Bernat-Ponce Saúl, García-García Rosalía, Aure Cristina M, Nieves Lorena, Bouvet Juan Pedro, Beitia Francisco J, Monzó César
Centro de Protección Vegetal y Biotecnología, Instituto Valenciano de Investigaciones Agrarias, CV-315, Km 10.7, 46113 Valencia, Spain.
Estación Experimental Agropecuaria (EEA), Instituto Nacional de Tecnología Agropecuaria (INTA), Ruta Nacional 14, Km 259, Concordia E3201, Entre Ríos, Argentina.
Insects. 2025 Apr 15;16(4):416. doi: 10.3390/insects16040416.
is a vector-borne bacterium causing significant economic losses in global agricultural industries. Management strategies focus primarily on controlling vector populations. The diversity of vector species, their polyphagy, and the wide range of host plants supporting bacterial development make pathosystems particularly challenging to manage. Understanding vector and host plant relationships is key to developing effective strategies. This study examined the oviposition strategies, host preferences, and nymphal development of Europe's main vectors, and , under semi-field conditions (screenhouse). The two species exhibited distinct behaviors. primarily laid eggs on its preferential host, the grass , while preferred dry soil substrates, irrespective of the host plant species. The presence of multiple hosts reduced the oviposition rates of compared with single-host scenarios. The nymphs of quickly identified and settled on preferential hosts, while the nymphs initially moved randomly but later congregated on their preferred host. Despite their polyphagy, nymph survival was limited to preferential hosts. These findings highlight opportunities for habitat management strategies, such as enhancing plant diversity and eliminating overwintering egg sites, to mitigate vector populations and limit the spread of .
是一种通过媒介传播的细菌，在全球农业产业中造成重大经济损失。管理策略主要集中在控制媒介种群上。媒介物种的多样性、它们的多食性以及支持细菌发育的广泛寄主植物种类使得病原体系统的管理极具挑战性。了解媒介与寄主植物的关系是制定有效策略的关键。本研究在半田间条件（防虫网室）下考察了欧洲主要媒介 和 的产卵策略、寄主偏好及若虫发育情况。这两个物种表现出不同的行为。 主要在其偏好的寄主植物禾本科植物 上产卵，而 则偏好干燥土壤基质，无论寄主植物种类如何。与单寄主情况相比，多种寄主的存在降低了 的产卵率。 的若虫能迅速识别并定居在偏好的寄主上，而 的若虫最初随机移动，但后来聚集在它们偏好的寄主上。尽管它们具有多食性，但若虫的存活仅限于偏好的寄主。这些发现凸显了栖息地管理策略的机会，例如增加植物多样性和消除越冬卵位点，以减少媒介种群并限制 的传播。
