Effects of Diet, Ginger Root Oil, and Elevation on the Mating Competitiveness of Male Mediterranean Fruit Flies (Diptera: Tephritidae) from a Mass-Reared, Genetic Sexing Strain in Guatemala

Shelly, Todd E.; Rendón, Pedro; Hernández, Emilio; Salgado, Sergio; McInnis, Donald O.; Villalobos, Ethel M.; Liedo, Pablo

doi:10.1093/jee/96.4.1132

Cited by 30 publications

(29 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Some efforts have been made to decrease the negative effects of the production and sterilization process (Fisher 1997;Calkins and Parker 2005;Parker 2005) and to enhance sterile male sexual performance (McInnis et al 2002;Shelly and Kennelly 2002;Yuval et al 2007). The exposure of C. capitata sterile males to ginger root oil (GRO) volatiles before they are released is a simple procedure that can be implemented on a large scale (Shelly et al 2004a,b), allowing lower overflooding ratios in the field (Barry et al 2003) as sterile male mating competitiveness may be increased by up to three times (Shelly and McInnis 2001;McInnis et al 2002;Shelly et al , 2003Paranhos et al 2008). However, the sterile males either exposed or not to GRO exhibit similar dispersal behaviour and post-release survival in the field (Paranhos et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Exposure of sterile Mediterranean fruit fly (Diptera: Tephritidae) males to ginger root oil reduces female remating

Morelli

Paranhos

Coelho

et al. 2010

J Applied Entomology

View full text Add to dashboard Cite

Females of Ceratitis capitata are facultative polyandrous, with remating more common in laboratory strains rather than wild ones. In the application of the Sterile Insect Technique (SIT) against this pest, large overflooding ratios of sterile : wild males can increase the remating frequency. Females that mate for the first time with a sterile male tend to remate more frequently. The exposure of sterile males to ginger root oil (GRO) is used in C. capitata SIT programmes to increase the sterile male mating success. Exposing males to an ‘aromatherapy’ with GRO may also increase the remating frequency among wild females. The frequency of wild females remating, number of matings per female, the refractory period between the first and second mating, and the duration of the first and second matings of wild females were determined under laboratory conditions for three mating scenarios that included wild males only or wild males competing with sterile males (either GRO‐treated or non‐treated). Wild females first mated with sterile males exposed to GRO had their remating rate over the following 6 days and the mean number of matings per female reduced in comparison to those first mated with non‐exposed sterile males, from 62.5% to 32.2% and from 3.1 to 1.6 respectively. The remating parameters of females mated with sterile GRO‐exposed males resembled those of females mated with wild males.

show abstract

Section: Introductionmentioning

confidence: 99%

Exposure of sterile Mediterranean fruit fly (Diptera: Tephritidae) males to ginger root oil reduces female remating

Morelli

Paranhos

Coelho

et al. 2010

J Applied Entomology

View full text Add to dashboard Cite

show abstract

“…Studies have focused on decreasing the negative effects of mass-production and irradiation (Fisher 1997;Fisher and Cá ceres 2000;Calkins and Parker 2005;Parker 2005) and on understanding and enhancing the sexual performance of sterile males (Yuval et al 1998;Hendrichs et al 2002;McInnis et al 2002;Shelly and Kennelly 2002). The exposure of sterile males of C. capitata to the aroma of ginger root oil (GRO), Zinziber officinalis Roscoe, before release is a simple procedure, feasible on a large scale (Shelly et al 2004a; that might allow a lower over-flooding ratio in the field (Barry et al 2003) whilst increasing the mating performance of sterile males up to three-fold (Shelly and McInnis 2001;McInnis et al 2002;Shelly et al , 2003Shelly et al , 2007aParanhos et al 2008). Aromatherapy using GRO does not affect the dispersion or survival of sterile males under field conditions (Shelly et al 2004aParanhos et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Optimum dose of ginger root oil to treat sterile Mediterranean fruit fly males (Diptera: Tephritidae)

