Evaluation of Soil Fumigants Applied by Drip Irrigation for Liatris Production

Plant Disease
James S Gerik

Abstract

Cut-flower growers need alternatives to methyl bromide (MB) for pathogen and weed control. The efficacy of alternative chemicals applied by drip irrigation was tested in a cut-flower production system. In 2002, seven chemical formulations were tested: chloropicrin, iodomethane + chloropicrin, 1,3-dichloropropene + chloropicrin, sodium azide, metham sodium, furfural + allyl isothiocyanate, and furfural + metham sodium. In 2003, an additional treatment, dimethyl disulfide, was added. Most treatments reduced populations of Pythium ultimum and Fusarium oxysporum and increased stem height compared with the nontreated controls. Metham sodium, furfural + metham sodium, sodium azide, and chloropicrin significantly reduced incidence of Liatris stem rot caused by Sclerotinia sclerotiorum. Weed control was not acceptable either year for any treatments. Viable alternatives to MB for cut-flower production will require better treatments for weed control than was achieved in this study.

References

Oct 24, 2008·Phytopathology·H A AjwaD Shatley

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Citations

Jul 3, 2019·FEMS Microbiology Ecology·Wietse de BoerPaolina Garbeva
Oct 3, 2018·Journal of Environmental Quality·Wensheng FangAocheng Cao
May 11, 2012·Pest Management Science·Chien-Jui HuangChao-Ying Chen
Apr 12, 2011·Pest Management Science·James S Gerik, Bradley D Hanson
Mar 16, 2019·Frontiers in Microbiology·Simon CaulierJacques Mahillon
Jun 22, 2020·Journal of the Science of Food and Agriculture·Jonas VandickeGeert Haesaert
May 4, 2012·Journal of Agricultural and Food Chemistry·Dongdong YanAocheng Cao

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