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

<p>Soybean Cyst Nematode (SCN), <italic>Heterodera glycines</italic> Ichinohe, is the most important pathogen of soybean in the Mid-Atlantic region. In recent decades, a decline in the effectiveness of genetic resistance has been observed and additional management approaches are needed. Seed treatments are of rising interest, but no local data on product response exists for the region. In 2020–2021, two experiments were conducted to observe the effects of chemical and biological seed treatment options. In one experiment, chemical seed treatments pydiflumetofen (Saltro®) and fluopyram (ILEVO®) were screened against nontreated plain seed for SCN suppression. In a second experiment, pydiflumetofen, fluopyram and four biological nematode-protectant seed treatments with a standard base insecticide and fungicide treatment were compared to nontreated plain seed and seed with only the standard base treatment to test product efficacy against SCN. Seed treatments increased the percent emergence over plain seed. Nematode reproductive factors and female counts from roots were collected, but did not statistically differ between seed treatments or plain seed. Yield differences were observed in one of the five trials, where pydiflumetofen + base seed treatment yielded the highest (<italic>p</italic> &lt; 0.001) at 3813.1 kg/ha. Response from seed treatments varied, with no specific seed treatment consistently reducing SCN populations or increasing yield across trials. Seed treatments may have potential as an element of an integrated management approach for SCN.</p>
</abstract>

Soybean Cyst Nematode (SCN), Heterodera glycines Ichinohe, is the most important pathogen of soybean in the Mid-Atlantic region. In recent decades, a decline in the effectiveness of genetic resistance has been observed and additional management approaches are needed. Seed treatments are of rising interest, but no local data on product response exists for the region. In 2020–2021, two experiments were conducted to observe the effects of chemical and biological seed treatment options. In one experiment, chemical seed treatments pydiflumetofen (Saltro®) and fluopyram (ILEVO®) were screened against nontreated plain seed for SCN suppression. In a second experiment, pydiflumetofen, fluopyram and four biological nematode-protectant seed treatments with a standard base insecticide and fungicide treatment were compared to nontreated plain seed and seed with only the standard base treatment to test product efficacy against SCN. Seed treatments increased the percent emergence over plain seed. Nematode reproductive factors and female counts from roots were collected, but did not statistically differ between seed treatments or plain seed. Yield differences were observed in one of the five trials, where pydiflumetofen + base seed treatment yielded the highest (p < 0.001) at 3813.1 kg/ha. Response from seed treatments varied, with no specific seed treatment consistently reducing SCN populations or increasing yield across trials. Seed treatments may have potential as an element of an integrated management approach for SCN.

Seed Treatments for Management of Soybean Cyst Nematode, <italic>Heterodera glycines</italic>, in Mid-Atlantic Soybean Production

Journal of Nematology

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

Seed Treatments for Management of Soybean Cyst Nematode, , in Mid-Atlantic Soybean Production

Soybean Cyst Nematode (SCN), Heterodera glycines Ichinohe, is the most important pathogen of soybean in the Mid-Atlantic region. In recent decades, a decline...

Seed Treatments for Management of Soybean Cyst Nematode, Heterodera glycines, in Mid-Atlantic Soybean Production

Article Category: Research Paper

Published Online: Aug 01, 2023

Page range: -

Received: Dec 22, 2022

DOI: https://doi.org/10.2478/jofnem-2023-0026

Keywords
biological control, seed treatment, soybean cyst nematode, soybean management

© 2023 Alexandra C. Kessler et al., published by Sciendo

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

Seed Treatments for Management of Soybean Cyst Nematode, Heterodera glycines, in Mid-Atlantic Soybean Production

Article Category: Research Paper

Published Online: Aug 01, 2023

Page range: -

Received: Dec 22, 2022

DOI: https://doi.org/10.2478/jofnem-2023-0026

Keywordsbiological control, seed treatment, soybean cyst nematode, soybean management

© 2023 Alexandra C. Kessler et al., published by Sciendo

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

Keywords
biological control, seed treatment, soybean cyst nematode, soybean management