Departamento de Investigación Aplicada y Extensión Agraria, Instituto Madrileño de Investigación y Desarrollo Rural, Agrario y Alimentario, Madrid, Spain.
Departamento de Protección Vegetal, Instituto de Ciencias Agrarias-Consejo Superior de Investigaciones Científicas, Madrid, Spain.
Pest Manag Sci. 2022 Oct;78(10):4183-4194. doi: 10.1002/ps.7036. Epub 2022 Jul 5.
The unexpected Xylella fastidiosa (Xf) outbreak in Europe has led to aggressive management of the disease in recent years. As there is no cure for infected plants, management of vector populations is mandatory to contain the spread of Xf in infected areas. We aimed to assess the suitability of plant species commonly used as cover crops for the population growth of Philaenus spumarius L. (Aphrophoridae). Thus, we conducted a series of no-choice and multiple-choice assays to assess the oviposition preference of P. spumarius adults as well as the development and mortality rate of nymphs on 10 candidate plant species under laboratory and semi-field conditions. Our results will help to design ecological infrastructures, including a pull-push strategy for effective management of Xf vectors in olive groves.
Results showed that Anthriscus cerefolium is a suitable plant to enhance oviposition but has a lethal effect on the first nymphal instars of P. spumarius. Moreover, Diplotaxis tenuifolia is not suitable for oviposition or nymphal development. Sinapis alba does not enhance oviposition but is suitable for nymphal development with a medium-high cumulative mortality of the nymphs. Conversely, adults and nymphs had a high preference and low mortality on Taraxacum officinale, and nymphs showed a medium-high preference on Lavandula angustifolia, suggesting that these two species should be avoided as ground cover plants on Xf-susceptible crops.
The results obtained in our study open new ways to manage the vectors of Xf by using specific plant species as ground cover, which in turn will reduce the spread and prevalence of Xf. © 2022 Society of Chemical Industry.
出乎意料的是，快速生长韧皮部杆菌（Xylella fastidiosa，Xf）在欧洲的爆发导致近年来对该疾病进行了积极的管理。由于受感染的植物没有治愈方法，因此必须管理媒介种群，以遏制受感染地区 Xf 的传播。我们旨在评估常用于覆盖作物的植物物种对 Philaenus spumarius L.（Aphrophoridae）种群增长的适宜性。因此，我们进行了一系列无选择和多项选择实验，以评估 P. spumarius 成虫的产卵偏好以及在实验室和半野外条件下 10 种候选植物物种上若虫的发育和死亡率。我们的研究结果将有助于设计生态基础设施，包括在橄榄园中实施推拉策略，以有效管理 Xf 媒介。
结果表明，Anthriscus cerefolium 是一种适合增强产卵的植物，但对 P. spumarius 的第一龄若虫具有致死作用。此外，Diplotaxis tenuifolia 不适合产卵或若虫发育。Sinapis alba 不会增强产卵，但适合若虫发育，且若虫的累积死亡率中等偏高。相反，成虫和若虫对 Taraxacum officinale 具有较高的偏好和较低的死亡率，而若虫对 Lavandula angustifolia 具有较高的偏好，表明这两个物种应避免作为 Xf 敏感作物的地面覆盖植物。
本研究的结果为通过使用特定植物物种作为地面覆盖物来管理 Xf 的媒介开辟了新途径，这反过来又将减少 Xf 的传播和流行。© 2022 英国化学学会。
