Effect of Substerilizing Doses of Radiation on Sperm Precedence in Fall Armyworm (Lepidoptera: Noctuidae)

Carpenter, James E.; Rayani, Hid; Nelly, Novri; Mullinlx, B. G.

doi:10.1093/jee/90.2.444

Cited by 17 publications

(9 citation statements)

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“…The detailed karyotype analysis of non-irradiated T. absoluta larvae allowed us to identify radiation-induced chromosomal aberrations in F 1 individuals, as was previously done in other Lepidoptera species (Saifutdinov 1989;Al-Taweel et al 1990;Carpenter 1991;Carpenter et al 1997;Makee & Tafesh 2006). The presence of sex chromatin in this species is a useful parameter for monitoring the effect of radiation, as its morphology and quantity can be used as a marker to identify sex chromosome aberrations (Makee & Tafesh 2006).…”

Section: Discussionmentioning

confidence: 91%

The Effect of X-Rays on Cytological Traits ofTuta absoluta(Lepidoptera: Gelechiidae)

Paladino¹,

Ferrari²,

Lauría³

et al. 2016

Florida Entomologist

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Section: Discussionmentioning

confidence: 91%

The Effect of X-Rays on Cytological Traits ofTuta absoluta(Lepidoptera: Gelechiidae)

Paladino¹,

Ferrari²,

Lauría³

et al. 2016

Florida Entomologist

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“…As reported in previous studies , the beneÞcial effects of diapause rearing were observed not only in the spring (May) when evening temperatures were low but also in July when evening temperatures remained high. The beneÞts of using the lowest possible dose of radiation to sterilize released moths are also well known (North and Holt 1968, Toba et al 1972, Carpenter et al 1997. For the codling moth, Bloem et al (1999b have previously reported improvements in trap recapture rates, mating competitiveness, and dispersal ability at lower doses of radiation.…”

Section: Discussionmentioning

confidence: 99%

Effect of Rearing Strategy and Gamma Radiation on Field Competitiveness of Mass-Reared Codling Moths (Lepidoptera: Tortricidae)

Bloem¹,

Carpenter²,

Bloem³

et al. 2004

Journal of Economic Entomology

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We compared the Þeld competitiveness of sterile codling moth, Cydia pomonella (L.), males mass-reared through diapause or standard production protocols and treated with either 150 or 250 Gy of gamma radiation. Evaluations were performed during spring and summer 2003 by using Þeld releaseÐrecapture tests. Released males were recaptured using traps baited with synthetic pheromone or with virgin females. In addition, mating tables baited with virgin females were used in the summer to assess the mating competitiveness of the released moths. Field performance of released males was signiÞcantly improved by rearing through diapause and by lowering the dose of radiation used to treat the insects. These effects were observed during spring when evening temperatures were relatively cool and in summer when evening temperatures were high. These effects were observed regardless of the sampling method (i.e., capture in pheromone-baited traps, virgin female-baited traps, or in mating tables). There were signiÞcant interactions between larval rearing strategy and radiation dose with respect to day of recapture. The effect of rearing strategy on male performance was observed immediately after release, whereas the effect of dose of radiation was usually delayed by 2Ð3 d. In general, the best treatment for improving codling moth male Þeld 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 diapause rearing may attenuate some of the negative effects of the higher doses of radiation.

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“…In an earlier study, complete sperm precedence was observed during multiple matings involving non-irradiated male S. litura and males that were treated with the sterilizing gamma dose of 250 Gy (Seth et al 2002). Carpenter et al (1997) reported that in the fall armyworm, S. frugiperda, the sperm complements from males irradiated with 100 Gy were successfully competitive with sperm complements from non-irradiated males, but sperm competitiveness was reduced in males irradiated with 150 Gy.…”

