Bernard Ernest C, Chaffin Angel G, Gwinn Kimberly D
Entomology and Plant Pathology, The University of Tennessee, 370 Plant Biotechnology, Building, 2505 E J Chapman Drive, Knoxville, TN 37996-4560.
Pope's Plant Farm, Maryville, TN.
J Nematol. 2022 Feb 18;54(1). doi: 10.21307/jofnem-2022-002. eCollection 2022.
The many decades during which the cultivation of (hemp) was strongly restricted by law resulted in little research on potential pathogenic nematodes of this increasingly important crop. The primary literature was searched for hemp-nematode papers, resulting in citations from 1890 through 2021. Reports were grouped into two categories: (i) nematodes as phytoparasites of hemp, and (ii) hemp and hemp products and extracts for managing nematode pests. Those genera with the most citations as phytoparasites were (root-knot nematodes, 20 papers), (lesion nematodes, 7) and (stem nematodes, 7). Several spp. were shown to reproduce on hemp and some field damage has been reported. Experiments with (hop cyst nematode) were contradictory. Twenty-three papers have been published on the effects of hemp and hemp products on plant-parasitic, animal-parasitic and microbivorous species. The effects of hemp tissue soil incorporation were studied in five papers; laboratory or glasshouse experiments with aqueous or ethanol extracts of hemp leaves accounted for most of the remainder. Many of these treatments had promising results but no evidence was found of large-scale implementation. The primary literature was also searched for chemistry of roots. The most abundant chemicals were classified as phytosterols and triterpenoids. Cannabinoid concentration was frequently reported due to the interest in medicinal . Literature on the impact of root-associated chemicals on plant parasitic nematodes was also searched; in cases where there were no reports, impacts on free-living or animal parasitic nematodes were discussed.
几十年来，（大麻）种植一直受到法律的严格限制，这导致对这种日益重要的作物潜在致病线虫的研究很少。我们检索了主要文献中的大麻线虫相关论文，得到了1890年至2021年的文献引用。报告分为两类：（i）线虫作为大麻的植物寄生虫，（ii）大麻及大麻产品和提取物用于防治线虫害虫。作为植物寄生虫被引用最多的属是（根结线虫，20篇论文）、（损伤线虫，7篇）和（茎线虫，7篇）。有几种线虫被证明能在大麻上繁殖，并且有一些田间损害的报告。（啤酒花孢囊线虫）的实验结果相互矛盾。关于大麻及大麻产品对植物寄生、动物寄生和食微生物物种的影响，已发表了23篇论文。五篇论文研究了大麻组织混入土壤的效果；其余大部分是关于大麻叶水提取物或乙醇提取物的实验室或温室实验。许多这些处理都取得了有前景的结果，但没有发现大规模实施的证据。我们还检索了主要文献中关于大麻根化学的内容。最丰富的化学物质被归类为植物甾醇和三萜类化合物。由于对药用大麻的兴趣，大麻素浓度经常被报道。我们也检索了关于根相关化学物质对植物寄生线虫影响的文献；在没有相关报告的情况下，讨论了对自由生活或动物寄生线虫的影响。
