<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The following work was initiated to determine the scope of application methodology and fumigant combinations for increasing efficacy of 1,3-dichloropropene (1,3-D) and metam sodium for management of root-knot nematodes (<italic>Meloidogyne</italic> spp.) in Florida. A series of five experiments were set up during spring and fall seasons to evaluate the potential of different fumigants, alone or in combination, in polyethylene film tomato production. The most promising chemical alternatives to methyl bromide, in terms of root-knot nematode management, were the combinations 1,3-D-chloropicrin, chloropicrin-proprietary solvent, and 1,3-D-metam sodium. Sprayed or injected metam sodium generally provided only short-term nematode management and by harvest nematode infection was not different from the nontreated control. Drip-applied metam sodium gave good nematode management under high nematode pressure, but needs further verification to establish (i) the importance of soil moisture and temperature on treatment efficacy and (ii) whether similar management can be obtained with fewer than three drip tubes. Broadcast applications of 1,3-D showed better efficacy as compared to applications on a preformed raised bed. Fumigation did not increase tomato yields in spring when root-knot nematode pressure was low, but during fall all chemical treatments increased yields three to five-fold, as root-knot nematode was a major yield-limiting factor.</p>
</abstract>

The following work was initiated to determine the scope of application methodology and fumigant combinations for increasing efficacy of 1,3-dichloropropene (1,3-D) and metam sodium for management of root-knot nematodes (Meloidogyne spp.) in Florida. A series of five experiments were set up during spring and fall seasons to evaluate the potential of different fumigants, alone or in combination, in polyethylene film tomato production. The most promising chemical alternatives to methyl bromide, in terms of root-knot nematode management, were the combinations 1,3-D-chloropicrin, chloropicrin-proprietary solvent, and 1,3-D-metam sodium. Sprayed or injected metam sodium generally provided only short-term nematode management and by harvest nematode infection was not different from the nontreated control. Drip-applied metam sodium gave good nematode management under high nematode pressure, but needs further verification to establish (i) the importance of soil moisture and temperature on treatment efficacy and (ii) whether similar management can be obtained with fewer than three drip tubes. Broadcast applications of 1,3-D showed better efficacy as compared to applications on a preformed raised bed. Fumigation did not increase tomato yields in spring when root-knot nematode pressure was low, but during fall all chemical treatments increased yields three to five-fold, as root-knot nematode was a major yield-limiting factor.

Methyl Bromide Alternatives for Control of Root-knot Nematode (<italic>Meloidogyne</italic> spp.) in Tomato Production in Florida

Journal of Nematology

This work is licensed under the Creative Commons Attribution 4.0 International License.

Methyl Bromide Alternatives for Control of Root-knot Nematode ( spp.) in Tomato Production in Florida

The following work was initiated to determine the scope of application methodology and fumigant combinations for increasing efficacy of 1,3-dichloropropene...

Methyl Bromide Alternatives for Control of Root-knot Nematode (Meloidogyne spp.) in Tomato Production in Florida

Published Online: Jul 24, 2017

Page range: 140 - 149

Received: Aug 23, 2016

DOI: https://doi.org/10.21307/jofnem-2017-058

Keywords
1, 3-dichloropropene, metam sodium, fumigation, plasticulture

© 2017 Johan Desaeger et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Methyl Bromide Alternatives for Control of Root-knot Nematode (Meloidogyne spp.) in Tomato Production in Florida

Published Online: Jul 24, 2017

Page range: 140 - 149

Received: Aug 23, 2016

DOI: https://doi.org/10.21307/jofnem-2017-058

Keywords1, 3-dichloropropene, metam sodium, fumigation, plasticulture

© 2017 Johan Desaeger et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
1, 3-dichloropropene, metam sodium, fumigation, plasticulture