Evaluation of the sensitivity of Leptosphaeria maculans isolates causing phoma stem canker in oilseed rape in the Czech Republic to boscalid and dimoxystrobin fungicides

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F22%3AN0000100" target="_blank" >RIV/60460709:41210/22:N0000100 - isvavai.cz</a>

Výsledek na webu

<a href="https://pps.agriculturejournals.cz/pdfs/pps/2022/04/04.pdf" target="_blank" >https://pps.agriculturejournals.cz/pdfs/pps/2022/04/04.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17221/177/2021-PPS" target="_blank" >10.17221/177/2021-PPS</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evaluation of the sensitivity of Leptosphaeria maculans isolates causing phoma stem canker in oilseed rape in the Czech Republic to boscalid and dimoxystrobin fungicides

Popis výsledku v původním jazyce

Phoma stem canker, caused by Leptosphaeria spp. is generally managed with demethylation inhibitor (DMI) fungicides in the Czech Republic. However, there have been reports of resistance to DMIs in L. maculans populations. Fungicide resistance management recommends the application of fungicides with different modes of action, either as mixtures or in rotation with other fungicide classes. The objective, therefore, was to evaluate the efficacy of boscalid, dimoxystrobin and a mixture of boscalid and dimoxystrobin, belonging to the succinate dehydrogenase inhibitor and quinone outside inhibitor fungicide groups, respectively, on L. maculans isolates. A total of 41 and 285 isolates were tested using the mycelial growth and microtitre plate assays, respectively. The EC50 values for the mycelial growth plate method ranged from 0,026 to 0,984 microgram/mL and 0,097 to 1,653 microgram/mL for boscalid and boscalid plus dimoxystrobin, respectively. For dimoxystrobin, the EC50 range was wide, between 0,053 and 95,59 microgram/mL. The EC50 values for the microtitre plate assay ranged from 0,001496 to 0,8363 microgram/mL and 0,00073 to 2,801 microgram/mL for boscalid and dimoxystrobin, respectively. The results also showed that the L. maculans conidia were more sensitive to boscalid and dimoxystrobin than mycelia.

Název v anglickém jazyce

Evaluation of the sensitivity of Leptosphaeria maculans isolates causing phoma stem canker in oilseed rape in the Czech Republic to boscalid and dimoxystrobin fungicides

Popis výsledku anglicky

Phoma stem canker, caused by Leptosphaeria spp. is generally managed with demethylation inhibitor (DMI) fungicides in the Czech Republic. However, there have been reports of resistance to DMIs in L. maculans populations. Fungicide resistance management recommends the application of fungicides with different modes of action, either as mixtures or in rotation with other fungicide classes. The objective, therefore, was to evaluate the efficacy of boscalid, dimoxystrobin and a mixture of boscalid and dimoxystrobin, belonging to the succinate dehydrogenase inhibitor and quinone outside inhibitor fungicide groups, respectively, on L. maculans isolates. A total of 41 and 285 isolates were tested using the mycelial growth and microtitre plate assays, respectively. The EC50 values for the mycelial growth plate method ranged from 0,026 to 0,984 microgram/mL and 0,097 to 1,653 microgram/mL for boscalid and boscalid plus dimoxystrobin, respectively. For dimoxystrobin, the EC50 range was wide, between 0,053 and 95,59 microgram/mL. The EC50 values for the microtitre plate assay ranged from 0,001496 to 0,8363 microgram/mL and 0,00073 to 2,801 microgram/mL for boscalid and dimoxystrobin, respectively. The results also showed that the L. maculans conidia were more sensitive to boscalid and dimoxystrobin than mycelia.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Plant Protection Science

ISSN

1212-2580

e-ISSN

1805-9341

Svazek periodika

58

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

10

Strana od-do

305-314

Kód UT WoS článku

000861055100001

EID výsledku v databázi Scopus

2-s2.0-85143222727