Effect of irradiation on female painted apple moth <i>Teia anartoides</i> (Lep., Lymantriidae) sterility and attractiveness to males

Suckling, D. M.; Hackett, J.K.; Chhagan, A.; Barrington, A. M.; El‐Sayed, Ashraf M.

doi:10.1111/j.1439-0418.2006.01037.x

Cited by 12 publications

(8 citation statements)

References 12 publications

(20 reference statements)

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“…This led to a seven‐fold reduction in the number of males attracted to females that had been irradiated at 300 Gy. This was similar to the effect reported with irradiated female T. anartoides (Suckling et al., ).…”

Section: Discussionsupporting

confidence: 92%

“…Suckling et al. () found a significant difference in the attractiveness of irradiated and non‐irradiated female T. anartoides at higher doses, but this has not been previously investigated in E. postvittana .…”

Section: Introductionmentioning

confidence: 94%

“…Female Lepidoptera are usually more sensitive to radiation dose than males [e.g., E. postvittana (Soopaya et al., ); T. anartoides (Suckling et al., ); C. pomonella (Toba & Moffitt, ; Bloem et al., )], but few studies have considered the role of irradiation on females for field release (e.g., Hight et al., ; Kean et al., ). Suckling et al.…”

Section: Introductionmentioning

confidence: 99%

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Attractiveness and competitiveness of irradiated light brown apple moths

Stringer

Sullivan

et al. 2013

Entomologia Exp Applicata

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The sterile insect technique (SIT) potentially provides a socially acceptable approach for insect eradication of new pest incursions. The light brown apple moth, Epiphyas postvittana (Walker) (Lepidoptera: Tortricidae), was discovered in Berkeley (CA, USA) in 2006, leading to an incursion response that included this technology. In this study, we assessed factors affecting mating success from a bisex release of irradiated moths: effects of radiation dose on male multiple mating, male flight competition, female sex pheromone titre and attractiveness of irradiated females to males, and identification of successful mating in vineyards of either irradiated or wild males (identified by isotope analysis of spermatophores from sentinel females). There was a significant negative relationship between male radiation dose and mating frequency. In head-to-head flights of irradiated males against non-irradiated males to a pheromone lure in a wind tunnel, irradiated males reached the lure first only 31% of the time. With increasing radiation dose, the production of the major sex pheromone component in females, (E)-11-tetradecenyl acetate, dropped, from 0.7 AE 0.1 ng per female in non-irradiated females to 0.2 AE 0.07 ng per female when irradiated at 300 Gy. Male catch was reduced to 11% of control females in traps containing females irradiated at 300 Gy. Isotope analysis of spermatophores found in the bursa copulatrix of females indicated that mating success of irradiated males inside the live (entry-only) traps containing virgin females was lower (13.1 AE 3.3%) than suggested by male catch (21.2 AE 3.8%) in pheromone traps, the current standard for assessing field competitiveness. Impacts of irradiation on male and female moth fitness should be taken into account to improve estimates of irradiated to wild male E. postvittana overflooding ratios needed for population suppression.

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Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 94%

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Attractiveness and competitiveness of irradiated light brown apple moths

Stringer

Sullivan

et al. 2013

Entomologia Exp Applicata

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“…Therefore, a recapture recorded on a particular day had occurred between that day and the more recent of the release days or the last day the trap was checked. Parameters affecting female moth performance have been examined elsewhere (Suckling et al., 2006).…”

Section: Methodsmentioning

confidence: 99%

Evidence of active or passive downwind dispersal in mark–release–recapture of moths

Guichard

Kriticos

Leriche

et al. 2010

Entomologia Exp Applicata

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Modelling moth dispersal in relation to wind direction and strength could greatly enhance the role of pheromone traps in biosecurity and pest management applications. Anemotaxis theory, which describes moth behaviour in the presence of a pheromone plume and is used as a framework for such models. Currently, however, that theory includes only three components: upwind, zigzagging, and sideways casting behaviour. We test anemotaxis theory by analysing the data from a series of mark–release–recapture experiments where the wind direction was known and the insects were trapped using an irregular grid of pheromone traps. The trapping results provide evidence of a downwind component to the flight patterns of the released insects. This active or passive downwind dispersal is likely to be an appetitive behaviour, occurring prior to the elicitation of pheromone‐oriented flight patterns (pheromone anemotaxis). Given the potential for significant displacement during downwind dispersal, this component will have impact on final trap captures and should be considered when constructing moth dispersal models.

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“…Despite attempts to model the effects of bi-sex or male-only releases of moths that suggested little benefit from females (Kean et al 2011), there is evidence for a background contribution of the female moths through communication disruption of males from calling virgin females, despite their irradiationreduced attractiveness and pheromone titre (Stringer et al 2013;Suckling et al 2006). Further, it has been suggested that there may be a benefit from sterile females acting as a ''sperm sink'' for wild males thereby reducing wild male fertility, which could contribute to part of the observed effect of population suppression.…”

Section: Operational Strategiesmentioning

confidence: 99%

Global range expansion of pest Lepidoptera requires socially acceptable solutions

et al. 2016

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Caterpillars of key moth pests can cause significant losses in cropping systems worldwide, and globalization is spreading such pests. Failure to control some species can jeopardise the economics of food production. A Global Eradication and Response Database (http://b3.net.nz/gerda) was reviewed on known government-level incursion response programs specific to invasive Lepidoptera. Geographic range expansion of Lepidoptera was evident from 144 incursion response programs targeting 28 species in 10 families. The countries involved in responses to Lepidoptera were USA (104), Australia (8), Canada (7), New Zealand (6), Italy (3), Mexico (2), with the remainder with one programme each (Brazil, Czech Republic, France, Hungary, and Spain). Most programs have been undertaken since the 1990’s. Control options exist for the long-term management of Lepidoptera, but most have issues of cost, efficacy or non-target impacts that reduce their acceptance. Pheromone-based technologies are increasingly available and are generally highly compatible with other tactics. The development of tactics for new targets is a major undertaking, although previous programs can be invaluable. New and improved socially-acceptable technologies are needed to counteract range expansion in Lepidoptera, and usually need to be used in combinations to achieve eradication. The sterile insect technique, which involves mass-rearing and release of sterile insects to reduce wild populations of the pest, has been used successfully against a number of lepidopteran species. Several sterile moth programs are under development. New technologies must have a social license to operate in urban areas, where new incursions are frequently detected. This factor is likely to reduce tactical flexibility and increase the complexity of insect eradication.

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Effect of irradiation on female painted apple moth Teia anartoides (Lep., Lymantriidae) sterility and attractiveness to males

Cited by 12 publications

References 12 publications

Attractiveness and competitiveness of irradiated light brown apple moths

Attractiveness and competitiveness of irradiated light brown apple moths

Evidence of active or passive downwind dispersal in mark–release–recapture of moths

Global range expansion of pest Lepidoptera requires socially acceptable solutions

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