Improving the Efficacy of the Sterile Insect Technique for Fruit Flies by Incorporation of Hormone and Dietary Supplements into Adult Holding Protocols

Teal, Peter E. A.; Gómez-Simuta, Yeudiel; Dueben, Barbara D.; Holler, Tim; Olson, Shelley

doi:10.1007/978-1-4020-6059-5_14

Cited by 39 publications

(59 citation statements)

References 5 publications

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“…Likewise in the West Indies fruit fly, Anastrepha obliqua Macquart, and the Mexican fruit fly, Anastrepha ludens (Loew), yeast hydrolysate in the diet increases egg load (Aluja et al., 2001). For male Caribbean fruit flies, Anastrepha suspensa Loew, yeast hydrolysate activates key regulatory genes and enzymes required for the synthesis of the sex pheromone by which they attract females (Teal et al., 2007). In A. ludens and A. obliqua pheromone production increases for males fed yeast hydrolysate compared to sucrose‐fed males (Liedo et al., 2011).…”

Section: Introductionmentioning

confidence: 99%

Sex differences in developmental response to yeast hydrolysate supplements in adult Queensland fruit fly

Pérez‐Staples

Weldon

Taylor

2011

Entomologia Exp Applicata

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Post‐teneral dietary supplements have been found to improve mating performance of male Bactrocera tryoni (Froggatt) (Diptera: Tephritidae) (Q‐fly) and show considerable promise for enhancement of sterile insect technique (SIT) programmes even when applied within the current 48 h pre‐release holding period. However, Q‐flies are released as a bisexual strain, and the positive effects of a diet including yeast hydrolysate for males may also boost reproductive development and sexual performance of females. Increased prevalence of mature sterile females can substantially dilute SIT efficacy as mating capacity of sterile males is largely depleted by sterile females rather than the relatively rare wild females. Here, we demonstrate that providing yeast hydrolysate for 48 h after adult emergence, emulating the current pre‐release holding period of Q‐fly SIT, leads to a significant increase in reproductive development and sexual performance in male Q‐flies. In contrast, female Q‐flies with access to yeast hydrolysate for 48 h had ovaries that were poorly developed and, particularly at younger ages, were less likely to mate and remate than females with continuous, ad libitum access to yeast hydrolysate. Our findings suggest that addition of yeast hydrolysate into the pre‐release diet of Q‐flies could be a cost‐effective means of releasing a bisexual strain with competitive males but with sexually immature females, thereby rendering it operationally more similar to a unisexual strain.

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Section: Introductionmentioning

confidence: 99%

Sex differences in developmental response to yeast hydrolysate supplements in adult Queensland fruit fly

Pérez‐Staples

Weldon

Taylor

2011

Entomologia Exp Applicata

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“…In A. obliqua , topical applications of fenoxycarb and methoprene (JH analogues) accelerated the sexual maturity of males, three and 2 days, respectively, earlier than untreated males (Teal et al. ). In A. ludens , topical application of methoprene (M) accelerated the calling behaviour (release of pheromone) in 90% of treated males, 4 days earlier than the untreated males (Gómez–Simuta and Teal ).…”

Section: Introductionmentioning

confidence: 99%

Precocious Mexican fruit fly methoprene‐fed males inhibit female receptivity and perform sexually as mature males

Gómez-Simuta

Diaz-Fleisher

Arredondo

et al. 2016

J Applied Entomology

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The sterile insect technique (SIT) has been used successfully for the control of fruit flies. The efficiency of this technique can be significantly reduced when sterile released insects are exposed to adverse conditions and predators, as a great number of sterile insects die before reaching sexual maturity and thus fail to mate with wild females. Treatments with juvenile hormone (JH) analogues such as methoprene (M) significantly reduce the time to reach sexual maturity by sterile Anastrepha ludens (Loew) (Diptera: Tephritidae) males. In this study, we compared the sexual performance of non‐treated sexually mature males with young males that had been sexually accelerated with M. Furthermore, we compared the ability of M‐fed males in inhibiting female remating compared with sexually mature males. Results showed that at 5 days M‐fed males had lower mating success than mature males; however, 6‐day‐old (0.1%) M‐fed males had the same amount of matings as mature 13‐day‐old males. Young 5‐ to 10‐day‐old M‐fed males also had similar number of matings as mature non‐treated 12‐ to 17‐day‐old males. There were no differences in copula duration between treatments. Moreover, there were no differences between the fertility, fecundity or refractory period of females mated with either young male fed M or normal sexually mature males. These results indicated that young males that were sexually accelerated with M have the same sexual performance as non‐treated sexually mature males. Implications of using M as a pre‐release treatment for A. ludens controlled through SIT are discussed.

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“…2007). A good example of this is the process of sexual maturation, which can be particularly long in some species of Anastrepha (7–8 days) and Bactrocera (2–4 weeks) when compared to C. capitata (3–4 days) (Teal et al. 2007; Faria et al.…”

Section: Introductionmentioning

confidence: 99%

“…2000; Pereira 2005; Pereira et al. 2009), Anastrepha ludens (Loew) and Anastrepha obliqua (Macquart) (Teal et al. 2007).…”

Section: Introductionmentioning

confidence: 99%

Methoprene treatment reduces the pre‐copulatory period in Anastrepha fraterculus (Diptera: Tephritidae) sterile males

Segura

Utgés

Liendo

et al. 2010

J Applied Entomology

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Anastrepha fraterculus is a major fruit pest in South America. Ongoing studies support the implementation of the sterile insect technique (SIT) against this pest. Sexual readiness of sterile males is a key point for SIT application. The pre‐copulatory period of A. fraterculus males has not been reported before, but it is expected to last several days. An acceleration of sexual maturation was achieved in other Anastrepha species after topical applications of juvenile hormone analogues, like methoprene. Here, we studied the effect of methoprene on male sexual maturation, mating duration and sperm transfer in A. fraterculus as well as the impact of acetone (methoprene solvent) on survival. We also explored a method to deliver methoprene massively. Pheromone‐calling and mating ability were evaluated daily from adult emergence, and used as indicators of sexual maturity. Anastrepha fraterculus males showed a long pre‐copulatory period (7 days approximately), as other Anastrepha species. This process was accelerated after methoprene treatment (2.5 μg/μl), both in non‐irradiated and irradiated males which matured 2–3 days earlier. Mating duration for methoprene‐treated males was longer than for mature untreated males, however, no differences in sperm transfer were detected. Survival was not affected by acetone. Dipping pupae in methoprene allowed emerging males to mature as fast as those receiving topical application as adults. Dipping of pupae is a promising method to deliver massively methoprene and should be further investigated.

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Improving the Efficacy of the Sterile Insect Technique for Fruit Flies by Incorporation of Hormone and Dietary Supplements into Adult Holding Protocols

Cited by 39 publications

References 5 publications

Sex differences in developmental response to yeast hydrolysate supplements in adult Queensland fruit fly

Sex differences in developmental response to yeast hydrolysate supplements in adult Queensland fruit fly

Precocious Mexican fruit fly methoprene‐fed males inhibit female receptivity and perform sexually as mature males

Methoprene treatment reduces the pre‐copulatory period in Anastrepha fraterculus (Diptera: Tephritidae) sterile males

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