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Titolo:
Acaricide toxicity and resistance in larvae of different strains of Tetranychus urticae and Panonychus ulmi (Acari : Tetranychidae)
Autore:
Nauen, R; Stumpf, N; Elbert, A; Zebitz, CPW; Kraus, W;
Indirizzi:
Bayer AG, Agrochem Div, Res Insecticides, D-51368 Leverkusen, Germany Bayer AG Leverkusen Germany D-51368 ticides, D-51368 Leverkusen, Germany Univ Hohenheim, D-70593 Stuttgart, Germany Univ Hohenheim Stuttgart Germany D-70593 eim, D-70593 Stuttgart, Germany
Titolo Testata:
PEST MANAGEMENT SCIENCE
fascicolo: 3, volume: 57, anno: 2001,
pagine: 253 - 261
SICI:
1526-498X(200103)57:3<253:ATARIL>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
2-SPOTTED SPIDER-MITE; HEXYTHIAZOX RESISTANCE; WESTERN-AUSTRALIA; FENBUTATIN OXIDE; CROSS-RESISTANCE; KOCH ACARI; CLOFENTEZINE; SUSCEPTIBILITY; DICOFOL; APPLES;
Keywords:
Tetranychus urticae; Panonychus ulmi; METI acaricides; resistance; toxicity; spray bioassay;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
34
Recensione:
Indirizzi per estratti:
Indirizzo: Nauen, R Bayer AG, Agrochem Div, Res Insecticides, D-51368 Leverkusen, Germany Bayer AG Leverkusen Germany D-51368 D-51368 Leverkusen, Germany
Citazione:
R. Nauen et al., "Acaricide toxicity and resistance in larvae of different strains of Tetranychus urticae and Panonychus ulmi (Acari : Tetranychidae)", PEST MAN SC, 57(3), 2001, pp. 253-261

Abstract

The toxicities of eight structurally different acaricidal compounds to six-legged larvae (first motile stage) of three laboratory strains of the two-spotted spider mite, Tetranychus urticae, and the European red mite, Panonychus ulmi, were evaluated following spray application. The larvae of five field-derived strains of T urticae originating from France, Italy, Brazil, California and Florida were also tested for their susceptibilities to discriminating concentrations of several acaricides resulting in 95% mortality when applied to the organophosphate-resistant laboratory reference strain WI. The spray bioassay used was robust and gave repeatable results with a widerange of acaricidal compounds, irrespective of their mode of action (ovo-larvicides or primarily acting on motile life stages). Compounds tested wereabamectin, azocyclotin, chlorpyrifos, clofentezine, deltamethrin, fenpyroximate, hexythiazox and pyridaben. Larvae of one of the laboratory strains of T urticae, AK, originally collected in Japan in 1996 and maintained without further selection pressure, exhibited 2000- and >4000-fold resistance tothe mitochondrial electron transport inhibitors pyridaben and fenpyroximate, respectively. Another strain of T urticae, AU, obtained from Australia and maintained in the laboratory under selection with hexythiazox and clofentezine since 1987 showed >770- and >1000-fold resistance to clofentezine and hexythiazox, respectively. The same resistance pattern was observed against larvae of a laboratory strain of P ulmi, CE, also selected with hexythiazox. Larvae of one of the field-derived strains of T urticae, BR, showed a lower susceptibility to a number of compounds, whilst the others were susceptible to all compounds except the organophosphates. (C) 2001 Society of Chemical Industry.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/01/20 alle ore 09:26:56