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

<italic>Meloidogyne incognita</italic>- and <italic>Rotylenchulus reniformis</italic>-resistant new cotton cultivars have recently become available, giving growers a new option in nematode management. The objectives of this study were: (i) to determine the yield potential of the new cultivars PHY 360 W3FE (<italic>M. incognita</italic>-resistant) and PHY 332 W3FE (<italic>R. reniformis</italic>-resistant) in nematode-infested fields and (ii) to evaluate the effects of combining the nematicides Reklemel (fluazaindolizine), Vydate C-LV (oxamyl), and the seed treatment BIOST Nematicide 100 (heat killed <italic>Burkholderia rinojenses</italic> and its non-living spent fermentation media) with resistant cotton cultivars on nematode population levels and lint yield. Field experiments in 2020 and 2021 indicated <italic>M. incognita</italic> population levels were 73% lower on PHY 360 W3FE (R) and 80% lower for <italic>R. reniformis</italic> on the PHY 332 W3FE (R) at 40 days after planting. Nematode eggs per gram of root were further reduced an average of 86% after the addition of Reklemel and Vydate C-LV when averaging both cultivars over the two years. Tests with BIOST Nematicide 100 + Reklemel + Vydate C-LV (0.56 + 2.5 L/ha) in both <italic>M. incognita</italic> and <italic>R. reniformis</italic> fields produced higher lint yields. Overall, planting PHY 360 W3FE (R) and PHY 332 W3FE (R) improved yields an average of 364 kg/ha while limiting nematode population increases. The addition of the nematicides further increased yields 152 kg/ha of the nematode-resistant cultivars.</abstract>

Meloidogyne incognita- and Rotylenchulus reniformis-resistant new cotton cultivars have recently become available, giving growers a new option in nematode management. The objectives of this study were: (i) to determine the yield potential of the new cultivars PHY 360 W3FE (M. incognita-resistant) and PHY 332 W3FE (R. reniformis-resistant) in nematode-infested fields and (ii) to evaluate the effects of combining the nematicides Reklemel (fluazaindolizine), Vydate C-LV (oxamyl), and the seed treatment BIOST Nematicide 100 (heat killed Burkholderia rinojenses and its non-living spent fermentation media) with resistant cotton cultivars on nematode population levels and lint yield. Field experiments in 2020 and 2021 indicated M. incognita population levels were 73% lower on PHY 360 W3FE (R) and 80% lower for R. reniformis on the PHY 332 W3FE (R) at 40 days after planting. Nematode eggs per gram of root were further reduced an average of 86% after the addition of Reklemel and Vydate C-LV when averaging both cultivars over the two years. Tests with BIOST Nematicide 100 + Reklemel + Vydate C-LV (0.56 + 2.5 L/ha) in both M. incognita and R. reniformis fields produced higher lint yields. Overall, planting PHY 360 W3FE (R) and PHY 332 W3FE (R) improved yields an average of 364 kg/ha while limiting nematode population increases. The addition of the nematicides further increased yields 152 kg/ha of the nematode-resistant cultivars.

Evaluation of <italic>Meloidogyne incognita</italic> and <italic>Rotylenchulus reniformis</italic> nematode-resistant cotton cultivars with supplemental Corteva Agriscience nematicides

Journal of Nematology

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

Evaluation of  and  nematode-resistant cotton cultivars with supplemental Corteva Agriscience nematicides

Meloidogyne incognita- and Rotylenchulus reniformis-resistant new cotton cultivars have recently become available, giving growers a new option in nematode...

Evaluation of Meloidogyne incognita and Rotylenchulus reniformis nematode-resistant cotton cultivars with supplemental Corteva Agriscience nematicides

Article Category: Research Paper

Published Online: Feb 17, 2023

Page range: -

Received: Aug 06, 2022

DOI: https://doi.org/10.2478/jofnem-2023-0001

Keywords
cotton, integrated nematode management, root-knot nematode, reniform nematode

© 2023 Turner et al., published by Sciendo

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

Evaluation of Meloidogyne incognita and Rotylenchulus reniformis nematode-resistant cotton cultivars with supplemental Corteva Agriscience nematicides

Article Category: Research Paper

Published Online: Feb 17, 2023

Page range: -

Received: Aug 06, 2022

DOI: https://doi.org/10.2478/jofnem-2023-0001

Keywordscotton, integrated nematode management, root-knot nematode, reniform nematode

© 2023 Turner et al., published by Sciendo

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

Keywords
cotton, integrated nematode management, root-knot nematode, reniform nematode