Paranhos

McInnis

Morelli³

et al. 2010

J Applied Entomology

View full text Add to dashboard Cite

The sterile insect technique (SIT) is widely used as part of an integrated approach to reduce field populations of the Mediterranean fruit fly (Ceratitis capitata, Diptera: Tephritidae). Aromatherapy based on exposure to ginger root oil (GRO) volatiles is known as a method to significantly improve the sexual performance of sterile medfly males, and is being used in many mass‐rearing facilities around the world. However, the optimum dose of GRO is not well defined. This work evaluated in laboratory cages four different doses of GRO and a control (0, 0.1, 0.25, 0.5 and 0.75 ml/m3), and two different methods to hold flies prior to release (paper bags and plastic cages). The objective was to find the lowest dose that provides optimal improvement in mating performance of sterile males when competing with wild males for wild females and optimal reduction in fertility of wild females. Egg hatch, copula duration, the Relative Sterility Index (RSI), and a Competitiveness (C) value (based on RSI) were calculated for each treatment to assess male sexual performance and induction of sterility. The method used to hold flies did not influence the aromatherapy effect. The mean time spent by wild females in copula with wild males was significantly longer than with sterile males for all treatments, except when sterile males were treated with 0.1 ml of GRO/m3. Amongst all doses studied, it is recommended to apply the lowest dose, 0.1 ml of GRO/m3, since at this dose both the RSI and induced sterility reached the highest levels, and were not statistically different from the 0.25 and 0.5 GRO/m3 doses. Indeed, this dose showed a very significant improvement in the mating competitiveness of sterile males aromatically treated with GRO.

show abstract

“…This method for quantifying male sexual signaling has been shown to be useful for testing the effect of age and time of day on male calling in both laboratory-reared and wild populations of medfly (Papadopoulos et al, 1998;Diamantidis et al, 2008). Males were observed between ages 2-5 days to determine what effect impairment had on sexual maturation and cumulative reproductive effort, with peak calling rates expected to be reached at age 4 days, when sexual maturation is typically reached by several laboratory strains (Papadopoulos et al, 1998;Lance et al, 2000;Liedo et al, 2002;Shelly et al, 2003). Observations did not continue beyond age 5 days due to logistical constraints, but there was not expected to be any significant increase in reproductive ability for the laboratory-reared flies beyond the observation period (Papadopoulos et al, 1998).…”

Section: Behavioral Effects Of Impairmentmentioning

confidence: 99%

Leg impairment magnifies reproductive costs in male Mediterranean fruit flies, Ceratitis capitata

Harwood

Vargas²,

Carey

2013

Entomologia Exp Applicata

View full text Add to dashboard Cite

Injuries frequently accumulate with age in nature. Despite the commonality of injury and the resulting impairment, there are limited experimental data for the effects of impairment on life history trade-offs between reproduction and survival in insects. We tested the effects of artificial injury and the resulting impairment on the reproductive costs and behavior of male medflies, Ceratitis capitata (Wiedemann) (Diptera: Tephritidae). Treatment flies were impaired by amputating tarsomere segments 2–5 from the right foreleg at either eclosion or age 22 days. The effect of impairment and age on the cost of reproduction was tested by varying the timing of female availability among the treatments. Courtship behavior and copulation rates were observed hourly from age 2–5 days to determine the effects of impairment on reproductive behavior. Female access combined with the impairment reduced the life expectancy of males more than the impairment alone, whereas the health effect of amputation was influenced by age. Conversely, the risk of death due to impairment was not influenced by the males’ mating status prior to amputation. The males’ copulation success was reduced due to impairment, whereas courtship behavior was not affected. Impairment does not reduce the males’ impulse to mate but decreases the females’ receptivity to copulation, while also increasing the cost of each successful mating. Overall, minor impairment lowers the reproductive success of males and reduces longevity.

show abstract

Effects of Diet, Ginger Root Oil, and Elevation on the Mating Competitiveness of Male Mediterranean Fruit Flies (Diptera: Tephritidae) from a Mass-Reared, Genetic Sexing Strain in Guatemala

Cited by 30 publications

References 0 publications

Exposure of sterile Mediterranean fruit fly (Diptera: Tephritidae) males to ginger root oil reduces female remating

Exposure of sterile Mediterranean fruit fly (Diptera: Tephritidae) males to ginger root oil reduces female remating

Optimum dose of ginger root oil to treat sterile Mediterranean fruit fly males (Diptera: Tephritidae)

Leg impairment magnifies reproductive costs in male Mediterranean fruit flies, Ceratitis capitata

Contact Info

Product

Resources

About