Evaluating nutsedge control (cyperus spp.) With various formulations and rates of 1,3-dichloropropene chemigated using drip tape under two polyethylene mulches

Robert C. Hochmuth, Wayne E. Davis, William M. Stall, Eric H. Simonne, Anthony W. Weiss


Plasticulture is important to the success of the vegetable industry in Florida. Soil fumigation using methyl bromide and chloropicrin has been a standard. Due to the phase out of methyl bromide in 2005, effective alternatives to methyl bromide are needed to maintain profitability in vegetable production using plasticulture. The soil fumigant, 1,3-dichloropropene, has been at the focus of research for alternatives to methyl bromide in Florida. This study was conducted to evaluate the effectiveness of various formulations and rates of 1,3-dichloropropene and chloropicrin when chemigated into a drip irrigation system for the control of nutsedge using two types of polyethylene mulch. Significantly fewer nutsedges emerged through the VIF film compared with the low-density film when the soil was treated with InLine at both rates and when Telone C-35 was injected into the soil. No differences in nutsedge emergence were observed between the two mulches when no fumigant was used or when Telone EC was applied at 14 gallons/acre.


cyperus esculentus; cyperus rotundus; virtually impermeable film; telone c-35; inline; plasticulture; soil fumigation; methyl bromide alternatives

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Proc. Fla. State Hort. Soc.     ISSN 0886-7283