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פותח על ידי קלירמאש פתרונות בע"מ -
Screening of Botrytis cinerea isolates from vineyards in Israel for resistance to fungicides
Year:
2011
Authors :
אלעד, יגאל
;
.
מאמייב, מוחידין
;
.
קורולב, נדיה
;
.
Volume :
129
Co-Authors:
Korolev, N., Department of Plant Pathology and Weed Research, ARO, The Volcani Center, Bet Dagan 50250, Israel
Mamiev, M., Department of Plant Pathology and Weed Research, ARO, The Volcani Center, Bet Dagan 50250, Israel
Zahavi, T., Extension Service, Ministry of Agriculture, Kiryat-Shemone, Israel
Elad, Y., Department of Plant Pathology and Weed Research, ARO, The Volcani Center, Bet Dagan 50250, Israel
Facilitators :
From page:
591
To page:
608
(
Total pages:
18
)
Abstract:
Plots in two vineyards in the Golan Heights, Israel were treated with six botryticides during three growing seasons with 3 applications per season. Applications of fenhexamid, pyrimethanil and cyprodinil + fludioxonil were effective, resulting in 52-65% and 53-63% mean reduction in grey mould incidence and severity, respectively. Carbendazim, fluazinam and iprodione were ineffective or slightly effective. Five hundred and sixteen B. cinerea isolates were collected from infected berries or trapped from the air in the vineyards, and profiles of sensitivity to benomyl, fenhexamid, fluazinam, fludioxonil, iprodione and pyrimethanil were established for each of the isolates based on a mycelial growth test. Seventy-four percent of the isolates were sensitive to the six tested fungicides, and the other 26% of the isolates were classified into 10 phenotypes characterized by resistance to one or more fungicides. Resistant isolates showed fitness parameters similar or reduced in comparison to sensitive isolates. Resistance to benzimidazoles and to dicarboximides was the most frequent (up to 25%) and apparently pre-existed in the populations tested. Increased frequency of benzimidazole resistance, but not dicarboximide resistance, was observed following the 3 years of applications of the fungicides. High level resistance to pyrimethanil was present at a frequency of about 2% in both vineyards in the first 2 years of the sampling survey and reached 10% in the third year at Site 2. A few isolates were resistant to fenhexamid or fludioxonil (0.8 or 0.2%, respectively). No strong resistance to fluazinam was detected, although numerous, less sensitive isolates, presumably possessing multi-drug resistance traits, were recovered at higher frequency from the plots treated with fluazinam than from the untreated plots. © 2010 KNPV.
Note:
Related Files :
Botrytis
chemical control
Fenhexamid
Fludioxonil
Golan heights
Iprodione
Israel
pesticide resistance
phenotype
vineyard
עוד תגיות
תוכן קשור
More details
DOI :
10.1007/s10658-010-9723-9
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
19242
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:27
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Scientific Publication
Screening of Botrytis cinerea isolates from vineyards in Israel for resistance to fungicides
129
Korolev, N., Department of Plant Pathology and Weed Research, ARO, The Volcani Center, Bet Dagan 50250, Israel
Mamiev, M., Department of Plant Pathology and Weed Research, ARO, The Volcani Center, Bet Dagan 50250, Israel
Zahavi, T., Extension Service, Ministry of Agriculture, Kiryat-Shemone, Israel
Elad, Y., Department of Plant Pathology and Weed Research, ARO, The Volcani Center, Bet Dagan 50250, Israel
Screening of Botrytis cinerea isolates from vineyards in Israel for resistance to fungicides
Plots in two vineyards in the Golan Heights, Israel were treated with six botryticides during three growing seasons with 3 applications per season. Applications of fenhexamid, pyrimethanil and cyprodinil + fludioxonil were effective, resulting in 52-65% and 53-63% mean reduction in grey mould incidence and severity, respectively. Carbendazim, fluazinam and iprodione were ineffective or slightly effective. Five hundred and sixteen B. cinerea isolates were collected from infected berries or trapped from the air in the vineyards, and profiles of sensitivity to benomyl, fenhexamid, fluazinam, fludioxonil, iprodione and pyrimethanil were established for each of the isolates based on a mycelial growth test. Seventy-four percent of the isolates were sensitive to the six tested fungicides, and the other 26% of the isolates were classified into 10 phenotypes characterized by resistance to one or more fungicides. Resistant isolates showed fitness parameters similar or reduced in comparison to sensitive isolates. Resistance to benzimidazoles and to dicarboximides was the most frequent (up to 25%) and apparently pre-existed in the populations tested. Increased frequency of benzimidazole resistance, but not dicarboximide resistance, was observed following the 3 years of applications of the fungicides. High level resistance to pyrimethanil was present at a frequency of about 2% in both vineyards in the first 2 years of the sampling survey and reached 10% in the third year at Site 2. A few isolates were resistant to fenhexamid or fludioxonil (0.8 or 0.2%, respectively). No strong resistance to fluazinam was detected, although numerous, less sensitive isolates, presumably possessing multi-drug resistance traits, were recovered at higher frequency from the plots treated with fluazinam than from the untreated plots. © 2010 KNPV.
Scientific Publication
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