Prevalence of pest nematodes associated with soybean ( Glycine max ) in Wisconsin from 1998 to 2021.
| Autor: | MacGuidwin AE; Department of Plant Pathology, 1630 Linden Drive, University of Wisconsin-Madison, Madison, WI 53706., Smith DL; Department of Plant Pathology, 1630 Linden Drive, University of Wisconsin-Madison, Madison, WI 53706., Conley SP; Department of Agronomy, 1575 Linden Drive, University of Wisconsin-Madison, Madison, WI 53706., Saikai KA; Agro-Systems Research, Wageningen University and Research, NL-6708 PB Wageningen, The Netherlands. |
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| Jazyk: | angličtina |
| Zdroj: | Journal of nematology [J Nematol] 2024 Mar 30; Vol. 55 (1), pp. 20230053. Date of Electronic Publication: 2024 Mar 30 (Print Publication: 2023). |
| DOI: | 10.2478/jofnem-2023-0053 |
| Abstrakt: | The prevalence of Heterodera glycines and other cyst and vermiform genera was determined from 8,009 soil samples over two decades. Prevalence of cyst nematodes for farms increased from 16% in 1998 to 1999, reaching a peak of 40%, with marked differences among Wisconsin's nine agricultural districts in how much the odds of a positive test increased. Estimates at the sample scale also increased over time but peaked at 29%. Assay of all nematodes beginning in 2012 showed Pratylenchus , Helicotylenchus , and Xiphinema to be more prevalent in Wisconsin soybean fields than cyst nematodes. Prevalence estimates for Pratylenchus and Helicotylenchus for soybean and rotation crops ranged from 76 to 89% and 58 to 83%, respectively. Species identification of Pratylenchus from a subset of the samples revealed six species. The majority of cyst-positive samples were infested with Pratylenchus , and count data showed that the number of cyst eggs and juveniles per 100 cm 3 soil was 60% lower in samples positive for Pratylenchus . The influence was reciprocal, as Pratylenchus population densities were 41% lower in samples positive for cyst nematodes, suggesting a competitive interaction. The Wisconsin soybean nematode testing program provides a useful model for estimating nematode prevalence using citizen-based surveys. (© 2023 A. E. MacGuidwin et al., published by Sciendo.) |
| Databáze: | MEDLINE |
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