张冬梅　高娃　刘丹　张东旭　潘子旺

摘要[目的]明确不同番茄品种对美洲斑潜蝇的选择性差异。[方法]在温湿度恒定的小气候环境中，研究了美洲斑潜蝇对18个不同番茄品种及材料的选择性。通过零频率估计法测定了美洲斑潜蝇幼虫的种群密度，同时调查虫情指数。[结果]美洲斑潜蝇对不同番茄品种的选择性存在差异。野生番茄品种ZBNH11的虫情指数最低，其次是包头市农业科学研究所选育出的15个番茄品种及材料，而引进的钻红八号和普罗旺斯的虫情指数最高。[结论]研究结果为合理利用抗性品种减轻美洲斑潜蝇危害提供了理论依据。

关键词美洲斑潜蝇；番茄品种；选择性

中图分类号S436.412文献标识码

A文章编号0517-6611（2017）31-0166-02

Abstract[Objective] The aim was to clear selectivity difference of Liriomyz sativae to different varieties of tomatoes.[Method] In a constant temperature and humidity environment， Liriomyz sativaes selectivity of 18 different varieties of tomatoes and materials was studied.The population density of the larvae of the species was determined by the zero frequency estimation method，and the index of the index was also investigated.[Result] The species were different in different varieties of tomato varieties.The wild tomato varieties ZBNH11 had the minimum pest index，secondly was the 15 tomato varieties and materials which was selected by Baotou City Research Institute of Agricultural Sciences，and the introduction of varieties like Zuanhong 8 and provence had the highest pest index.[Conclusion] The results provide reference for using resistant varieties to reduce the damage of Liriomyz sativae.

Key wordsLiriomyz sativae；Variety of tomatoes；Selectivity

美洲斑潜蝇（Liriomyza sativae Blanchard）是我国近年来新发现的检疫性害虫，自1993年传入我国海南省三亚市被首次发现以来[1]，目前除西藏自治区外，全国均有分布[2]。近年来，随着温室大棚面积的不断扩大，该虫在内蒙古自治区的温室内可以完成周年危害。该虫虫体小，繁殖快，世代重叠严重，对蔬菜的危害十分严重。该虫寄主范围广，全国已发现的寄主达26科312种，为害蔬菜达80种。该虫致使作物减产30%～50%，甚至绝收。由于番茄是它的嗜好寄主，为明确番茄不同品種对美洲斑潜蝇的选择性差异，笔者采用零频率估计法[3-4]调查虫口密度和虫情指数，比较了美洲斑潜蝇对不同番茄品种的嗜好程度，为合理利用抗性品种减轻该虫危害提供依据。

1材料与方法

1.1供试品种

试验……