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

<p>The eradication program for the potato cyst nematode (PCN), <italic>Globodera pallida</italic>, in the Northwest of the United States revolves around the use of soil fumigation. Alternative, integrated strategies are needed to continue to battle this invasive nematode. Laboratory, greenhouse, and field experiments were conducted with <italic>G. pallida</italic> and another cyst nematode found in the United States, <italic>Globodera ellingtonae</italic>, to evaluate the efficacy of a new formulated <italic>Brassica juncea</italic> seed meal extract, as well as a traditional <italic>B. juncea</italic> seed meal, as alternate eradication strategies. This is the first report on the efficacy of <italic>B. juncea</italic> seed meal extract against plant-parasitic nematodes. Rates of <italic>B. juncea</italic> seed meal greater than 2.2 t/ha and 4.5 t/ha for <italic>G. pallida</italic> and <italic>G. ellingtonae</italic>, respectively, were required for egg hatch suppression, as determined by a potato root diffusate (PRD) bioassay. Reproduction of <italic>G. pallida</italic> on potato after exposure to <italic>B. juncea</italic> seed meal at a rate of 2.2 t/ha was also significantly reduced. In the field, 8.9 t/ha <italic>B. juncea</italic> seed meal almost eliminated egg hatch of <italic>G. ellingtonae</italic>. Rates needed for <italic>Globodera</italic> spp. suppression were greatly reduced when using the <italic>B. juncea</italic> seed meal extract. When compared side-by-side, half as much <italic>B. juncea</italic> seed meal extract, 1.1 t/ha, was required to suppress <italic>G. ellingtonae</italic> egg hatch to the same extent as <italic>B. juncea</italic> seed meal. Exposure of <italic>G. pallida</italic> to <italic>B. juncea</italic> seed meal extract at 4.5 t/ha reduced egg hatch by 90% compared with a nonamended control. The ability to reduce the amount of material being applied to soil by using an extract has the potential for integration into a <italic>G. pallida</italic> eradication program.</p>
</abstract>

The eradication program for the potato cyst nematode (PCN), Globodera pallida, in the Northwest of the United States revolves around the use of soil fumigation. Alternative, integrated strategies are needed to continue to battle this invasive nematode. Laboratory, greenhouse, and field experiments were conducted with G. pallida and another cyst nematode found in the United States, Globodera ellingtonae, to evaluate the efficacy of a new formulated Brassica juncea seed meal extract, as well as a traditional B. juncea seed meal, as alternate eradication strategies. This is the first report on the efficacy of B. juncea seed meal extract against plant-parasitic nematodes. Rates of B. juncea seed meal greater than 2.2 t/ha and 4.5 t/ha for G. pallida and G. ellingtonae, respectively, were required for egg hatch suppression, as determined by a potato root diffusate (PRD) bioassay. Reproduction of G. pallida on potato after exposure to B. juncea seed meal at a rate of 2.2 t/ha was also significantly reduced. In the field, 8.9 t/ha B. juncea seed meal almost eliminated egg hatch of G. ellingtonae. Rates needed for Globodera spp. suppression were greatly reduced when using the B. juncea seed meal extract. When compared side-by-side, half as much B. juncea seed meal extract, 1.1 t/ha, was required to suppress G. ellingtonae egg hatch to the same extent as B. juncea seed meal. Exposure of G. pallida to B. juncea seed meal extract at 4.5 t/ha reduced egg hatch by 90% compared with a nonamended control. The ability to reduce the amount of material being applied to soil by using an extract has the potential for integration into a G. pallida eradication program.

Control of <italic>Globodera</italic> spp. Using <italic>Brassica juncea</italic> Seed Meal and Seed Meal Extract

Journal of Nematology

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

Control of  spp. Using  Seed Meal and Seed Meal Extract

The eradication program for the potato cyst nematode (PCN), Globodera pallida, in the Northwest of the United States revolves around the use of soil...

Control of Globodera spp. Using Brassica juncea Seed Meal and Seed Meal Extract

Published Online: Sep 26, 2018

Page range: 437 - 445

Received: Apr 08, 2017

DOI: https://doi.org/10.21307/jofnem-2017-093

Keywords
brassica, spp., glucosinolate, isothiocyanate, potato cyst nematode, yellow mustard

© 2017 LOUISE-MARIE DANDURAND et al., published by Sciendo

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

Control of Globodera spp. Using Brassica juncea Seed Meal and Seed Meal Extract

Published Online: Sep 26, 2018

Page range: 437 - 445

Received: Apr 08, 2017

DOI: https://doi.org/10.21307/jofnem-2017-093

Keywordsbrassica, spp., glucosinolate, isothiocyanate, potato cyst nematode, yellow mustard

© 2017 LOUISE-MARIE DANDURAND et al., published by Sciendo

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

Keywords
brassica, spp., glucosinolate, isothiocyanate, potato cyst nematode, yellow mustard