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United States Department of Agriculture

Agricultural Research Service

Title: Alternatives for Methyl Bromide Fumigation of Tobacco and Tomato Seedbeds.

Authors
item Csinos, A - UNIVERSITY OF GEORGIA
item Sumner, D - UNIVERSITY OF GEORGIA
item Johnson, Alva
item Dowler, Clyde

Submitted to: American Phytopathological Society
Publication Type: Abstract Only
Publication Acceptance Date: May 13, 1999
Publication Date: N/A

Technical Abstract: Metam sodium (MS) alone at 37.3 GPA and in combination with 1,3-D-C-17 (TC-17) at 10 GPA was applied to plots, tarped with 3 ml plastic and allowed to fumigate for 1,2 and 4 wks and aerated for 1 to 10 days, depending on treatment. An additional test evaluated the method of application of the combination treatment of MS + TC-17 on control of fungi, ,weeds and various agronomic parameters. As the length of fumigation time increased, stand counts and vigor ratings of both tobacco and tomato seedlings increased and viability of Rhizoctonia solani, Pythium spp. and other soil fungi decreased. The combination of MS + TC-17 was more phytotoxic than MS alone, but tended to control cutleaf evening primrose, bedstraw, wild radish, henbit, red sorrel and cudweed better. TC-17 + MS applied by chisel injection and sprayer rototiller performed better than when both materials were chisel injected. In 20 of the 26 parameters evaluated, MS + TC-17 was not significantly different from methyl bromide (MeBr). MS + TC-17 was significantly better than MeBr for six of the parameters.

Last Modified: 9/22/2014
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