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BibTeX
Sensitivity to cymoxanil in Italian populations of Plasmopara viticola oospores
Pest management science, 2015-08, Vol.71 (8), p.1182-1188
Toffolatti, Silvia L
Venturini, Giovanni
Campia, Paola
Cirio, Lorenzo
Bellotto, Diego
Vercesi, Annamaria
2015
Volltextzugriff (PDF)
Details
Autor(en) / Beteiligte
Toffolatti, Silvia L
Venturini, Giovanni
Campia, Paola
Cirio, Lorenzo
Bellotto, Diego
Vercesi, Annamaria
Titel
Sensitivity to cymoxanil in Italian populations of Plasmopara viticola oospores
Ist Teil von
Pest management science, 2015-08, Vol.71 (8), p.1182-1188
Ort / Verlag
Chichester, UK: John Wiley & Sons, Ltd
Erscheinungsjahr
2015
Quelle
MEDLINE
Beschreibungen/Notizen
BACKGROUND: The level of sensibility towards cymoxanil was quantified by oospore germination assays in 28 populations of Plasmopara viticola (Berk. et Curt.) Berlese and De Toni sampled from different Italian regions from 2009 to 2012. RESULTS: The populations showed good sensitivity levels, with EC₅₀ values often lower than 10 mg AI L⁻¹ and percentages of resistant individuals lower than 16%. Only three populations, sampled at the end of the 2012 grapevine growing season, were characterised by high resistance levels. Field trials carried out in two of these vineyards showed that, at the beginning of the 2013 grapevine growing season, the EC₅₀ values of P. viticola populations as measured in the sporangial assay were higher than those observed with oospores. At the end of the season, in plots where cymoxanil was not applied, the populations fully reverted to sensitivity, while the EC₅₀ values remained high where 3–6 applications were performed. CONCLUSION: Oospore germination assays provide valuable information on the sensitivity of populations in vineyards also at the quantitative level. The results obtained during the grapevine growing season confirm those obtained on the oospores, and that cymoxanil resistance is unstable, indirectly suggesting that the application of the fungicide according to antiresistance strategies can lead to good disease control. © 2014 Society of Chemical Industry
Sprache
Englisch
Identifikatoren
ISSN: 1526-498X
eISSN: 1526-4998
DOI: 10.1002/ps.3906
Titel-ID: cdi_proquest_miscellaneous_1705099211
Format
–
Schlagworte
Acetamides - pharmacology
,
Agriculture
,
assays
,
Bioassays
,
cymoxanil
,
disease control
,
downy mildew
,
Drug Resistance, Fungal
,
EC50
,
field experimentation
,
fungicide resistance
,
Fungicides, Industrial - pharmacology
,
Germination
,
grapevine
,
growing season
,
Insects
,
Italy
,
Oomycetes - drug effects
,
oospores
,
pesticide application
,
Pesticides
,
Plasmopara viticola
,
population
,
Resistance to control
,
Sensitivity analysis
,
sporangia
,
vineyards
,
Vitaceae
,
Vitis
,
Vitis - growth & development
,
Vitis - microbiology
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