Entomology Department, Purdue University, West Lafayette, IN, USA.
Entomology Department, Penn State University, University Park, PA, USA.
Sci Rep. 2020 Nov 25;10(1):20588. doi: 10.1038/s41598-020-77461-9.
Spotted lanternfly (SLF) is an invasive insect in the Northeastern U.S. projected to spread nationally and globally. While SLF is a significant pest of vineyards, little is known about the pest in grape agroecosystems including its spatial ecology. SLF spatial patterns were analyzed using a combination of approaches including generalized linear mixed effect models, Moran's I statistic for spatial clustering, and Empirical Bayesian Kriging. Analysis revealed that SLF displayed significantly clumped distributions in monitored vineyards. Approximately 54% and 44% of the respective adult and egg mass populations were observed within the first 15 m of the vineyard edge. Importantly, the spatial concentration of adults at the edge was consistent temporally, both between years and weeks. Moreover, high populations of SLF on vines were significantly correlated with reduced fruit production in the following year. Mark-release-recapture of SLF revealed that higher proportions of SLF were recaptured on vines with high pre-existing SLF populations, indicating that SLF may exhibit aggregation behavior along vineyard perimeters. Monitoring and management efforts for SLF should be prioritized around vineyard edges as it may significantly reduce infestations and subsequent damage.
斑红蝽（SLF）是美国东北部的一种入侵昆虫，预计将在全国和全球范围内传播。虽然 SLF 是葡萄园的重要害虫，但人们对其在葡萄农业生态系统中的了解甚少，包括其空间生态学。SLF 的空间模式分析采用了多种方法的组合，包括广义线性混合效应模型、空间聚类的 Moran's I 统计量和经验贝叶斯克里金法。分析表明，SLF 在监测的葡萄园表现出明显的聚集分布。在葡萄园边缘的前 15 米范围内，观察到大约 54%和 44%的成虫和卵块种群。重要的是，成虫在边缘的空间集中在时间上是一致的，无论是在年与年之间还是周与周之间。此外，葡萄藤上 SLF 的高种群数量与次年水果产量的减少呈显著相关。SLF 的标记-释放-捕获表明，在 SLF 现有种群较高的葡萄藤上，被捕获的 SLF 比例更高，这表明 SLF 可能沿葡萄园周边表现出聚集行为。监测和管理 SLF 的工作应优先考虑葡萄园边缘，因为它可能显著减少虫害和随后的破坏。
