Assessing the Quality of Mass-Reared Codling Moths (Lepidoptera: Tortricidae) by Using Field Release-Recapture Tests

  title={Assessing the Quality of Mass-Reared Codling Moths (Lepidoptera: Tortricidae) by Using Field Release-Recapture Tests},
  author={Stephanie Bloem and Kenneth A. Bloem and Alan Lee Knight},
  journal={Journal of Economic Entomology},
Following small-scale field releases of sterile, mass-reared codling moths, Cydia Pomonella (L.), in the spring of 1995, significantly higher numbers of adults originating from larvae that had been induced into diapause were recaptured in passive interception traps compared with standard (nondiapaused) colony moths reared under either constant or fluctuating temperatures. When releases were made in the summer, significantly more diapaused females were again recaptured and similar numbers of… Expand
Operational Mark—Release—Recapture Field Tests Comparing Competitiveness of Wild and Differentially Mass-Reared Codling Moths from the Okanagan—Kootenay Sterile Insect Program
Abstract Pheromone trap catches and mating activity of sterile, mass-reared, diapaused and non-diapaused male codling moths, Cydia pomonella (L.) (Lepidoptera: Tortricidae), were compared withExpand
Effect of Rearing Strategy and Gamma Radiation on Field Competitiveness of Mass-Reared Codling Moths (Lepidoptera: Tortricidae)
The best treatment for improving codling moth male field performance was a combination of rearing through diapause and using a low dose of radiation (150 Gy); the difference in performance when insects were treated with 150 or 250 Gy was greater when males had been reared using standard (nondiapause) rearing protocols, suggesting that diappause rearing may attenuate some of the negative effects of the higher doses of radiation. Expand
Seasonal variation in recapture of mass-reared sterile codling moth, Cydia pomonella (L.) (Lepidoptera: Tortricidae): implications for control by sterile insect technique in British Columbia
Monitoring of S:W ratios for the entire SIR Programme and correlations with damage would provide recommendations for the best use of sterile insects as part of any future area-wide codling moth management programme are concluded. Expand
Inherited sterility in codling moth (Lepidoptera : Tortricidae) : Effect of substerilizing doses of radiation on field competitiveness
In mating table experiments, successful matings decreased as the dose of radiation increased, and Untreated males were the most competitive among released codling moths. Expand
Diapause improves springtime mating competitiveness of male codling moth mass‐reared for a sterile insect programme
The objective of this field study was to assess the mating competitiveness and recapture of sterilized male codling moths that have been mass-reared through a diapause larval state in comparison to wild males that developed on apples but also emerged from larval diAPause in spring. Expand
Monitoring Codling Moth (Lepidoptera: Tortricidae) with Passive Interception Traps in Sex Pheromone-Treated Apple Orchards
  • A. Knight
  • Biology, Medicine
  • Journal of economic entomology
  • 2000
Male and female codling moth, Cydia pomonella, were monitored with passive interception traps (PI-traps) in apple orchard treated with sex pheromone dispensers and the numbers of total and female moths caught were significantly correlated with fruit injury for eachgeneration. Expand
Season-Long Releases of Partially Sterile Males for Control of Codling Moth (Lepidoptera: Tortricidae) in Washington Apples
Results indicated that the release of partially sterile male (and fully sterile female) codling moths does not result in increased fruit injury and that the lower dose of radiation used to partially sterilize males results in insects that are more active, disperse greater distances and are generally more competitive. Expand
Recapture of Codling Moth (Lepidoptera: Tortricidae) Males: Influence of Lure Type and Pheromone Background
Results suggest that pheromone dispenser technologies and placement strategies that maximize disruption of males that arise within 10 m of a female are needed to markedly improve mating disruption. 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
Factors Affecting the Differential Capture of Male and Female Codling Moth (Lepidoptera: Tortricidae) in Traps Baited with Ethyl (E, Z)-2,4-Decadienoate
Evaluating factors that differentially affect the catch of male and female codling moth in traps baited with ethyl (E, Z)-2,4-decadienoate (pear ester) found that lure and kill strategies should include factors that optimize the captures of female moths. Expand