Department of Pesticides, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Ministry of Agriculture , Beijing 100193, People's Republic of China.
J Agric Food Chem. 2014 May 28;62(21):4864-9. doi: 10.1021/jf501255w. Epub 2014 May 19.
The combination of dimethyl disulfide (DMDS) and dazomet (DZ) is a potential alternative to methyl bromide (MB) for soil disinfestation. The efficacy of DMDS plus DZ in controlling key soilborne pests was evaluated in a laboratory study and in two commercial cucumber greenhouses. Laboratory studies found that all of the combinations had positive synergistic effects on root-knot nematodes, two key soilborne fungi, and two major weed seeds. Greenhouse trials revealed that the combination of DMDS and DZ (30 + 25 g m(-2)) successfully suppressed Meloidogyne spp. root galling, sharply reduced the colony-forming units of Fusarium spp. and Phytophthora spp. on media, maintained high cucumber yields, and was not significantly different from MB or DMDS alone, but better than DZ alone. All of the chemical treatments provided significantly better results than the nontreated control. The results indicate that the combination of DMDS and DZ is an efficient MB alternative for cucumber production.
二甲基二硫（DMDS）和棉隆（DZ）的混合物是一种替代甲基溴（MB）进行土壤消毒的潜在选择。DMDS 加 DZ 控制关键土壤传播害虫的功效在实验室研究和两个商业黄瓜温室中进行了评估。实验室研究发现，所有组合对根结线虫、两种关键土壤真菌和两种主要杂草种子均具有积极的增效作用。温室试验表明，DMDS 和 DZ（30 + 25 g m(-2)）的组合成功抑制了根结线虫的根瘤，显著减少了培养基上镰刀菌和疫霉属的菌落形成单位，保持了黄瓜的高产量，与 MB 或 DMDS 单独使用没有显著差异，但优于 DZ 单独使用。所有化学处理的效果都明显优于未处理的对照。结果表明，DMDS 和 DZ 的组合是一种有效的替代 MB 的黄瓜生产方法。
