Different methods of methyl eugenol application enhance the mating success of male Oriental fruit fly (Dipera: Tephritidae)

Haq, İhsan Ul; Cáceres, Carlos; Meza, José S.; Hendrichs, Jorge; Vreysen, Marc J. B.

doi:10.1038/s41598-018-24518-5

Cited by 21 publications

(31 citation statements)

References 42 publications

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“…Whiskers represent 1.5 times the interquartile range. The distribution of the variable is illustrated as density curves air-blown system, has similar positive results on male mating success (Haq et al, 2018). In future studies, ME aromatherapy could be used to determine whether the negative effect of ME on sperm transfer is offset when it is not ingested by males.…”

Section: Discussionmentioning

confidence: 90%

“…For example, B. carambolae males either exposed to ME (through aromatherapy) or fed with ME, increase their mating success as compared to untreated males (Haq, Vreysen, Cacéres, et al, ). Recently, it has been shown that exposure to ME either through feeding, aromatherapy or using an air‐blown system, has similar positive results on male mating success (Haq et al, ). In future studies, ME aromatherapy could be used to determine whether the negative effect of ME on sperm transfer is offset when it is not ingested by males.…”

Section: Discussionmentioning

confidence: 98%

“…Proteins are synthesized as structural and catalytic components in most cellular reactions (Torres‐Cabra, Hernández‐Fernández, & Pérez‐Rubiano, ); thus, whole body protein content can be an important indicator of overall male quality. Protein content may impact male pheromone production and energy expenditure in courtship resulting in overall higher copulatory success for ME‐fed males (Haq et al, ; Kumaran et al, ; Shelly & Dewire, ). Improved male copulatory success could be due to increased female attraction to a higher quality male and/or increased success through intrasexual competition.…”

Section: Discussionmentioning

confidence: 99%

“…Protein content may impact male pheromone production and energy expenditure in courtship resulting in overall higher copulatory success for ME-fed males (Haq et al, 2018;Kumaran et al, 2013;Shelly & Dewire, 1994). Improved male copulatory success could be due to increased female attraction to a higher quality male and/or increased success through intrasexual competition.…”

Section: Discussionmentioning

confidence: 99%

“…When females were bioassayed for their attractiveness to ME metabolites, they showed higher attractiveness to rectal glands of ME-fed males (Hee & Tan, 1998;Khoo, Yuen, & Tan, 2000;Tan & Nishida, 1996). However, some studies proposed that some other mechanisms, in addition to pheromones, may also be involved in enhancing the male's copulatory success (Haq, 2018;Kumaran, Balagawi, Schutze, & Clarke, 2013). The other advantage of consuming ME is that it can increase predation evasion particularly against vertebrate predators (Wee & Tan, 2001).…”

Section: Pérezmentioning

confidence: 99%

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Methyl eugenol effects on Bactrocera dorsalis male total body protein, reproductive organs and ejaculate

Reyes‐Hernández

Thimmappa

Abraham

et al. 2018

J Applied Entomology

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Methyl eugenol (ME) and inclusion of protein into the adult diet increase the mating competitiveness of the Oriental fruit fly, Bactrocera dorsalis (Hendel). Exposing males to ME or protein is a promising post‐teneral treatment for males being released in the sterile insect technique (SIT). However, the effect of this post‐teneral treatment on male reproductive organs or the male ejaculate is unknown. During mating, males transfer sperm and accessory gland products (AGPs) to females and these compounds are reported to modulate female sexual inhibition. We studied the impact of male exposure to ME and a yeast hydrolysate (YH) diet on the protein reserves of males, male reproductive organ size, and the male ejaculate through sperm and AGPs. We show that males exposed to ME regardless of access to YH accumulated a greater amount of whole body protein. Males fed on YH also had increased total body protein and had bigger reproductive organs than YH‐deprived males, but no apparent effect of ME exposure was observed on reproductive organ size. Females stored less sperm when mated with males fed on YH and ME compared to males not fed on ME. YH and ME had no effect on male AGPs. Females injected with AGPs of males fed on YH and exposed to ME were just as likely to mate as females injected with AGPs of non‐treated males. However, females injected with AGPs of males exposed to ME mated faster than females injected with AGPs of non‐exposed males. We conclude that while exposure to ME increases male copulatory success and protein reserves in the male body, there seem to be some potential trade‐offs such as lower sperm stored by females. We discuss our results in terms of pre‐release protocols that may be used for B. dorsalis in SIT application.

