Objective】 This project aims to make clear the biotype distribution ofBemisiatabaciin the main agricultural areas of Xinjiang and commonly used pesticides resistance level in order to provide a scientific basis for scientific prevention and pesticides resistance management.【Method】Mitochondrial cytochrome oxidase I gene (mtCOI) enzyme sequence amplification polymorphism (CAPs) technology was applied to identify the whiteflies biotype. The resistances to 11 commonly used insecticides in Yining, Hotan, Shache, Turpan and Changji were determined by the methods of leaf-dipping and egg impregnation leaf-dipping.【Result】Biological identification showed that Q type was distributed in the 5 tested field populations.Bemisiatabaciin Hotan was a mixed type with B dominant species. Those found in Yining, Shache, Changji and Turpan belonged to type Q. Resistance monitoring showed that the high level of resistance to imidacloprid resistant population in Turpan reached 57.67 times. The population of Yining was only resistant to Imidacloprid. Those populations in Turpan, Shache, Hotan and Changji resulted in from low to high levels of resistance to imidacloprid, thiamethoxam, acetamiprid and dinotefuran (RRwas 5.53-57.67 times) and led to from low to middle levels of resistance to pymetrozine+isoprocarb (RR5.14-31.92 times); Populations in Turpan and Changji displayed moderate level resistance to avermectins and cyantraniliprole (RR31.67-32.73 times,10.93-29.57 times) and to low to moderate level resistance to sulfoxaflor (RR9.7-11.66 times). Shache, Yining and Turpan populations exhibited low to moderate level resistance to pyriproxyfen (RR7.96-31.33 times).【Conclusion】The tested fiveBemisiatabacifield populations' biotypes mainly belong to Q biotype with a small amount of B biotype. DifferentBemisiatabacibiotype shows different resistance levels, among which, the highest level of resistance is to the Imidacloprid. Resistance management should be carried out according to the local resistance level to pesticides.
Bemisiatabaci; biotype; resistance to pesticides
10.6048/j.issn.1001-4330.2017.02.013
2015-10-15
自治區(qū)科技援疆項(xiàng)目“煙粉虱抗性分子檢測(cè)技術(shù)研發(fā)”(201591140);國(guó)家重點(diǎn)研發(fā)計(jì)劃“生物安全關(guān)鍵機(jī)技術(shù)研發(fā)”重點(diǎn)專項(xiàng)“主要入侵生物的動(dòng)態(tài)分布與資源庫(kù)建設(shè)”(2016YFC1202101)
賈尊尊(1990-),女,四川人,碩士研究生,研究方向?yàn)檗r(nóng)業(yè)昆蟲(chóng)與害蟲(chóng)防治,(E-mail)jiazunzun@163.com
吐?tīng)栠d·阿合買提(1969-),男,新疆人,研究員,碩士,研究方向?yàn)檗r(nóng)業(yè)昆蟲(chóng)與害蟲(chóng)防治,(E-mail)tul015@163.com 姜衛(wèi)華(1969-),女,新疆人,副教授,研究方向?yàn)槔ハx(chóng)毒理學(xué)及分子生物學(xué),(E-mail)jwh@njau.edu.cn
S435.112.6
A
1001-4330(2017)02-0304-09