Department of Pesticide, Key Laboratory of Pesticide Chemistry and Application, Plant Protection Institute of Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing, People's Republic of China.
Pest Manag Sci. 2012 Apr;68(4):602-9. doi: 10.1002/ps.2303. Epub 2012 Jan 6.
The combination of 1,3-dichloropropene (1,3-D) and dazomet (DZ) offers a potential alternative to methyl bromide (MB) for soil disinfection. MB is scheduled to be withdrawn from routine use by 2015 in developing countries. Combination treatments of 1,3-D + DZ were evaluated in a laboratory study and in two commercial cucumber fields.
Laboratory studies found that nearly all of the tested combinations of 1,3-D and DZ displayed positive synergistic activity on root-knot nematodes (Meloidogyne spp.), two major soilborne fungi (Fusarium spp. and Phytophthora spp.) and the seeds of two major weed species (Digitaria sanguinalis and Abutilon theophrasti). Field trials revealed that the combination of 1,3-D and DZ (at 10 + 25 g m(-2) ) successfully suppressed Meloidogyne spp. root galling, sharply reduced Fusarium spp. and Phytophthora spp. and maintained high cucumber yields. The combination treatment of 1,3-D + DZ was more effective than 1,3-D or DZ alone and provided results similar to methyl bromide with respect to pest control, plant mortality, plant height, yield and income. All of the treatments were significantly better than the non-treated control.
The results indicate that the tested combination of 1,3-D and DZ offers an efficient alternative to methyl bromide for cucumber production.
1,3-二氯丙烯（1,3-D）和威百亩（DZ）的组合为土壤消毒提供了一种替代甲基溴（MB）的潜在选择。到 2015 年，发展中国家将停止常规使用 MB。本研究在实验室和两个商业化的黄瓜田中评估了 1,3-D+DZ 的联合处理。
实验室研究发现，1,3-D 和 DZ 的几乎所有测试组合对根结线虫（Meloidogyne spp.）、两种主要土壤真菌（镰刀菌属和疫霉属）以及两种主要杂草种子（狗牙根和苘麻）都表现出积极的增效活性。田间试验表明，1,3-D 和 DZ（10+25 g m(-2)）的联合处理成功抑制了根结线虫的根瘤，显著减少了镰刀菌属和疫霉属的数量，并保持了较高的黄瓜产量。1,3-D+DZ 的联合处理比 1,3-D 或 DZ 单独处理更有效，在防治病虫害、植物死亡率、株高、产量和收入方面与甲基溴的效果相似。所有处理均明显优于未处理对照。
结果表明，1,3-D 和 DZ 的联合处理为黄瓜生产提供了一种替代甲基溴的有效方法。
