Ruether Brian F, Nixon Laura J, Comhaire Lander, Gerard Christian M, Gelambi Mariana, Nielsen Anne L, Leskey Tracy C, Tholl Dorothea
Department of Biological Sciences, Virginia Tech, Latham Hall, Blacksburg, VA, USA.
USDA-ARS, Appalachian Fruit Research Station, Kearneysville, WV, USA.
J Econ Entomol. 2025 Jun 19. doi: 10.1093/jee/toaf135.
Spotted lanternfly (Lycorma delicatula White [Hemiptera: Fulgoridae]) is a large piercing-sucking insect, native to Asia and invasive in the United States. Since its arrival in Pennsylvania in 2014, L. delicatula has infested 16 additional states and damaged a variety of ornamental plants, trees, and fruit crops: most notably, cultivated grapevines. While available insecticides are effective at killing L. delicatula in vineyards, they require repeated applications due to constant re-infestation by the insect, leading to increased production costs and potential secondary pest outbreaks. An alternative approach would be to repel L. delicatula from vineyards, which offers a more sustainable strategy to prevent initial and subsequent infestations. By utilizing mark-release-recapture studies under semi-field conditions in 2022, we identified lavender essential oil and CNR-1 (a proprietary emulsifiable essential oil blend) as two potential repellents for L. delicatula adults in the context of grapevines. We further evaluated the response of adult L. delicatula to lavender oil and CNR-1 SPLAT polymer matrix formulations in highly infested vineyards during September 2022. Lavender oil significantly repelled L. delicatula in early September on Vitis hybrid 'Traminette' when compared with untreated and SPLAT control treatments. We also observed L. delicatula adults shift their preference to V. hybrid 'Traminette' over V. vinifera 'Syrah' in late September, which may be attributed to cultivar preference and/or difference in senescence timing. Here, we provide evidence that lavender essential oil could serve as an additional tool for managing L. delicatula in vineyards.
斑衣蜡蝉（Lycorma delicatula White [半翅目：蜡蝉科]）是一种大型刺吸式昆虫，原产于亚洲，现入侵美国。自2014年抵达宾夕法尼亚州以来，斑衣蜡蝉已在另外16个州出现，并对多种观赏植物、树木和水果作物造成破坏：最显著的是栽培葡萄树。虽然现有的杀虫剂在葡萄园能有效杀死斑衣蜡蝉，但由于该昆虫不断再次侵扰，需要反复施用，导致生产成本增加和潜在的次生害虫爆发。另一种方法是将斑衣蜡蝉驱离葡萄园，这提供了一种更可持续的策略来预防初次和后续侵扰。通过在2022年半田间条件下进行标记释放再捕获研究，我们确定薰衣草精油和CNR - 1（一种专利乳化精油混合物）是葡萄园环境中斑衣蜡蝉成虫的两种潜在驱避剂。我们在2022年9月对高度侵扰的葡萄园进一步评估了斑衣蜡蝉成虫对薰衣草油和CNR - 1 SPLAT聚合物基质配方的反应。与未处理和SPLAT对照处理相比，9月初薰衣草油在杂交葡萄品种‘特拉米内特’上显著驱避了斑衣蜡蝉。我们还观察到9月下旬斑衣蜡蝉成虫将偏好从酿酒葡萄品种‘西拉’转向杂交葡萄品种‘特拉米内特’，这可能归因于品种偏好和/或衰老时间差异。在此我们提供证据表明薰衣草精油可作为葡萄园管理斑衣蜡蝉的额外工具。
