Berger Beatrice, Daub Matthias, Gärtner Kathleen, Becker Matthias, König Stephan
Julius Kühn Institute (JKI)-Federal Research Centre for Cultivated Plants, Institute for Plant Protection in Field Crops and Grassland, 38104 Braunschweig, Germany.
Julius Kühn Institute (JKI)-Federal Research Centre for Cultivated Plants, Institute for Plant Protection in Field Crops and Grassland, 50189 Elsdorf, Germany.
Life (Basel). 2022 Dec 24;13(1):57. doi: 10.3390/life13010057.
The dissemination of soil tares in the potato and sugar beet processing industry is one of the main paths for the spread of potato cyst nematodes (PCN), a severe quarantine pest. Efficient measures for the disinfestation of tare soil from PCN, but also from beet cyst nematodes (BCN), are needed. In our study, (a PCN) and (a BCN) cysts were sealed in gauze bags and imbedded in sedimentation basins. The cysts were either placed (a) in a presedimentation basin (Brukner basin) for three days, (b) in the presedimentation basin for three days and subsequently in sedimentation basins for nine weeks or (c) in sedimentation basins for nine weeks (without presedimentation). We tested the viability of the eggs and juveniles by hatching assays and using the reproduction rates in bioassays. We demonstrated that PCN and BCN imbedded in a sedimentation basin were only still showing some hatching activity after 2.5 weeks, while no hatching was observed when an additional Brukner basin treatment was conducted before sedimentation.
土壤杂质在马铃薯和甜菜加工行业中的传播是马铃薯孢囊线虫(PCN,一种严重的检疫性害虫)传播的主要途径之一。需要采取有效的措施来消除杂质土壤中的PCN,以及甜菜孢囊线虫(BCN)。在我们的研究中,将PCN孢囊和BCN孢囊密封在纱袋中,并埋入沉淀池。孢囊的放置方式如下:(a) 在预沉池(布鲁克纳池)中放置三天;(b) 在预沉池中放置三天,随后在沉淀池中放置九周;或 (c) 在沉淀池中放置九周(无预沉)。我们通过孵化试验和生物测定中的繁殖率来测试卵和幼虫的活力。我们证明,埋入沉淀池中2.5周后,PCN和BCN仍有一些孵化活性,而在沉淀前进行额外的布鲁克纳池处理时,则未观察到孵化现象。