诱捕器颜色、悬挂高度与位置对番茄潜叶蛾诱捕效果评价

【目的】研究诱捕器颜色、悬挂高度、悬挂位置对诱蛾效果的影响,为针对番茄潜叶蛾的绿色防控提供依据。【方法】以专一性引诱剂为材料,采用行为生态学技术方法,在有机蔬菜生产温棚,对比研究性信息素诱捕器(平面式)颜色、诱捕器悬挂高度和诱捕器悬挂位置对番茄潜叶蛾诱捕效果。【结果】蓝色、绿色、黄色和白色4种颜色性信息素诱捕器均可诱捕到一定数量的番茄潜叶蛾,4种颜色诱捕器41 d平均日诱蛾量从高至低依次为蓝色65.4头、绿色59.7头、白色47.4头、黄色30.9头,逐日诱蛾量中,蓝色诱捕器最高,依次为蓝色和绿色>白色>黄色诱捕器,差异显著。不同颜色诱捕器逐日诱蛾量占比中,4种颜色的诱捕器两两比较均有显著性差异,依次为蓝色>绿色>白色>黄色。3种悬挂高度性信息素诱捕器39 d平均日诱蛾量依次为40~60 cm为125.1头、90~110 cm为96.1头、140~160 cm为65.1头,逐日诱蛾量中,40~60 cm最高,依次为40~60 cm>90~110 cm>140~160 cm,差异明显。不同悬挂高度诱捕器诱蛾量占比中,40~60 cm显著高于其他2种悬挂高度,依次为40~60 cm>90~110 cm>140~160 cm,差异明显。3种悬挂位置性信息素诱捕器35 d平均日诱蛾量依次为悬挂于通风口处为103.0头、出入口处为66.6头、远离通风口处为71.4头/诱捕器,逐日诱蛾量中,通风口处诱蛾量最高,依次为通风口>远离通风口>出入口,差异明显。不同悬挂位置诱捕器诱蛾量占比中,悬挂于通风口处的诱捕器诱蛾量显著高于其他2种悬挂位置,依次为通风口>出入口和远离通风口,差异明显。通风口>远离通风口>出入口。【结论】在设施蔬菜生产中,将蓝色性信息素诱捕器(平面式)于40~60 cm放置通风口处,对番茄潜叶蛾的诱捕效果最好。

Evaluation of Trap Colour,Hanging Height and Position on the Effectiveness of Trapping Tuta absoluta(meyrick)

【Objective】 To investigate the effects of trap color, hanging height and hanging position on the trapping effect, and to provide a basis for the green prevention and control of tomato leaf diving moth. 【Methods】 In this study, specific sex attractants were used as experimental materials, and behavioral ecology techniques were adopted to conduct a comparative study on the trapping effects of sex pheromone traps (plane traps) on tomato leaf miner moth in organic vegetable production shed. 【Results】 4 kinds of color: blue, green, yellow and white sex pheromone traps could trap a certain quantity of tomato leaf moth, 1 d average daily trap quantity among the 4 kinds of color traps from high to low in turn was blue 65.4, green 59.7, white 47.4, yellow 30.9. In terms of daily amount of trap, the highest was blue trap. The order was blue and green > white > yellow trap, and the difference was significant. There were significant differences in the proportion of the daily amount of traps with different colors, and the order was blue > green > white > yellow. The average daily trapping quantity of the three kinds of high hanging sex pheromone traps was 125.1 at 40 - 60 cm, 96.1 at 90 - 110 cm and 65.1 at 140 - 160 cm, respectively, with the highest daily trapping quantity at 40 - 60 cm. The order was 40-60 cm > 90-110 cm > 140-160 cm, the difference was obvious. The proportion of moths captured by traps at different hanging heights at 40 - 60 cm was significantly higher than at the other two hanging heights, and the order was 40 - 60 cm > 90 - 110 cm > 140 - 160 cm. The 35 d average daily trapping quantity of the three kinds of traps was 103.0 at the air vent, 66.6 at the exit and 71.4 at the place far from the air vent. The highest daily trapping quantity was at the air vent, which was in the order of air vent > far from the air vent > the entrance and exit, and the difference was obvious. The proportion of the trapping amount of the traps in different hanging positions was significantly higher than those in the other two hanging positions, which was in the order of air outlet > entrance and exit and far away from air outlet. Comprehensive analysis of the hazard status (number of holes, number of larvae) of the three suspension positions showed: the ventilation outlet > away from the ventilation outlet > entrance and exit. 【Conclusion】 The blue sex pheromone trap (planar traps) placed at 40-60 cm vents has the best trapping effect on tomato leaf miner in vegetable production.