国产bbaaaaa片,成年美女黄网站色视频免费,成年黄大片,а天堂中文最新一区二区三区,成人精品视频一区二区三区尤物

【24h】

The efficacy of insecticides and application methods against Contarinia nasmrtii under laboratory and field conditions

機(jī)譯：在實(shí)驗(yàn)室和野外條件下殺蟲劑的功效和施用方法對(duì)納斯氏菌的防治

獲取原文
  • 摘要
  • 著錄項(xiàng)
  • 相似文獻(xiàn)
  • 相關(guān)主題

摘要

Swede midge(Contarinia nasturtii Keiffer)is a serious gall-forming insect pest of cruciferous plants in Europe and southwestern Asia. In North America,it was frst identified in Ontario,Canada,in 2000,and in Niagara County,New York,USA,in 2004. The insect is now rapidly spreading in both Canada and the US. To date. Infestations of C. nasturtii have been found in 40 counties in Canada and 11 counties in the US.Under laboratory conditions,the efficacy of 20 insecticides belonging to 12 different classes was evaluated using foliar spray,soil drench or seed treatments.Results showed that λ-cyhalothrin,acephate,acetamiprid,chlorpyrifos and methomyl were effective foliar spray insecticides against C.nasturtii larvae. These insecticides,except for acetamiprid,were also effective on adults.Acetamiprid,imidacloprid,and thiamethoxam were very effective when applied by soil drench and provided 100％control of swede midge larvae for 7 weeks.Clothianidin and thiamethoxam provided 100％control when used as seed treatments.Under field conditions in Canada in 2005,performance of these products was poor compared to the laboratory trials. Tests were conducted to determine whether this was due to insecticide tolerance,but this hypothesis was rejected. Instead.we hypothesize that the failure was due to continuous and hiigh populations of C.nasturtii.Additional field and laboratory tests are currently underway to evaluate insecticides under lower population pressure and to test the potential of cultural controls and host plant resistance as components of an overall IPM program.
機(jī)譯：瑞典mid（Contarinia nasturtii Keiffer）是歐洲和西南亞的一種十字花科植物的嚴(yán)重形成蟲害的害蟲。在北美，該病于2000年在加拿大安大略省和2004年在美國(guó)紐約的尼亞加拉縣首次被發(fā)現(xiàn)。這種昆蟲現(xiàn)在在加拿大和美國(guó)迅速傳播。至今。在加拿大的40個(gè)縣和美國(guó)的11個(gè)縣中發(fā)現(xiàn)了納氏梭菌的侵染。在實(shí)驗(yàn)室條件下，通過葉面噴霧，土壤淋洗或種子處理對(duì)屬于12種不同類別的20種殺蟲劑的功效進(jìn)行了評(píng)估。結(jié)果表明，λ -氟氯氰菊酯，乙酰甲胺磷，撲熱息痛，毒死rif和滅多威是有效的殺蟲劑。這些殺蟲劑，除對(duì)乙酰氨基吡蟲酰胺外，對(duì)成蟲也有效。土霉素施用時(shí)，醋乙酰胺，吡蟲啉和噻蟲嗪非常有效，對(duì)for蟲幼蟲的控制率為100％，為期7周。種子處理。2005年在加拿大的田間條件下，與實(shí)驗(yàn)室試驗(yàn)相比，這些產(chǎn)品的性能較差。進(jìn)行測(cè)試以確定這是否歸因于殺蟲劑的耐受性，但該假設(shè)被拒絕了。取而代之的是，我們假設(shè)該失敗是由于連續(xù)和大量的C.nasturtii造成的。目前正在進(jìn)行其他野外和實(shí)驗(yàn)室測(cè)試，以評(píng)估在較低種群壓力下的殺蟲劑，并測(cè)試文化控制和寄主植物抗藥性的潛在可能性。整體IPM程序。

著錄項(xiàng)

相似文獻(xiàn)

  • 外文文獻(xiàn)
  • 中文文獻(xiàn)
  • 專利
獲取原文

客服郵箱：kefu@zhangqiaokeyan.com

京公網(wǎng)安備：11010802029741號(hào) ICP備案號(hào)：京ICP備15016152號(hào)-6 六維聯(lián)合信息科技 (北京) 有限公司?版權(quán)所有

  • 客服微信

  • 服務(wù)號(hào)