<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Plant-parasitic and free-living nematodes – bacterivores, fungivores, omnivores, predators – comprise the nematode community. Nematicide application and crop rotation are important tools to manage plant-parasitic nematodes, but effects on free-living nematodes and nematode ecological indices need further study. The nematicide fluopyram was recently introduced in cotton (<italic>Gossypium hirsutum</italic>) production and its effects on the nematode community need assessment. This research was conducted in 2017 and 2018 at a long-term field site in Quincy, FL where perennial grass/sod-based (bahiagrass, <italic>Paspalum notatum</italic>) and conventional cotton rotations were established in 2000. The objective of this research was to evaluate the effects of fluopyram nematicide, crop rotation phase, and irrigation on free-living nematodes and nematode ecological indices based on three soil sampling dates each season. We did not observe consistent effects of crop rotation phase on free-living nematodes or nematode ecological indices. Only omnivores were consistently negatively impacted by fluopyram. Nematode ecological indices reflected this negative effect by exhibiting a degraded/ stressed environmental condition relative to untreated plots. Free-living nematodes were not negatively impacted by nematicide when sod-based rotation was used.</p></abstract>

Plant-parasitic and free-living nematodes – bacterivores, fungivores, omnivores, predators – comprise the nematode community. Nematicide application and crop rotation are important tools to manage plant-parasitic nematodes, but effects on free-living nematodes and nematode ecological indices need further study. The nematicide fluopyram was recently introduced in cotton (Gossypium hirsutum) production and its effects on the nematode community need assessment. This research was conducted in 2017 and 2018 at a long-term field site in Quincy, FL where perennial grass/sod-based (bahiagrass, Paspalum notatum) and conventional cotton rotations were established in 2000. The objective of this research was to evaluate the effects of fluopyram nematicide, crop rotation phase, and irrigation on free-living nematodes and nematode ecological indices based on three soil sampling dates each season. We did not observe consistent effects of crop rotation phase on free-living nematodes or nematode ecological indices. Only omnivores were consistently negatively impacted by fluopyram. Nematode ecological indices reflected this negative effect by exhibiting a degraded/ stressed environmental condition relative to untreated plots. Free-living nematodes were not negatively impacted by nematicide when sod-based rotation was used.

Effects of Grass-Based Crop Rotation, Nematicide, and Irrigation on the Nematode Community in Cotton

Journal of Nematology

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

Plant-parasitic and free-living nematodes – bacterivores, fungivores, omnivores, predators – comprise the nematode community. Nematicide application and crop...

Effects of Grass-Based Crop Rotation, Nematicide, and Irrigation on the Nematode Community in Cotton

Article Category: Research Paper

Published Online: Oct 29, 2022

Page range: -

Received: Jun 30, 2022

DOI: https://doi.org/10.2478/jofnem-2022-0046

Keywords
bahiagrass, cotton, crop rotation, ecology, fluopyram, free-living nematodes, irrigation, nematicide, nematode community,

© 2022 Schumacher et al., published by Sciendo

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

Effects of Grass-Based Crop Rotation, Nematicide, and Irrigation on the Nematode Community in Cotton

Article Category: Research Paper

Published Online: Oct 29, 2022

Page range: -

Received: Jun 30, 2022

DOI: https://doi.org/10.2478/jofnem-2022-0046

Keywordsbahiagrass, cotton, crop rotation, ecology, fluopyram, free-living nematodes, irrigation, nematicide, nematode community,

© 2022 Schumacher et al., published by Sciendo

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

Keywords
bahiagrass, cotton, crop rotation, ecology, fluopyram, free-living nematodes, irrigation, nematicide, nematode community,