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Titolo:
FUNGICIDE RESISTANCE IN POPULATIONS OF CUCURBIT POWDERY MILDEW (SPHAEROTHECA-FULIGINEA)
Autore:
OBRIEN RG;
Indirizzi:
QUEENSLAND DEPT PRIMARY IND,PLANT PROTECT UNIT,30 MEIERS RD INDOOROOPILLY QLD 4068 AUSTRALIA
Titolo Testata:
New Zealand journal of crop and horticultural science
fascicolo: 2, volume: 22, anno: 1994,
pagine: 145 - 149
SICI:
0114-0671(1994)22:2<145:FRIPOC>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
INHIBIT ERGOSTEROL BIOSYNTHESIS;
Keywords:
CUCURBIT; FUNGICIDE RESISTANCE; SPHAEROTHECA-FULIGINEA; POWDERY MILDEW;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
10
Recensione:
Indirizzi per estratti:
Citazione:
R.G. Obrien, "FUNGICIDE RESISTANCE IN POPULATIONS OF CUCURBIT POWDERY MILDEW (SPHAEROTHECA-FULIGINEA)", New Zealand journal of crop and horticultural science, 22(2), 1994, pp. 145-149

Abstract

Cucurbit powdery mildew samples from Australian cucurbit production areas were assessed for their sensitivity to fungicides. Resistance to benzimidazoles was highest (44%) followed by resistance to demethylation inhibitors (39%), organophosphates (21%), and hydroxypyrimidines (13%). Many collections were resistant to more than one fungicide group. Populations from rockmelon crops were more often resistant than thosefrom less intensively managed pumpkin crops. There were also differences in the spectra of resistance between regions, in particular, a lower frequency of resistance to demethylation inhibiting fungicides in New South Wales (18%) than elsewhere (47%) and a high incidence of resistance to hydroxypyrimidines only in the Riverland-Swan Hill region (40%). Such differences may be caused by variations in patterns of fungicide use. The high frequency of fungicide resistance found in this survey illustrates the need for disease control programs to be implemented which are less reliant on the systemic fungicides.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 17:11:33