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

Result code in 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>

Result on the web

<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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Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

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

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2018

Confidentiality

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

Article name in the collection

MendelNet 2018: Proceedings of International PhD Students Conference

ISBN

978-80-7509-597-8

ISSN

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e-ISSN

neuvedeno

Number of pages

6

Pages from-to

22-27

Publisher name

Mendelova univerzita v Brně

Place of publication

Brno

Event location

Brno

Event date

Nov 7, 2018

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

000462205300002