Section: Irradiation Impact On Sperm Use Pattern During Mul-tiple Matingmentioning

confidence: 98%

“…The lower sub-sterilizing radiation dose used to induce F 1 sterility better maintains the quality and competitiveness of the released insects as evidenced by improved dispersal after release, increased mating ability, and superior sperm competition. The effect of irradiation on behavioral characteristics of various lepidopteran pest species is well documented (Carpenter et al 1997(Carpenter et al , 2005. The ability of sterile insects to fly and disperse after their release in the field is an essential attribute, because those insects that cannot fly to shelter or reach a food source, or find mating arenas are unfit for a control program that has an IS component.…”

Section: Introductionmentioning

confidence: 99%

Flight Activity and Mating Behavior of IrradiatedSpodoptera litura(Lepidoptera: Noctuidae) Males and Their F₁Progeny for Use of Inherited Sterility in Pest Management Approaches

Seth

Khan

Rao

et al. 2016

Florida Entomologist

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The dose of radiation applied to the Oriental leafworm (also known as the common cutworm), Spodoptera litura (F.) (Lepidoptera: Noctuidae) for use in inherited sterility (IS) sterility programs must not materially reduce the quality and competitiveness of the released males. To assess the quality of sub-sterilized male moths and their F 1 progeny, their flight and mating behaviors were investigated. Thus, parental (P) generation S. litura males that had been irradiated with either 100 or 130 Gy and their F 1 male descendants were subjected to flight assay tests to assess flight ability, orientation towards a pheromone source and mating behavior, i.e., mating performance using various sex ratios, sequential matings, and effect of female age. The orientation behavior of either P or F 1 males towards pheromone-baited traps was not different from that of non-irradiated males. Mating abilities of irradiated P generation males and their F 1 male progeny with non-irradiated females were studied using several sex ratios, but large differences were not found even when the sex ratio was increased from 1:1 to 5:1. A study on sperm use patterns revealed the precedence of sperm of the last male to mate, for example, when a non-irradiated female was sequentially mated with a non-irradiated P male, followed by an irradiated P male and finally by an F 1 male, as well as in all other possible sequences of such males. Mating success, remating propensity and fertility were significantly influenced by mating sequences that included irradiated males. Further, the age of the female at the first mating influenced fertility in matings with F 1 males, and mating success and remating propensity were reduced in several of sequences of matings involving non-irradiated and irradiated males and F 1 males, with reductions being more apparent when females were aged 5-6 d. The present study indicates that gamma doses of either 100 or 130 Gy are suitable for the suppression of S. litura using an IS approach.

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Effect of Substerilizing Doses of Radiation on Sperm Precedence in Fall Armyworm (Lepidoptera: Noctuidae)

Cited by 17 publications

References 0 publications

The Effect of X-Rays on Cytological Traits ofTuta absoluta(Lepidoptera: Gelechiidae)

The Effect of X-Rays on Cytological Traits ofTuta absoluta(Lepidoptera: Gelechiidae)

Effect of Rearing Strategy and Gamma Radiation on Field Competitiveness of Mass-Reared Codling Moths (Lepidoptera: Tortricidae)

Flight Activity and Mating Behavior of IrradiatedSpodoptera litura(Lepidoptera: Noctuidae) Males and Their F₁Progeny for Use of Inherited Sterility in Pest Management Approaches

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Effect of Substerilizing Doses of Radiation on Sperm Precedence in Fall Armyworm (Lepidoptera: Noctuidae)

Cited by 17 publications

References 0 publications

The Effect of X-Rays on Cytological Traits ofTuta absoluta(Lepidoptera: Gelechiidae)

The Effect of X-Rays on Cytological Traits ofTuta absoluta(Lepidoptera: Gelechiidae)

Effect of Rearing Strategy and Gamma Radiation on Field Competitiveness of Mass-Reared Codling Moths (Lepidoptera: Tortricidae)

Flight Activity and Mating Behavior of IrradiatedSpodoptera litura(Lepidoptera: Noctuidae) Males and Their F1Progeny for Use of Inherited Sterility in Pest Management Approaches

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Flight Activity and Mating Behavior of IrradiatedSpodoptera litura(Lepidoptera: Noctuidae) Males and Their F₁Progeny for Use of Inherited Sterility in Pest Management Approaches