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Section: Discussionmentioning

confidence: 90%

Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Pérezmentioning

confidence: 99%

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Methyl eugenol effects on Bactrocera dorsalis male total body protein, reproductive organs and ejaculate

Reyes‐Hernández

Thimmappa

Abraham

et al. 2018

J Applied Entomology

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Insecticides and ovarian functions

Sharma

Singh

Setia

et al. 2020

Environ and Mol Mutagen

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Insecticides, a heterogeneous group of chemicals, are widely used in agriculture and household practices to avoid insect‐inflicted damage. Extensive use of insecticides has contributed substantially to agricultural production and the prevention of deadly diseases by destroying their vectors. On the contrary, many of the insecticides are associated with several adverse health effects like neurological and psychological diseases, metabolic disorders, hormonal imbalance, and even cancer in non‐target species, including humans. Reproduction, a very selective process that ensures the continuity of species, is affected to a greater extent by the rampant use of insecticides. In females, exposure to insecticides leads to reproductive incapacitation primarily through disturbances in ovarian physiology. Disturbed ovarian activities encompass the alterations in hormone synthesis, follicular maturation, ovulation process, and ovarian cycle, which eventually lead to decline in fertility, prolonged time‐to‐conceive, spontaneous abortion, stillbirths, and developmental defects. Insecticide‐induced ovarian toxicity is effectuated by endocrine disruption and oxidative stress. Oxidative stress, which occurs due to suppression of antioxidant defense system, and upsurge of reactive oxygen and nitrogen species, potentiates DNA damage and expression of apoptotic and inflammatory markers. Insecticide exposure, in part, is responsible for ovarian malfunctioning through disruption of hypothalamic–pituitary–gonadal axis. The current article is focused on the adverse effects of insecticides on ovarian functioning, and consequently, on the reproductive efficacy of females. The possible strategies to combat insecticide‐induced toxicity are also discussed in the latter part of this review. Environ. Mol. Mutagen. 61:369–392, 2020. © 2020 Wiley Periodicals, Inc.

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Methyl eugenol aromatherapy: a delivery system facilitating the simultaneous application of male annihilation and sterile insect technique against the peach fruit fly

Rasool,

Fatima,

Shah

et al. 2023

Pest Management Science

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BackgroundThe peach fruit fly, Bactrocera zonata (Saunders) (Diptera: Tephritidae) is an economically important polyphagous, quarantine pest endemic to South and South‐East Asia. The male annihilation technique (MAT) and the sterile insect technique (SIT) are environmentally benign techniques used to suppress fruit fly populations on an area‐wide basis. The MAT and SIT are typically used sequentially to avoid killing released sterile males; however, the MAT and SIT could potentially be used simultaneously and thereby increase the overall efficiency of control programmes. Mating competitiveness of sterile males against wild counterparts is critical for the success of the SIT. Feeding on a semiochemical, methyl eugenol (ME) has been reported to enhance the male mating performance of many Bactrocera spp., including B. zonata, but its use in SIT operational programmes is limited due to the absence of a viable delivery system.ResultsIn the present study, we demonstrated that ME aromatherapy, a practical method for large‐scale delivery of ME olfactorily, enhances the mating success of treated B. zonata males. ME aromatherapy application to 5 day old immature males for a duration of 5 h resulted in increased mating success of males tested when sexually mature, compared to untreated males. The ME‐aromatized males also exhibited reduced attraction to ME‐lure.ConclusionA practical delivery system for applying ME by aromatherapy to mass‐reared males was developed. ME‐aromatherapy enhanced male mating success and suppressed their subsequent attraction to ME, thus enabling the application of MAT and SIT at the same time.This article is protected by copyright. All rights reserved.

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Different methods of methyl eugenol application enhance the mating success of male Oriental fruit fly (Dipera: Tephritidae)

Cited by 21 publications

References 42 publications

Methyl eugenol effects on Bactrocera dorsalis male total body protein, reproductive organs and ejaculate

Methyl eugenol effects on Bactrocera dorsalis male total body protein, reproductive organs and ejaculate

Insecticides and ovarian functions

Methyl eugenol aromatherapy: a delivery system facilitating the simultaneous application of male annihilation and sterile insect technique against the peach fruit fly

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