Showing papers on "Dacus published in 2001"
TL;DR: The Bougainville, Solomon Islands and Vanuatu dacine fauna is revised and 12 new species are described: Bactrocera atrabifasciata, B. fuscipennula, B.
Abstract: The Bougainville, Solomon Islands and Vanuatu dacine fauna is revised and 12 new species are described: Bactrocera atrabifasciata, B. fuscipennula, B. hamaceki, B. hollingsworthi, B. naucleae, B. neoxanthodes, B. obliquivenosa, B. pacificae, B. parafroggatti, B. peneobscura, B. unitaeniola, Dacus taui. Two new synonymies are established: Bactrocera honiarae Drew = Bactrocera confluens (Drew); Dacus varipes Malloch = Bactrocera quadrisetosa (Bezzi). Information is given on attractant records, geographical distributions and taxonomic relationships. A key to species is also provided.
17 citations
Journal Article•
TL;DR: The polymorphic esterase loci, Est A and Est B, of a major agricultural pest, the olive fruit fly, were studied using a standard laboratory population, two "resistant" populations constructed after exposure of larvae to sublethal doses of the organophosphate insecticide dimethoate, and a field population subjected to long-term pesticide exposure.
Abstract: The polymorphic esterase loci, Est A and Est B, of a major agricultural pest, the olive fruit fly, Bactrocera oleae (Dacus oleae), were stud- ied using a standard laboratory population (Ls) that had never been subjected to insecticides, two "resistant" populations (Rs and RRs) constructed after exposure of larvae to sublethal doses of the organophosphate insecticide dimethoate, and a field population (Fs) subjected to long-term pesticide expo- sure. Data showed that dimethoate, as a selective agent, was responsible for the induction of the changes in the frequencies of alleles of the Est A locus, whereas it did not affect the Est B locus. Our results also showed that the changes in the frequencies of some active alleles of Est A locus, observed in resistant populations, were similar to those found in the field population.
11 citations