Testing the sensitivity of Venturia inaequalis to pyrimethanil from selected orchards in Czech Republic

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25271121%3A_____%2F20%3AN0000089" target="_blank" >RIV/25271121:_____/20:N0000089 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Testing the sensitivity of Venturia inaequalis to pyrimethanil from selected orchards in Czech Republic

Popis výsledku v původním jazyce

The fungus Venturia inaequalis (Cooke) G. Winter (1875) (anamorph - Spilocea pomi Fr., 1825) causes a disease in apple orchards worldwide – apple scab. It is the most serious and economically important disease of apple trees (Malus x domestica Borkh.). In order to ensure reliable protection against apple scab, it is necessary to apply 15 to 20 fungicide sprays during the season. Intensive use of chemical protection may lead to its failure, which may be due to lower sensitivity, or even resistance of the fungus. One group of fungicides commonly used are known as anilino-pyrimidines (AP), with a moderate risk of developing resistence. Mutations in the regulation of methionine biosynthesis are a potential cause of AP fungicide resistance. Especially fungal pathogens such as V. inaequalis and Botrytis cinerea showed lower sensitivity or resistance to anilinopyrimidines in fruit crops. Aim of this study was to find out the current state of sensitivity of V. inaequalis populations to the active substance pyrimethanil (compound Mythos 30 SC) from selected commercial orchards in the Czech Republic reporting nonsatisfactory management of apple scab.

Název v anglickém jazyce

Testing the sensitivity of Venturia inaequalis to pyrimethanil from selected orchards in Czech Republic

Popis výsledku anglicky

The fungus Venturia inaequalis (Cooke) G. Winter (1875) (anamorph - Spilocea pomi Fr., 1825) causes a disease in apple orchards worldwide – apple scab. It is the most serious and economically important disease of apple trees (Malus x domestica Borkh.). In order to ensure reliable protection against apple scab, it is necessary to apply 15 to 20 fungicide sprays during the season. Intensive use of chemical protection may lead to its failure, which may be due to lower sensitivity, or even resistance of the fungus. One group of fungicides commonly used are known as anilino-pyrimidines (AP), with a moderate risk of developing resistence. Mutations in the regulation of methionine biosynthesis are a potential cause of AP fungicide resistance. Especially fungal pathogens such as V. inaequalis and Botrytis cinerea showed lower sensitivity or resistance to anilinopyrimidines in fruit crops. Aim of this study was to find out the current state of sensitivity of V. inaequalis populations to the active substance pyrimethanil (compound Mythos 30 SC) from selected commercial orchards in the Czech Republic reporting nonsatisfactory management of apple scab.

Druh

O - Ostatní výsledky

CEP obor

—

OECD FORD obor

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

Projekt

<a href="/cs/project/LO1608" target="_blank" >LO1608: Výzkumné ovocnářské centrum</a><br>

Návaznosti

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

Rok uplatnění

2020

Kód důvěrnosti údajů

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