Area-Wide Management of Fruit Flies (Diptera: Tephritidae) in Hawaii

Vargas, Roger I.; Piñero, Jaime C.; Leblanc, Luc; Manoukis, Nicholas C.; Mau, Ronald F. L.

doi:10.1007/978-3-319-43226-7_29

Cited by 22 publications

(25 citation statements)

References 32 publications

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“…() recommended the application of protein bait sprays to maize borders planted around crop areas to attract flies moving from adjacent non‐crop roosting sites into cultivated areas. The Hawaii Area‐Wide Fruit Fly Pest Management (AWPM) Program (Vargas et al., ) was also built on this ecological approach in a comprehensive program for Z. cucurbitae control that included sanitation, protein baits, and male‐lure stations incorporating reduced‐risk insecticides and methods of deployment that conserves natural enemies (Vargas et al., ).…”

Section: Discussionmentioning

confidence: 99%

“…In recent years, the concept of an area‐wide management approach has gradually shifted grower practices from a single tactic cover spray to multiple tactics in an integrated pest management (IPM) program (Vargas et al., ). For the last 15 years, extensive efforts have been invested into true integration of the components of an IPM management program for fruit flies (Vargas et al., ). ‘Attract‐and‐kill’ methods using insecticide‐laced male lures [i.e., methyl eugenol (ME) and cue‐lure (C‐L)] reduce fruit fly populations by removing large numbers of males (male annihilation technique or MAT).…”

Section: Introductionmentioning

confidence: 99%

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Suppression of female melon fly, Zeugodacus cucurbitae, with cue‐lure and fipronil bait stations through horizontal insecticide transfer

Spafford

Chou

Mau

et al. 2018

Entomologia Exp Applicata

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Melon fly, Zeugodacus cucurbitae (Coquillett) (Diptera: Tephritidae), is an important quarantine tephritid fruit fly with resident populations established in Hawai'i, USA. In the male‐annihilation approach, male flies are targeted using dispensers with cue‐lure (C‐L) and insecticides, typically organophosphates. The efficacy of the male annihilation approach is thought to be limited to individual male flies, contacting the lure and the pesticide, after which they die. Alternative classes of insecticides, such as fipronil, have been investigated for use in male‐annihilation. We hypothesized that ingestion of fipronil by male flies could lead to horizontal transfer and mortality in female flies. Horizontal insecticide transfer extends pesticide control beyond the individual contacting the toxicant through indirect contact via food sharing or other mechanisms. We tested the possibility for horizontal transfer of fipronil from male to female Z. cucurbitae through field and laboratory studies. Two repeated field trials were conducted to compare the numbers of female flies collected in fields treated with Amulet C‐L (0.34% fipronil active ingredient) bait stations, sanitation, and spot treatments of GF‐120 Fruit Fly Bait to numbers collected in fields where sanitation and spot‐treatments were used without Amulet C‐L. In fields with Amulet C‐L bait stations in conjunction with sanitation and weekly protein bait spot treatments of GF‐120 Fruit Fly Bait, female captures were significantly lower than those in field plots treated with weekly protein bait spot treatments and sanitation. In subsequent laboratory studies, all females died within 6 h after direct exposure to male flies that had access to Amulet C‐L for 1–4 min. The possibility that male regurgitant could be a mechanism for horizontal transfer and subsequent female mortality was determined by collecting regurgitated droplets from fipronil‐fed male flies and feeding them to males and females. Both male and female flies exposed to regurgitant from fipronil‐fed male flies or droplets containing fipronil had higher mortality than the male and female flies that were exposed to regurgitant or droplets with only the C‐L compound or sugar solution. Thus, female flies do experience mortality from exposure to regurgitant from males that have fed on fipronil laced solutions. This provides evidence of at least one mechanism of horizontal transfer of insecticide in tephritid fruit flies. These findings are discussed in the context of Z. cucurbitae integrated pest management programs in Hawai'i.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Suppression of female melon fly, Zeugodacus cucurbitae, with cue‐lure and fipronil bait stations through horizontal insecticide transfer

Spafford

Chou

Mau

et al. 2018

Entomologia Exp Applicata

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“…Interactions with environmental factors influence the foraging behavior of herbivorous insects, not only with a single sensory modality such as olfaction (as demonstrated by their acute response to plant volatiles and insect pheromones), but also by interactions among different sensory modalities, for example vision and olfaction (Dorn & Piñero, 2009). Tephritid fruit flies (Diptera) of the genera Bactrocera and Ceratitis represent highly invasive taxa, and collectively they pose a serious threat to the production and export of horticultural crops around the globe (Papadopoulos, 2014; Vargas et al, 2016). The oriental fruit fly, Bactrocera dorsalis (Hendel), the melon fly, Bactrocera ( Zeugodacus ) cucurbitae (Coquillett), and Ceratitis capitata (Wiedemann) are of particular importance given their pest severity, host range, invasiveness, and frequency of infestation (Vargas et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Synergistic and additive interactions among components of food‐based baits underlie female fruit fly attraction

