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Pest Management Science

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  1. Using an F(2) screen to monitor frequency of resistance alleles to Bt cotton in field populations of Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae).

    Pest Management Science 65(4):391 (2009) PMID 19165746

    In an effort to control the most devastating cotton pest, Helicoverpa armigera (Hübner), in Qiuxian County (Hebei, China), Bt cotton has been planted almost exclusively since 1998 in this area. Owing to the high insecticidal selection pressures in this region, monitoring of Bt resistance in H. a...
  2. Modified female calling behaviour in Cry1Ac-resistant Helicoverpa armigera (Lepidoptera: Noctuidae).

    Pest Management Science 65(4):353 (2009) PMID 19165761

    The resistance risk in Helicoverpa armigera (Hübner) to transgenic cotton that expresses Cry1Ac from Bacillus thuringiensis (Bt) has raised concerns about the sustainable deployment of Bt cotton. Mating behaviour between resistant and susceptible individuals is an important factor that affects r...
  3. Formulation and application of entomopathogenic nematode-infected cadavers for control of Hoplia philanthus in turfgrass.

    Pest Management Science 65(4):367 (2009) PMID 19165730

    Commercially produced entomopathogenic nematodes (EPNs) are usually applied in an aqueous suspension. However, recent studies demonstrate that they can be successfully applied as infected cadavers. EPN-infected insect cadavers were formulated in various carrier/coating materials, but only infect...
  4. Anticoagulant resistance: a relevant issue in sewer rat (Rattus norvegicus) control?

    Pest Management Science 65(4):444 (2009) PMID 19165753

    The majority of rat problems in cities are thought to be related to defective sewers, and the use of anticoagulant rodenticides in such places is often implemented as part of regular urban rodent control. Knowledge pertaining to the resistance status of sewer rat populations is non-existent, whi...
  5. Genetic and biochemical analysis of a laboratory-selected spirodiclofen-resistant strain of Tetranychus urticae Koch (Acari: Tetranychidae).

    Pest Management Science 65(4):358 (2009) PMID 19170251

    Spirodiclofen is a selective, non-systemic acaricide from the new chemical class of tetronic acid derivatives. In order to develop strategies to minimise resistance in the field, a laboratory-selected spirodiclofen-resistant strain of the two-spotted spider mite, Tetranychus urticae Koch, was us...
  6. Mutations in the mitochondrial cytochrome b of Tetranychus urticae Koch (Acari: Tetranychidae) confer cross-resistance between bifenazate and acequinocyl.

    Pest Management Science 65(4):404 (2009) PMID 19165831

    Resistance of Tetranychus urticae Koch to bifenazate was recently linked with mutations in the mitochondrial cytochrome b Q(o) pocket, suggesting that bifenazate acts as a Q(o) inhibitor (Q(o)I). Since these mutations might cause cross-resistance to the known acaricidal Q(o)I acequinocyl and flu...
  7. Resistance of Pakistani field populations of spotted bollworm Earias vittella (Lepidoptera: Noctuidae) to pyrethroid, organophosphorus and new chemical insecticides.

    Pest Management Science 65(4):433 (2009) PMID 19165729

    The spotted bollworm Earias vittella (Fab.) is a serious pest of cotton and okra in Pakistan. Owing to persistent use of insecticides, this pest has developed resistance, especially to pyrethroids. The present studies aimed at determining the extent of resistance to pyrethroid, organophosphorus ...
  8. Pesticide use in ornamental production: what are the benefits?

    Pest Management Science 65(4):345 (2009) PMID 19165759

    Pest control in ornamental production is challenging owing to the diversity of crops grown, the desired aesthetic perfection, the potential economic loss due to failure and the multitude of arthropod pests encountered. Agricultural crops of less value per acre, such as row crops, can tolerate a ...
  9. Effect of compost and casing treatments of insecticides against the sciarid Bradysia ocellaris (Diptera: Sciaridae) and on the total yield of cultivated mushrooms, Agaricus bisporus.

    Pest Management Science 65(4):375 (2009) PMID 19172599

    Bradysia ocellaris (Comstock) is one of the major pests of cultivated mushrooms, Agaricus bisporus (Lange) Imbach. The feeding of sciarid fly larvae causes damage to the cultivation substrates, compost and casing. A comparative study of insecticidal treatments incorporated into compost and casin...
  10. Effect of additives in aqueous formulation on the foliar uptake of dimethomorph by cucumbers.

    Pest Management Science 65(4):426 (2009) PMID 19165749

    The efficacy enhancement of dimethomorph formulation by several adjuvants is thought to be through increased foliar uptake. In order to identify the most effective adjuvants, the adjuvancy of 36 additives was examined in aqueous formulations in relation to the absorption of dimethomorph by cucum...