Sensitivity of different genotypes of Calonectria pseudonaviculata isolates to active fungicidal ingredients

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F18%3A43914580" target="_blank" >RIV/62156489:43210/18:43914580 - isvavai.cz</a>

Výsledek na webu

<a href="https://mnet.mendelu.cz/mendelnet2018/mnet_2018_full.pdf" target="_blank" >https://mnet.mendelu.cz/mendelnet2018/mnet_2018_full.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Sensitivity of different genotypes of Calonectria pseudonaviculata isolates to active fungicidal ingredients

Popis výsledku v původním jazyce

Pathogen Calonectria pseudonaviculata is a causal agent of boxwood blight disease on Buxus spp. Since its first occurrence in 2010 in the Czech Republic on young plants in the production nursery it can be nowadays find also on older plantings of boxwood in chateau gardens and parks. At present the existence of two genotypes of Calonectria pseudonaviculata is known: G1 (Calonectria pseudonaviculata) and G2 (Calonectria henricotiae). Preventive measures are often not sufficient enough to control this pathogen, therefore chemical management needs to be included. Active ingredients of common fungicides registered in the Czech Republic were tested on four isolates, obtained from infected plants from chateau gardens. Fungicide efficacy on mycelia growth of each pathogen culture was evaluated in vitro. Comparison of active ingredients cyprodinil+fludioxonil, tebuconazole+fluopyram, prochloraz and thiophanate-methyl shows significantly the best results in mycelia growth inhibition. Fungicides containing active ingredient prochloraz and thiophanate-methyl are registered in the Czech Republic only for field crops use. Statistically significant difference of reduced mycelia growth inhibition of G2 by kresoxim-methyl was proved only for one of three isolates at 0.03% concentration of active ingredient. At 3% concentration of kresoxim-methyl the reduced inhibition of mycelia growth of G2 genotypes was proved.

Název v anglickém jazyce

Sensitivity of different genotypes of Calonectria pseudonaviculata isolates to active fungicidal ingredients

Popis výsledku anglicky

Pathogen Calonectria pseudonaviculata is a causal agent of boxwood blight disease on Buxus spp. Since its first occurrence in 2010 in the Czech Republic on young plants in the production nursery it can be nowadays find also on older plantings of boxwood in chateau gardens and parks. At present the existence of two genotypes of Calonectria pseudonaviculata is known: G1 (Calonectria pseudonaviculata) and G2 (Calonectria henricotiae). Preventive measures are often not sufficient enough to control this pathogen, therefore chemical management needs to be included. Active ingredients of common fungicides registered in the Czech Republic were tested on four isolates, obtained from infected plants from chateau gardens. Fungicide efficacy on mycelia growth of each pathogen culture was evaluated in vitro. Comparison of active ingredients cyprodinil+fludioxonil, tebuconazole+fluopyram, prochloraz and thiophanate-methyl shows significantly the best results in mycelia growth inhibition. Fungicides containing active ingredient prochloraz and thiophanate-methyl are registered in the Czech Republic only for field crops use. Statistically significant difference of reduced mycelia growth inhibition of G2 by kresoxim-methyl was proved only for one of three isolates at 0.03% concentration of active ingredient. At 3% concentration of kresoxim-methyl the reduced inhibition of mycelia growth of G2 genotypes was proved.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

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

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

MendelNet 2018: Proceedings of International PhD Students Conference

ISBN

978-80-7509-597-8

ISSN

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e-ISSN

neuvedeno

Počet stran výsledku

6

Strana od-do

22-27

Název nakladatele

Mendelova univerzita v Brně

Místo vydání

Brno

Místo konání akce

Brno

Datum konání akce

7. 11. 2018

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000462205300002