Lewis Phillip, Davila-Flores Amanda, Wallis Emily
Forest Pest Methods Laboratory, United States Department of Agriculture, Animal and Plant Health Inspection Service, Buzzards Bay, MA, United States.
Front Insect Sci. 2023 Apr 17;3:1154510. doi: 10.3389/finsc.2023.1154510. eCollection 2023.
Spotted lanternfly (SLF) ( (White)), an invasive planthopper discovered in Pennsylvania, USA in 2014, continues to spread and is now present in 14 states with substantial infestations present in seven states. Population projections using adult SLF trapping or visual counts are not reliable due to the transient, migratory behavior of the adults which make population forecasts difficult. Another approach to population monitoring is utilization of the stationary egg mass stage, but counting small cryptic egg masses throughout the canopy of large trees in dense woodlots is arduous and prone to error. After several field seasons testing various trapping configurations and materials, we have identified an efficient, simple, low-cost trap termed a 'lamp shade trap' that is attached to the lower trunk area of an SLF host tree. SLF females readily enter the trap and lay eggs on the thin, flexible trap surface. A vertical trap orientation was superior, and the most productive woodlots yielded an average of 47 and 54 egg masses per trap, and several traps had over 100 egg masses. There were 1,943 egg masses tallied from 105 traps placed at six locations in two states. Egg mass counts in the area above and below the traps and on nearby control trees yielded very few egg masses in comparison. Selection of trees 15 to 20 cm in diameter for trap placement is most efficient, yielding good egg mass abundance while minimizing the amount of trap material used. The lamp shade trap has potential as an effective tool to identify SLF in new areas, gauge SLF population levels in woodlots and can also be used to collect and monitor egg masses for research purposes.
斑衣蜡蝉（SLF）（(White)）是2014年在美国宾夕法尼亚州发现的一种入侵性木虱，它仍在继续扩散，目前已在14个州出现，其中7个州有大量虫害。由于成虫具有短暂的迁徙行为，使用成虫诱捕或目视计数来预测种群数量并不可靠，这使得种群预测变得困难。另一种种群监测方法是利用静止的卵块阶段，但在茂密林地的大树树冠上统计小型隐蔽卵块既费力又容易出错。经过几个野外季节对各种诱捕装置和材料的测试，我们确定了一种高效、简单、低成本的诱捕器，称为“灯罩诱捕器”，它安装在斑衣蜡蝉寄主树的树干下部区域。斑衣蜡蝉雌虫很容易进入诱捕器，并在薄而柔韧的诱捕器表面产卵。垂直放置诱捕器效果更佳，产量最高的林地每个诱捕器平均有47至54个卵块，还有几个诱捕器有超过100个卵块。在两个州的六个地点放置的105个诱捕器共统计到1943个卵块。相比之下，诱捕器上方和下方区域以及附近对照树上的卵块数量很少。选择直径为15至20厘米的树木放置诱捕器最为有效，既能获得丰富的卵块数量，又能减少诱捕材料的使用量。灯罩诱捕器有潜力成为一种有效的工具，用于在新区域识别斑衣蜡蝉、评估林地中斑衣蜡蝉的种群水平，还可用于收集和监测卵块以进行研究。
