Department of Entomology, Plant Pathology, and Weed Science, New Mexico State University, Las Cruces, NM 88003, USA.
Department of Chemical and Materials Engineering, New Mexico State University, Las Cruces, NM 88003, USA.
Environ Entomol. 2024 Feb 20;53(1):11-17. doi: 10.1093/ee/nvad069.
The beet leafhopper, Circulifer tenellus (Baker 1896), is the sole vector of beet curly top virus (BCTV). Both the virus and the vector have very wide host ranges, including many crops and weeds. Industrial hemp (Cannabis sativa L.) has been reported as a host for both the virus and leafhopper in the past few years with the legal cultivation of the crop in the United States. This research assessed the interactions of the beet leafhopper and hemp in New Mexico by determining the natural infection of hemp with BCTV in 3 field plots in 2021 and 2022 and monitoring the numbers of leafhoppers using yellow sticky traps. The relative preference of beet leafhopper for hemp types and varieties of hemp was assessed using cafeteria-style choice tests. Higher numbers of beet leafhoppers were trapped in and around hemp fields in 2022 than in 2021 in all 3 locations. BCTV was found to infect all 3 types of hemp (cannabidiol or CBD, fiber, and grain) in 2022 in 1 location and only a single CBD variety of hemp in the other 2 locations. Two BCTV strains were identified in CBD hemp, while an additional BCTV strain was found infecting chile pepper grown at the same location.
麦二叉蚜，Circulifer tenellus（Baker 1896），是甜菜曲顶病毒（BCTV）的唯一载体。病毒和载体都有非常广泛的宿主范围，包括许多作物和杂草。工业大麻（Cannabis sativa L.）过去几年曾被报道为病毒和蚜虫的宿主，在美国该作物的合法种植。本研究通过在 2021 年和 2022 年的 3 个田间试验中确定大麻自然感染 BCTV 的情况，并使用黄色粘虫板监测蚜虫数量，评估了新墨西哥州麦二叉蚜和大麻之间的相互作用。使用自助式选择测试评估了麦二叉蚜对大麻类型和品种的相对偏好。在所有 3 个地点，2022 年在大麻田及其周围捕获的麦二叉蚜数量均高于 2021 年。在 2022 年的 1 个地点发现所有 3 种大麻（大麻素或 CBD、纤维和谷物）都感染了 BCTV，而在其他 2 个地点仅发现 1 种 CBD 大麻品种感染了 BCTV。在 CBD 大麻中鉴定出两种 BCTV 株系，而在同一地点种植的辣椒中发现了另一种 BCTV 株系。