Piñero

Souder

Vargas

2020

Entomologia Exp Applicata

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Attraction of tephritid fruit flies to some food sources can be enhanced by the presence of ammonia derivatives, compounds that are perceived as volatile cues for protein-rich food sources. Using a comparative approach, we (1) evaluated the behavioral responses of females of three invasive fruit fly species, Bactrocera (Zeugodacus) cucurbitae (Coquillett), Bactrocera dorsalis (Hendel), and Ceratitis capitata (Wiedemann) (all Diptera: Tephritidae) to trub (a protein-rich waste brewer's yeast product generated during the production of beer), Concord grape juice (a protein-deficient material), and ammonium acetate, and (2) identified synergistic and additive interactions between low-and highattractiveness materials and ammonium acetate. We established the attractiveness of fresh trub, grape juice, and ammonium acetate when tested singly to females of all three fly species. Although ammonium acetate did not enhance significantly the response of females of any species to fresh trub, the most attractive material, ammonium acetate, did significantly enhance females' level of response to aged trub (a comparatively less attractive material) and to grape juice. Our research found a synergistic interaction between diluted grape juice and ammonium acetate for B. cucurbitae, as well as between aged trub and ammonium acetate for B. dorsalis. For C. capitata, additive effects among food attractants and ammonium acetate were identified. Our findings increase our understanding of fruit fly female olfactory-driven behavior in response to food-based materials and the extent to which ammonium acetate modulates female response to protein-rich and protein-deficient materials.

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“…The direct damage to hosts caused by female oviposition and the development of the larvae, results in severe losses in fruit and vegetable production. Their economic impact also expands to trade, with strict quarantine measures imposed on shipments originating from infested countries [47][48][49][50]. The reproductive alterations induced by the bacterial symbionts, as well as their role in insect host biology and ecology, could be used in environmentfriendly approaches, such as the sterile insect technique (SIT) and other related techniques, for the area-wide integrated pest management (AW-IPM) of insect pest populations [13,[51][52][53][54][55][56][57][58][59][60][61][62][63][64][65].…”

Section: Introductionmentioning

confidence: 99%

Detection and characterization of bacterial endosymbionts in Southeast Asian tephritid fruit fly populations

et al. 2019

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Background: Various endosymbiotic bacteria, including Wolbachia of the Alphaproteobacteria, infect a wide range of insects and are capable of inducing reproductive abnormalities to their hosts such as cytoplasmic incompatibility (CI), parthenogenesis, feminization and male-killing. These extended phenotypes can be potentially exploited in enhancing environmentally friendly methods, such as the sterile insect technique (SIT), for controlling natural populations of agricultural pests. The goal of the present study is to investigate the presence of Wolbachia, Spiroplasma, Arsenophonus and Cardinium among Bactrocera, Dacus and Zeugodacus flies of Southeast Asian populations, and to genotype any detected Wolbachia strains. Results: A specific 16S rRNA PCR assay was used to investigate the presence of reproductive parasites in natural populations of nine different tephritid species originating from three Asian countries, Bangladesh, China and India. Wolbachia infections were identified in Bactrocera dorsalis, B. correcta, B. scutellaris and B. zonata, with 12.2-42.9% occurrence, Entomoplasmatales in B. dorsalis, B. correcta, B. scutellaris, B. zonata, Zeugodacus cucurbitae and Z. tau (0.8-14.3%) and Cardinium in B. dorsalis and Z. tau (0.9-5.8%), while none of the species tested, harbored infections with Arsenophonus. Infected populations showed a medium (between 10 and 90%) or low (< 10%) prevalence, ranging from 3 to 80% for Wolbachia, 2 to 33% for Entomoplasmatales and 5 to 45% for Cardinium. Wolbachia and Entomoplasmatales infections were found both in tropical and subtropical populations, the former mostly in India and the latter in various regions of India and Bangladesh. Cardinium infections were identified in both countries but only in subtropical populations. Phylogenetic analysis revealed the presence of Wolbachia with some strains belonging either to supergroup B or supergroup A. Sequence analysis revealed deletions of variable length and nucleotide variation in three Wolbachia genes. Spiroplasma strains were characterized as citri-chrysopicola-mirum and ixodetis strains while the remaining Entomoplasmatales to the Mycoides-Entomoplasmataceae clade. Cardinium strains were characterized as group A, similar to strains infecting Encarsia pergandiella. Conclusions: Our results indicated that in the Southeast natural populations examined, supergroup A Wolbachia strain infections were the most common, followed by Entomoplasmatales and Cardinium. In terms of diversity, most strains of each bacterial genus detected clustered in a common group. Interestingly, the deletions detected in three Wolbachia genes were either new or similar to those of previously identified pseudogenes that were integrated in the host genome indicating putative horizontal gene transfer events in B. dorsalis, B. correcta and B. zonata.

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Area-Wide Management of Fruit Flies (Diptera: Tephritidae) in Hawaii

Cited by 22 publications

References 32 publications

Suppression of female melon fly, Zeugodacus cucurbitae, with cue‐lure and fipronil bait stations through horizontal insecticide transfer

Suppression of female melon fly, Zeugodacus cucurbitae, with cue‐lure and fipronil bait stations through horizontal insecticide transfer

Synergistic and additive interactions among components of food‐based baits underlie female fruit fly attraction

Detection and characterization of bacterial endosymbionts in Southeast Asian tephritid fruit fly populations

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