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dantou123金虫 (正式写手)
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[求助]
跪求大侠帮小弟翻译一段英文,感激不尽(小弟是新虫,所以金币不多,请大家帮帮忙,谢谢)
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小弟英语差,所以恳请大侠帮帮忙,感激不尽. The eYcacy of PuVer® aerosol dispensers (Suterra LLC) in disrupting male moth orientation to baited traps was supe- rior for G. molesta compared with C. pomonella. Although 84–98% disruption was recorded for G. molesta during the two consecutive seasons, only 26–75% disruption was achieved for C. pomonella. This level of disruption is con- sidered poor and may be below that needed to achieve ade- quate fruit protection for C. pomonella without the input of companion insecticides. Our results with C. pomonella are in contrast to those reported by Shorey and Gerber (1996a) who tested an earlier version of PuVers®. Their study dem- onstrated 95–98% disruption of C. pomonella in walnuts at a PuVer® deployment rate per ha similar to ours; each unit releasing ca. 240 mg of codlemone/day. However, their study was conducted under comparatively lower population densities of C. pomonella. Furthermore, their experiments were conducted in walnut orchards with trees of greater height and canopy size than the 3.7–5.5 m apple trees investigated in the current study. Greater canopy size may reduce wind speed and prevent pheromone loss resulting in better disruption (Suckling et al. 2007). Perhaps the combi- nation of larger canopy size of walnut than apple orchards and lower population densities of C. pomonella explains the diVerence in eYcacy between the Shorey and Gerber (1996a) study and the current results. However, it is also possible that deployment of G. molesta pheromone impacted disruption of C. pomonella; this hypothesis deserves further investigation. |
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2楼2014-05-13 15:14:12
