MacGuidwin A E, Smith D L, Conley S P, Saikai K A
Department of Plant Pathology, 1630 Linden Drive, University of Wisconsin-Madison, Madison, WI 53706.
Department of Agronomy, 1575 Linden Drive, University of Wisconsin-Madison, Madison, WI 53706.
J Nematol. 2024 Mar 30;55(1):20230053. doi: 10.2478/jofnem-2023-0053. eCollection 2023 Feb.
The prevalence of 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 , , and to be more prevalent in Wisconsin soybean fields than cyst nematodes. Prevalence estimates for and for soybean and rotation crops ranged from 76 to 89% and 58 to 83%, respectively. Species identification of from a subset of the samples revealed six species. The majority of cyst-positive samples were infested with , and count data showed that the number of cyst eggs and juveniles per 100 cm soil was 60% lower in samples positive for . The influence was reciprocal, as 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.
在二十多年间，从8009份土壤样本中测定了[具体线虫名称]及其他囊肿和蠕虫类属的流行情况。农场中囊肿线虫的流行率从1998年至1999年的16%上升至峰值40%，威斯康星州的九个农业区在检测呈阳性几率的增加幅度上存在显著差异。样本规模的估计值也随时间增加，但在29%时达到峰值。从2012年开始对所有线虫进行检测表明，[具体线虫名称]、[具体线虫名称]和[具体线虫名称]在威斯康星州大豆田中比囊肿线虫更为普遍。大豆和轮作作物中[具体线虫名称]和[具体线虫名称]的流行率估计分别为76%至89%和58%至83%。对部分样本中的[具体线虫名称]进行物种鉴定发现了六个物种。大多数囊肿呈阳性的样本感染了[具体线虫名称]，计数数据显示，在[具体线虫名称]呈阳性的样本中，每100厘米土壤中的囊肿卵和幼虫数量低60%。这种影响是相互的，因为在囊肿线虫呈阳性的样本中，[具体线虫名称]的种群密度低41%，这表明存在竞争相互作用。威斯康星州大豆线虫检测计划为利用基于公民的调查来估计线虫流行情况提供了一个有用的模型。
