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- Title
Evaluation of the combination of 1,3-dichloropropene and dazomet as an efficient alternative to methyl bromide for cucumber production in China.
- Authors
Mao, Lian-Gang; Wang, Qiu-Xia; Yan, Dong-Dong; Xie, Hong-Wei; Li, Yuan; Guo, Mei-Xia; Cao, Ao-Cheng
- Abstract
BACKGROUND: 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 MB is scheduled to be withdrawn from routine use by 2015 in developing countries.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. RESULTS: 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. CONCLUSION: The results indicate that the tested combination of 1,3-D and DZ offers an efficient alternative to methyl bromide for cucumber production. Copyright © 2012 Society of Chemical Industry
- Subjects
DAZOMET; BROMOMETHANE; SOIL disinfection; CUCUMBER diseases &; pests; ROOT-knot nematodes; PHYTOPHTHORA diseases; FUSARIOSIS; THERAPEUTICS
- Publication
Pest Management Science, 2012, Vol 68, Issue 4, p602
- ISSN
1526-498X
- Publication type
Article
- DOI
10.1002/ps.2303