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

<p>Plant-parasitic nematodes (PPNs) can cause substantial economic yield losses to many agronomic crops in the United States. A regional-scale survey was completed across 20 counties to determine PPNs prevalence in Michigan corn and how factors such as soil type, tillage, irrigation, and cropping systems influence their distribution. Ten different major genera of PPNs were identified in Michigan corn fields: <italic>Longidorus</italic> (needle), <italic>Helicotylenchus</italic> (spiral), <italic>Pratylenchus</italic> (lesion), <italic>Meloidogyne</italic> (root-knot), <italic>Heterodera</italic> (cyst), <italic>Hoplolaimus</italic> (lance), <italic>Tylenchorhynchus</italic> or <italic>Merlinius</italic> (stunt), <italic>Paratylenchus</italic> (pin), <italic>Criconemella</italic> (ring), and <italic>Xiphinema</italic> (dagger). No significant differences among different categories of tillage for lesion, stunt, or needle nematode prevalence was detected. Lesion nematodes were most prevalent in muck soil, while stunt nematode prevalence was significantly affected by the soil type. Needle nematodes were least abundant in irrigated soils and in contrast, stunt nematodes were higher in non-irrigated soils. Spiral nematodes were the most common PPNs in Michigan corn in all cropping systems. These findings will be helpful in planning future nematode studies in Michigan and in developing and evaluating corn nematode management strategies.</p>
</abstract>

Plant-parasitic nematodes (PPNs) can cause substantial economic yield losses to many agronomic crops in the United States. A regional-scale survey was completed across 20 counties to determine PPNs prevalence in Michigan corn and how factors such as soil type, tillage, irrigation, and cropping systems influence their distribution. Ten different major genera of PPNs were identified in Michigan corn fields: Longidorus (needle), Helicotylenchus (spiral), Pratylenchus (lesion), Meloidogyne (root-knot), Heterodera (cyst), Hoplolaimus (lance), Tylenchorhynchus or Merlinius (stunt), Paratylenchus (pin), Criconemella (ring), and Xiphinema (dagger). No significant differences among different categories of tillage for lesion, stunt, or needle nematode prevalence was detected. Lesion nematodes were most prevalent in muck soil, while stunt nematode prevalence was significantly affected by the soil type. Needle nematodes were least abundant in irrigated soils and in contrast, stunt nematodes were higher in non-irrigated soils. Spiral nematodes were the most common PPNs in Michigan corn in all cropping systems. These findings will be helpful in planning future nematode studies in Michigan and in developing and evaluating corn nematode management strategies.

Distribution of Plant-Parasitic Nematodes in Michigan Corn Fields

Journal of Nematology

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

{"article-title":"Distribution of Plant-Parasitic Nematodes in Michigan Corn Fields"}

Plant-parasitic nematodes (PPNs) can cause substantial economic yield losses to many agronomic crops in the United States. A regional-scale survey was...

Distribution of Plant-Parasitic Nematodes in Michigan Corn Fields

Article Category: Research paper

Published Online: May 02, 2023

Page range: -

Received: Jul 11, 2022

DOI: https://doi.org/10.2478/jofnem-2023-0015

Keywords
corn nematodes, detection, Michigan corn nematode identification, plant-parasitic nematode survey

© 2023 Thapa et al., published by Sciendo

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

Distribution of Plant-Parasitic Nematodes in Michigan Corn Fields

Article Category: Research paper

Published Online: May 02, 2023

Page range: -

Received: Jul 11, 2022

DOI: https://doi.org/10.2478/jofnem-2023-0015

Keywordscorn nematodes, detection, Michigan corn nematode identification, plant-parasitic nematode survey

© 2023 Thapa et al., published by Sciendo

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

Keywords
corn nematodes, detection, Michigan corn nematode identification, plant-parasitic nematode survey