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United States Department of Agriculture

Agricultural Research Service

Title: Effects of Soil Fumigants and Bioyieldtm on Root-Knot Nematode Incidence and Yield of Tomato

Authors
item Burelle, Nancy
item Dickson, Donald - UNIV. OF FL/IFAS

Submitted to: Proceedings of International Research Conference on Methyl Bromide Alternatives
Publication Type: Proceedings
Publication Acceptance Date: September 9, 2003
Publication Date: November 1, 2003
Citation: Burelle, N.K., Dickson, D.W. 2003. EFFECTS OF SOIL FUMIGANTS AND BIOYIELDTM ON ROOT-KNOT NEMATODE INCIDENCE AND YIELD OF TOMATO. Proceedings of International Research Conference on Methyl Bromide Alternatives. 50:1-50.

Interpretive Summary: Field studies were conducted to evaluate formulations of Telone combined with tomato plants treated with the biological product BioYield for effects on root-knot nematode galling and yield of tomato. Innovations in application methods for Telone products will reduce worker exposure and requirements for personal protective equipment but require additional studies to get acceptable nematode control. In our studies, marketable yield was highest in the methyl bromide treatment compared to all other treatments, and lowest in the untreated control plots. Of the Telone II treatments, prebed application of Telone II with an in-bed application of chloropicrin had higher yields than prebed application of Telone II without an in-bed application of chloropicrin. C-35 and Telone II + chloropicrin had similar yield. There were no significant differences in yield with the addition of BioYield to transplants. However, BioYield significantly reduced root-knot nematode galling in both the control and methyl bromide treatments, but did not reduce galling in Telone treatments.

Technical Abstract: Field studies were conducted to evaluate formulations of 1,3-dichloropropene (Telone) combined with biologically amended transplants for effects on root-knot nematode galling and yield of tomato. Soil-less transplant media amended with BioYieldTM , a formulation of two Gram-positive plant growth-promoting rhizobacteria (PGPR) has shown potential to improve plant vigor, reduced disease severity and increased yield of tomato and pepper. The marketable yield was highest in the methyl bromide treatment compared to all other treatments, and lowest in the untreated control plots. Of the Telone II treatments, prebed application of Telone II with an in-bed application of chloropicrin had significantly higher yields than prebed application of Telone II without an in-bed application of chloropicrin. C-35 and Telone II + chloropicrin had similar yield. There were no significant differences in yield with the addition of BioYield to transplants. However, BioYield significantly reduced root-knot nematode galling in both the control and methyl bromide treatments, but did not reduce galling in Telone treatments.

Last Modified: 10/22/2014
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