不同颜色诱虫板对芒果园蓟马的田间诱集效果

Field Trapping Effect of Different Colors Sticky Cards to Thrips in Mango Orchard

【目的】蓟马类害虫已成为芒果树上的主要害虫,明确芒果蓟马类害虫的嗜好颜色对于采用诱虫色板防控芒果园蓟马具有重要意义,可以为蓟马害虫类害虫的诱控技术提供科学依据。【方法】利用光谱测色仪精确测量不同颜色诱虫板的反射光波长,通过田间试验比较10种不同颜色诱虫板以及不同悬挂高度和不同悬挂方向对芒果蓟马诱集量的差异。【结果】不同颜色诱虫板对芒果园蓟马的诱集量不同。蓝色(波长为466 nm)诱虫板对蓟马的诱集量显著高于其他颜色诱虫板,平均诱集量154.6头·板-1,黄色(波长为544 nm)、白色(波长为400 nm)诱虫板也有较强的引诱力,平均诱集量分别为85.0、51.8头·板-1。不同悬挂高度的蓝色诱虫板对蓟马的诱集量也存在差异。悬挂高度为2 m的诱虫板诱虫量最大(677.27头·板-1),显著高于其他处理;但不同悬挂方位对蓟马的引诱力影响不显著。【结论】蓝色诱虫板对芒果园蓟马的诱集作用最强,建议悬挂高度为2 m。

【Objective】Thrips have become the main pests in mango trees.It is of great significance to use color sticky cards to monitor and control thrips in mango orchard,which can provide scientific basis for the control technology of thrips.【Method】The wavelength of reflection of color sticky cards was measured with spectrophotometric colorimeter,and the trapping effect of 10 different color sticky cards and the differences of hanging heights and hanging directions of color cards were compared.【Result】The results indicated that thrips in mango orchard significantly preferred blue color(466 nm),and the tapping effect was higher than other color trap cards,with an average amount of 154.6 head per card,follow by yellow(544 nm)and white(400 nm),with an average amount of 85.0 head per card and 51.8 head per card,respectively.There were also significant differences in the attraction effect with different hanging heights to thrips.The amount of thrips attracted by the trap cards with a height of 2 m was the largest(677.27 head per card),which was significantly higher than other treatments.However,the effect of different hanging directions on the attraction of thrips was not significant.【Conclusion】The blue card has the strongest trapping effect to mango thrips,and the hanging height is suggested to be 2 m.