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

<p>Fluopyram, a succinate dehydrogenase inhibitor fungicide, has shown potential in controlling <italic>Meloidogyne incognita</italic> and <italic>Rotylenchus reniformis</italic> in tomato. The effectiveness of this compound for the control of <italic>Ditylenchus dipsaci</italic> in sugar beet was evaluated. In this study, laboratory, growth chamber, glasshouse, and field experiments were conducted. In a motility bioassay, the EC<sub>50</sub> value was determined with 3.00 μg/ml a.i. after 72 h exposure to fluopyram. The growth chamber experiment did not show any effects on <italic>D. dipsaci</italic> penetration rate; however, field experiments revealed a positive effect of fluopyram applied at planting in reducing <italic>D. dipsaci</italic> infectivity. The glasshouse experiment confirmed a limited effect of fluopyram on <italic>D. dipsaci</italic> population development. Under field conditions, despite a reduction of <italic>D. dipsaci</italic> penetration rates in spring, fluopyram was not effective in reducing the population development until harvest. Consequently, <italic>D. dipsaci</italic> densities in plant tissue and soil were high at harvest and not different among treatments. However, root-rot symptoms were significantly reduced at harvest. Fluopyram applied at planting showed good potential to reduce root-rot symptoms caused by <italic>D. dipsaci</italic> in sugar beet. However, for the long-term reduction of nematode populations in soil, further integrated control measures are needed to reduce the risks of substantial yield losses by <italic>D. dipsaci</italic>.</p>
</abstract>

Fluopyram, a succinate dehydrogenase inhibitor fungicide, has shown potential in controlling Meloidogyne incognita and Rotylenchus reniformis in tomato. The effectiveness of this compound for the control of Ditylenchus dipsaci in sugar beet was evaluated. In this study, laboratory, growth chamber, glasshouse, and field experiments were conducted. In a motility bioassay, the EC50 value was determined with 3.00 μg/ml a.i. after 72 h exposure to fluopyram. The growth chamber experiment did not show any effects on D. dipsaci penetration rate; however, field experiments revealed a positive effect of fluopyram applied at planting in reducing D. dipsaci infectivity. The glasshouse experiment confirmed a limited effect of fluopyram on D. dipsaci population development. Under field conditions, despite a reduction of D. dipsaci penetration rates in spring, fluopyram was not effective in reducing the population development until harvest. Consequently, D. dipsaci densities in plant tissue and soil were high at harvest and not different among treatments. However, root-rot symptoms were significantly reduced at harvest. Fluopyram applied at planting showed good potential to reduce root-rot symptoms caused by D. dipsaci in sugar beet. However, for the long-term reduction of nematode populations in soil, further integrated control measures are needed to reduce the risks of substantial yield losses by D. dipsaci.

Evaluation of fluopyram for the control of <italic>Ditylenchus dipsaci</italic> in sugar beet

Journal of Nematology

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

Evaluation of fluopyram for the control of  in sugar beet

running-head

Fluopyram, a succinate dehydrogenase inhibitor fungicide, has shown potential in controlling Meloidogyne incognita and Rotylenchus reniformis in tomato. The...

Evaluation of fluopyram for the control of Ditylenchus dipsaci in sugar beet

Online veröffentlicht: 28. Juli 2020

Seitenbereich: 1 - 10

DOI: https://doi.org/10.21307/jofnem-2020-071

Schlüsselwörter
Fluopyram, Management, Nematicide, Nematode control, Plant-parasitic nematode, Sugar beet

© 2020 Alan Storelli et al., published by Sciendo

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

Evaluation of fluopyram for the control of Ditylenchus dipsaci in sugar beet

Online veröffentlicht: 28. Juli 2020

Seitenbereich: 1 - 10

DOI: https://doi.org/10.21307/jofnem-2020-071

SchlüsselwörterFluopyram, Management, Nematicide, Nematode control, Plant-parasitic nematode, Sugar beet

© 2020 Alan Storelli et al., published by Sciendo

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

Schlüsselwörter
Fluopyram, Management, Nematicide, Nematode control, Plant-parasitic nematode, Sugar beet