Comparative Fitness of Irradiated Light Brown Apple Moths (Lepidoptera: Tortricidae) in a Wind Tunnel, Hedgerow, and Vineyard

Suckling, D. M.; Stringer, Lloyd D.; Mitchell, Vanessa J; Sullivan, T. E.; Sullivan, N. J.; Simmons, Gregory S.; Barrington, A. M.; El‐Sayed, Ashraf M.

doi:10.1603/ec10394

Cited by 20 publications

(25 citation statements)

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“…There are several ways of assessing the fitness of an insect for SIT, and it is important to select measures that deliver the most relevant information (Simmons et al, 2010). Recent attempts to investigate assays for assessing fitness and improving practicality of mass-reared insects have included flight mills (Sarvary et al, 2008), wind tunnels (Suckling et al, 2004, flight cylinders (Carpenter et al, 2012), and mark-release-recapture rate in field trials (Bloem et al, 1999b;Simmons et al, 2011;Suckling et al, 2005Suckling et al, , 2011. Fertility is also frequently assessed (Toba & Moffitt, 1996;Bloem et al, 1999aBloem et al, , 2003Soopaya et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

“…Irradiation lowers the fitness of Lepidoptera in a life stage and dose‐dependent fashion [e.g., C. pomonella (Bloem et al., , ); E. postvittana (Suckling et al., ); T. anartoides (Suckling et al., )]. It negatively affects fecundity and fertility [e.g., Thaumatotibia leucotreta (Meyrick) (Bloem et al., ); C. pomonella (Bloem et al., ); Epiphyas postvittana (Soopaya et al., )].…”

Section: Introductionmentioning

confidence: 99%

“…It negatively affects fecundity and fertility [e.g., Thaumatotibia leucotreta (Meyrick) (Bloem et al., ); C. pomonella (Bloem et al., ); Epiphyas postvittana (Soopaya et al., )]. Irradiation of male E. postvittana has a negative effect on male flight performance (Suckling et al., ), and an estimate of the magnitude of this effect has been used to improve the accuracy of a model to determine the critical overflooding ratio of irradiated E. postvittana (Kean 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: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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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“…org/tech/pest/bollworm/). Lepidoptera species are more radiation tolerant than many other insect orders (LaChance, 1985;Bakri et al, 2005) and those high doses of radiation required to achieve full sterility may reduce their competitiveness and performance in the field (Suckling et al, 2011). One approach to circumvent the negative effects associated with the high radiation resistance of lepidopteran pests is to use an approach called inherited sterility or F1 sterility.…”

Section: Introductionmentioning

confidence: 99%

Gamma irradiation of the carob or date moth Ectomyelois ceratoniae: dose–response effects on egg hatch, fecundity, and survival

Chakroun

Rempoulakis

Lebdi-Grissa

et al. 2017

Entomologia Exp Applicata

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The dose-response effects of gamma radiation on the carob or date moth Ectomyelois ceratoniae (Zeller) (Lepidoptera: Pyralidae) were studied as a basic requirement for the initiation of an SIT/F1 sterility program. In this study, the effect of gamma radiation was determined on fecundity, egg hatch, longevity, and level of inherited sterility in the carob moth. Newly emerged virgin male and female carob moth adults were exposed to increasing irradiation doses (100, 150, 200, 250, 300, and 350 Gy) to determine the effective dose of gamma rays capable of sterilizing male and female adults of the carob moth. Parental fecundity and longevity was affected by increasing irradiation dose. The results indicated that a dose of 350 Gy could completely sterilize carob moth males. No larvae hatched from eggs deposited by 300 Gy irradiated females. The data indicate that 300 Gy was the fully sterilizing dose for female and sub-sterilizing dose for male carob moth. Radiation-induced deleterious inherited effects in offspring from irradiated males and females were expressed as reduction in fecundity, egg hatch, longevity, and decreased adult emergence over subsequent generations.

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“…The apparent social sensitivity of urban Californians to aerial application of pheromone (Suckling and Brockerhoff 2010) led to investigation of the sterile insect technique (Kean et al 2011, Soopaya et al 2011, Suckling et al 2011c, because it appears that the release of sterile insects attracts less societal opposition than aerial sprays (Gamble et al 2010). Because of a need for less obtrusive tactics, a new technique called "mobile mating disruption" (Suckling et al 2011b) has been developed and tested in an urban environment.…”

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confidence: 99%

Communication Disruption of <I>Epiphyas postvittana</I> (Lepidoptera: Tortricidae) By Using Two Formulations at Four Point Source Densities in Vineyards

Suckling

Brockerhoff

Stringer³

et al. 2012

jnl. econ. entom.

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Executive SummaryWe conducted this economic analysis at the request of USDA-APHIS-PPQ-EDP. Our objective was to quantitatively characterize the economic costs to apple, grape, orange and pear crops that would result from the introduction of the light brown apple moth (LBAM), Epiphyas postvittana, into the conterminous United States. This information can be used to inform regulatory policy and funding decisions regarding LBAM.Our economic analysis had two components: 1) a geospatial analysis that identified areas at risk for LBAM establishment based on climate and hosts and 2) a quantitative analysis, using a probabilistic modeling approach, which estimated the economic losses LBAM could cause if introduced into these areas due to damage, control, quarantines and research. Economic effects outside of the agricultural crop (apple, grape, orange and pear) production sector, e.g. trade effects, are beyond the scope of this analysis and are not provided.Our geospatial analysis estimated that LBAM could establish throughout the majority of the conterminous United States. This establishment range included the majority of the growing area for the analyzed crops.Our quantitative model estimated the mean total annual costs if LBAM were introduced in the at-risk areas to be $118 million. The 5 th and 95 th percentile values were: $86 million and $150 million, i.e. 95 percent of the time, total annual costs exceeded $86 million.The combined results of our geospatial and quantitative analyses indicate that LBAM could cause substantial economic losses to U.S. apple, grape, orange and pear crops if introduced throughout the conterminous United States. We note LBAM is highly polyphagous and would probably cause additional economic damage to other crops and sectors of the U.S. economy, e.g. domestic and international trade. Also, because LBAM can occur in nursery stock,

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Comparative Fitness of Irradiated Light Brown Apple Moths (Lepidoptera: Tortricidae) in a Wind Tunnel, Hedgerow, and Vineyard

Cited by 20 publications

References 15 publications

Attractiveness and competitiveness of irradiated light brown apple moths

Attractiveness and competitiveness of irradiated light brown apple moths

Gamma irradiation of the carob or date moth Ectomyelois ceratoniae: dose–response effects on egg hatch, fecundity, and survival

Communication Disruption of <I>Epiphyas postvittana</I> (Lepidoptera: Tortricidae) By Using Two Formulations at Four Point Source Densities in Vineyards

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