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Population Genetic Structure of Codling Moth (Lepidoptera: Tortricidae) from Apple Orchards in Central Chile
A high genetic exchange of codling moth between orchards, possibly mediated by human activities related to fruit production, is suggested. Expand
Evaluation of Azinphos-Methyl Resistance and Activity of Detoxifying Enzymes in Codling Moth (Lepidoptera: Tortricidae) from Central Chile
The observed reduction in postdiapause larval mortality to azinphos-methyl seems to be associated with an increase in GST activity, which is likely to be involved in resistance to insecticides. Expand
The invasion route for an insect pest species: the tobacco aphid in the New World
The tobacco aphid case provides further evidence for the existence of highly successful genotypes or ‘superclones’ in asexually reproducing organisms. Expand
Evaluating reproductive fitness and metabolic costs for insecticide resistance in Myzus persicae from Chile
The results show that genotypes carrying at least one IRM have higher levels of total esterase activity than genotypes without an IRM, and that there is no evidence of an energy cost and no evidence for a reproductive fitness cost associated with total esTERase activity, IRM or metabolic rate. Expand
Behavioural differences between Aphidius ervi populations from two tritrophic systems are due to phenotypic plasticity
Variation in mitochondrial DNA segments and RAPD‐PCR polymorphism using total DNA showed the absence of host‐based population structure and a high genetic homogeneity between these A. ervi populations, rejecting the possible existence of different host‐strains of this parasitoid in Chile. Expand
Organophosphate Resistance and Its Main Mechanism in Populations of Codling Moth (Lepidoptera: Tortricidae) from Central Chile
Codling moth in Chile has resistance to azinphos-methyl and tebufenozide in post-diapausing larvae, however, there are no studies about the susceptibility of these populations to insecticides from other chemical groups, and chlorpyrifos resistance was associated only with a decreased esterase activity. Expand
Genetic diversity and insecticide resistance of Myzus persicae (Hemiptera: Aphididae) populations from tobacco in Chile: evidence for the existence of a single predominant clone
Esterase activity showed the level and variability expected for an R1 clone lacking mutations in the sodium channels (susceptible kdr), thus corresponding to a type slightly resistant to organophosphate and carbamate, and susceptible to pyrethroid insecticides. Expand
Landscape Analysis of Adult Codling Moth (Lepidoptera: Tortricidae) Distribution and Dispersal within Typical Agroecosystems Dominated by Apple Production in Central Chile
ABSTRACT We analyzed the spatial distribution and dispersal of codling moth, Cydia pomonella (L.), adults within two heterogeneous agroecosystems typical of central Chile: commercial apple, MalusExpand
Monitoring oriental fruit moth and codling moth (Lepidoptera: Tortricidae) with combinations of pheromones and kairomones
Experiments were conducted in North and South America during 2012–2013 to evaluate the use of lure combinations of sex pheromones (PH), host plant volatiles (HPVs) and food baits in traps to captureExpand
Landscape composition modulates population genetic structure of Eriosoma lanigerum (Hausmann) on Malus domestica Borkh in central Chile.
The woolly apple aphid, Eriosoma lanigerum (Hausmann), an important pest of apple orchards worldwide, was collected on apple trees from different locations in a 400 km north-south transect trough central Chile to determine if there was population structure, diversity and flow. Expand