Long-lasting study of fungicide efficacy against Czech cucurbit powdery mildew populations

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F17%3A73583929" target="_blank" >RIV/61989592:15310/17:73583929 - isvavai.cz</a>

Výsledek na webu

<a href="http://dpg.phytomedizin.org/fileadmin/daten/04_Verlag/02_SP/05_Reinhard/FungicidesVIII.pdf" target="_blank" >http://dpg.phytomedizin.org/fileadmin/daten/04_Verlag/02_SP/05_Reinhard/FungicidesVIII.pdf</a>

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Long-lasting study of fungicide efficacy against Czech cucurbit powdery mildew populations

Popis výsledku v původním jazyce

A total of 150 cucurbit powdery mildew (CPM) isolates (78 Golovinomyces orontii s.l. /Go/, 72 Podosphaera xanthii /Px/) from the Czech Republic from 2007 to 2011, were screened for fungicide efficacy to the four frequently used fungicides (fenarimol /formulated as Rubigan 12 EC/, dinocap /Karathane LC/, thiophanate-methyl /Topsin M 70 WP/, azoxystrobin /Ortiva/) and a control fungicide (benomyl /Fundazol 50 WP/). Fungicide efficacy was determined by a modified leaf-disc bioassay with five concentrations. Highly susceptible Cucumis sativus ’Stela F1’ was used for preparation of leaf discs. Efficacy of the tested fungicides towards screened CPM isolates varied significantly during the studied period. From 2012 to 2013, efficacy of four new commonly used and registered fungicides (quinoxyfen /Atlas 500 SC/, propiconazole /Bumper 25 EC/, fenpropimorph /Corbel/, penconazole /Topas 100 EC/) was screened. As well as there has been continued monitoring of dinocap and azoxystrobin efficacy. Altogether 50 CPM Czech isolates (23 Go, 27 Px) were tested using a modified leaf-disc bioassay with three concentrations. Efficacy of fungicides towards screened CPM isolates varied significantly and there were observed also differences in efficacy of some fungicides between both CPM species and as well as between studied years. Fenpropimorph was 100% effective and showed phytotoxicity to C. sativus ’Stela F1’ leaf discs. Propiconazole and penconazole were also highly effective. Dinocap expressed decreased efficacy from 2012 to 2013 (mainly for Go). Quinoxyfen appeared less effective. Azoxystrobin showed decreased efficacy and there was observed a shift towards prevalence of azoxystrobin-resistant strains in Czech CPM populations in 2013. This research was supported by the following grants: QH71229, MSM6198959215, IGA_PrF_2016_001.

Název v anglickém jazyce

Long-lasting study of fungicide efficacy against Czech cucurbit powdery mildew populations

Popis výsledku anglicky

A total of 150 cucurbit powdery mildew (CPM) isolates (78 Golovinomyces orontii s.l. /Go/, 72 Podosphaera xanthii /Px/) from the Czech Republic from 2007 to 2011, were screened for fungicide efficacy to the four frequently used fungicides (fenarimol /formulated as Rubigan 12 EC/, dinocap /Karathane LC/, thiophanate-methyl /Topsin M 70 WP/, azoxystrobin /Ortiva/) and a control fungicide (benomyl /Fundazol 50 WP/). Fungicide efficacy was determined by a modified leaf-disc bioassay with five concentrations. Highly susceptible Cucumis sativus ’Stela F1’ was used for preparation of leaf discs. Efficacy of the tested fungicides towards screened CPM isolates varied significantly during the studied period. From 2012 to 2013, efficacy of four new commonly used and registered fungicides (quinoxyfen /Atlas 500 SC/, propiconazole /Bumper 25 EC/, fenpropimorph /Corbel/, penconazole /Topas 100 EC/) was screened. As well as there has been continued monitoring of dinocap and azoxystrobin efficacy. Altogether 50 CPM Czech isolates (23 Go, 27 Px) were tested using a modified leaf-disc bioassay with three concentrations. Efficacy of fungicides towards screened CPM isolates varied significantly and there were observed also differences in efficacy of some fungicides between both CPM species and as well as between studied years. Fenpropimorph was 100% effective and showed phytotoxicity to C. sativus ’Stela F1’ leaf discs. Propiconazole and penconazole were also highly effective. Dinocap expressed decreased efficacy from 2012 to 2013 (mainly for Go). Quinoxyfen appeared less effective. Azoxystrobin showed decreased efficacy and there was observed a shift towards prevalence of azoxystrobin-resistant strains in Czech CPM populations in 2013. This research was supported by the following grants: QH71229, MSM6198959215, IGA_PrF_2016_001.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

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

Projekt

<a href="/cs/project/QH71229" target="_blank" >QH71229: Diagnostika a metody integrované ochrany proti karanténním a dalším ekonomicky významným patogenům plodové a listové zeleniny</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

Modern fungicides and antifungal compounds VIII

ISBN

978-3-941261-15-0

ISSN

—

e-ISSN

neuvedeno

Počet stran výsledku

2

Strana od-do

115-116

Název nakladatele

Deutsche Phytomedizinische Gesellschaft

Místo vydání

Braunschweig

Místo konání akce

Friedrichroda

Datum konání akce

24. 4. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—