顆粒劑致死率過高,不符合保留搖蚊幼蟲生態(tài)功能的要求,故而舍棄;將有效成分為<img src="/qkimages/ankx/ankx202507/ankx20250713-4-l.jpg" with="81px" style="vertical-align: middle;"> 的顆粒劑投入 2.4L 蒸餾水中,含量 10% 投入量 0.6g 時矯正死亡率為 85. 89% ,含量 20% 投入量 0.3g 時矯正死亡率為86. 90% 。這2種顆粒劑經(jīng)過模擬生境試驗驗證防治率無顯著差異。綜合考慮防治效果、物資成本及生態(tài)效益,選取 10%1200ITU/mg Bti 沉降型顆粒劑進行現(xiàn)場試驗。經(jīng)過與對照區(qū)比對,施藥2次對紅裸須搖蚊的防治率為 75.53% ,同期對比防治效果為 80.63% 。實踐證明,Bti沉降型顆粒劑能夠有效降低婚飛搖蚊種群密度,為城市濕地、公園景區(qū)防控?fù)u蚊提供了標(biāo)本兼治的方法。-龍源期刊網(wǎng)" />

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1種新型蘇云金桿菌以色列亞種沉降型顆粒劑的制備及其對紅裸須搖蚊的防治研究

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ThePreprationofSeimentation Granules withBacills turingrensisvar.sraelesisandControlEectonPropsiloceusakamusi LI Jie,ZHANG Miao,TIAN Juan-juan et al(Administrative Office of the Summer Palace,Beijing 100091)

AbstractIntecentyears,tesancecausedyuptialflightofronoidaebcameorefrquentlyioomidlaeow “redworm”werethesedimentorganism.Theexperiencesofaquaticinsectscontrolfrom WHOandothercoutriesshowedthatthewater sourcetreatmntoft’sdiggoudsetialndaltratyopestidesepattci lusturingresisarralesis(tiadenprentatitasefultotroloidlautiifulatiosid slowlynsedimentordisoledanddispersedduringsdimentation.Inthisstud,zolitepowderwasusedasvehicleandweusewetcoating methodtoprepareBtisimentationgaulesichdhighdensiandasysdimentation.ThecontrolectofthsegralesoProsilo cerusakamusieredeteedbylaboratoyotroiulatedfielddfieldtsts.esusofboratoryotroltestsoedatbote (20 and the granules could play a good role in controlling the larvae of Propsilocerus akamusi,but the mortality rate of7O00IU/gdbenabandodbauseitstecesivetoetthequirementsofretaigteologicalfunctiofod larvae.Added the sedimentation granules with 1 20O ITU/mg into 2.4L distilled water,the corrected mortality rate reached 85.89% for the granules with 10% concentration and 0.6g amounts,and 86.90% for granules with 20% concentration and 0.3g amounts. The results of simulatedfieldtestsowdhatasofntdfeinotrateftotfulsidegootd ecological benefit,the granules of 10% were selected for field test. Compared with the control area,after two times of dose,the control rate of these granules on the larvae of Propsilocerus akamusi was 75. 53% ,and the control effect during the same period was 80.63% Ithasbnprovedtattesetisdimentatiogranulesprepaedinissudyanecivelyduetepopulatioensityofidla vaes,and provide a method forthe prevention and controlof chironomid nuptialflight inurban wetlands and parks.

Keywordsciusturingresissraelesis(ti);dimentatiograles;ropsiloceuamsi;Zliteowde;loicalto

搖蚊是搖蚊科(Chironomidae)昆蟲的統(tǒng)稱,隸屬于雙翅目(Diptera)長角亞目(Nematocera),現(xiàn)行分類系統(tǒng)將其分為11個亞科。(剩余8078字)

目錄
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