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【目的】明确我国华北地区棉盲蝽优势种对不同种棉花品种的选择偏好性,以及这几种盲蝽的种群动态及发生规律。【方法】2013和2014年通过小区随机排列田间系统调查的方法,比较分析了中黑盲蝽Adelphocoris suturalis(Jakovlev)、三点盲蝽Adelphocoris fasciaticollis(Reuter)和绿盲蝽Apolygus lucorum(Meyer-Dür)对12个棉花品种的选择偏好性,种群动态及与温度的关系。【结果】3种盲蝽均对石亚系1号表现出明显偏好性,对N73Deltapine FO表现出明显的不偏好性。棉盲蝽在每年7月初开始危害,7月下旬及8月上旬盲蝽种群密度达到峰值,9月上旬种群密度逐渐降低,9月中下旬盲蝽迁出棉田。在本实验调查的温度范围内(17~35℃),盲蝽种群密度随着温度升高而增大。【结论】棉盲蝽对不同品种有明显选择偏好性,盲蝽种群大的地区推荐种植盲蝽厌食品种。
【Objective】 The objective of this study was to determine the preference of cotton laceworm predators in different cotton varieties in North China, as well as the population dynamics and occurrence rules of these species. 【Method】 In 2013 and 2014, field investigation was conducted in a randomized plot in a plot. Adelphocoris suturalis (Jakovlev), Adelphocoris fasciaticollis (Reuter) and Apolygus lucorum (Meyer-Dür) Selection preference of 12 cotton cultivars, population dynamics and its relationship with temperature. 【Result】 The results showed that all the three species of Lygus were predominantly susceptible to Shiya No. 1 and showed obvious non-preference for N73Deltapine FO. Lygus begins to endanger the beginning of July each year, reaching a peak in late July and early August. Population densities gradually decrease in early September, and late osprey moved out of the cotton field in late September. In the temperature range investigated in this experiment (17 ~ 35 ℃), the density of Lygus population increased with the increase of temperature. 【Conclusion】 The cotton stink bug has obvious preference to different varieties, and the planthoppers are recommended to grow anorexia varieties in areas with large population.