Protein Hydrolysate Volatiles as Insect Attractants

Matsumoto, Kent E.; Buttery, Ron G.; Flath, Robert A.; Mon, T. R.; Teranishi, Roy

doi:10.1021/bk-1985-0276.ch025

Cited by 11 publications

(5 citation statements)

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“…Although ammonia seems to be a key attraction component, our results agree with previous studies in which ammonia alone did not fully account for the attraction of flies [9,15,16,21,28,29]. This was corroborated in our experiments, in which the capture of flies was significantly improved when torula yeast was added to 150 mM ammonia solution ( Table 2).…”

Section: Discussionsupporting

confidence: 93%

“…These results, together with a significant increase in fly captures when torula yeast was alkalized to pH 9.5 ( Figure 3 A,B), although not correlated with increased ammonia, suggest to us that volatile compounds released from alkalized proteins might interact with low concentrations of ammonia, resulting in mixtures that were highly attractive to fruit flies. Indeed, volatile compounds released from alkalized proteins, such as pyrazines, have been implicated in tephritid attraction, whereas volatiles emitted from acidified proteins elicit no such attraction [ 16 , 28 ].…”

Section: Discussionmentioning

confidence: 99%

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Does Ammonia Released from Protein-Based Attractants Modulate the Capture of Anastrepha obliqua (Diptera: Tephritidae)?

Lasa

Williams

2021

Insects

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Tephritid fly responses to food-based attractants involve a complex range of food-derived semiochemicals, including ammonia. We performed laboratory and field experiments to compare the attraction of Anastrepha obliqua (Macquart) to ammonia with the attraction to commercial food attractants and torula yeast at a range of pHs. A positive correlation was established between the concentration of ammonia in solution (1.5–150 mM ammonium solution) and gaseous ammonia released by bottle-type traps. This resulted in an asymptotic response in captures of A. obliqua flies in traps that released 99–295 µg ammonia/h. Pairwise comparisons in laboratory cages revealed that traps baited with 150 mM ammonia solution captured similar numbers of A. obliqua as traps baited with Biolure 2C, CeraTrap, and hydrolyzed protein products (Captor, Winner, and Flyral) plus borax, despite the low quantities of ammonia (11–56 µg/h) released from these attractants. Subsequent choice experiment captures in traps containing ammonia solution were similar or higher than those of commercial attractants, with the exception of Winner + borax, but were not correlated with the ammonia released from attractants. Captures of flies in traps containing ammonia solution were increased by the addition of 1% torula yeast or torula yeast alkalized with sodium hydroxide or borax despite differences in the quantities of ammonia released. Fly captures generally increased with increasing alkalization of torula yeast (pH 7.5–9.5). In the field, torula yeast in ammonia solution captured similar numbers of A. obliqua flies as Captor + borax when traps were evaluated after 24 h but not after a 7-day trapping period. Traps baited with ammonia solution or Winner + borax were significantly less attractive than Captor + borax in both field experiments. We conclude that A. obliqua flies are attracted to ammonia solutions of increasing concentration, up to 150 mM, in the absence of other stimuli, whereas attraction to commercial attractants or alkalized torula yeast is not correlated with the release of ammonia.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Does Ammonia Released from Protein-Based Attractants Modulate the Capture of Anastrepha obliqua (Diptera: Tephritidae)?

Lasa

Williams

2021

Insects

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“…Ammonia is considered a key attractant for tephritids, but several studies have revealed that attraction to protein‐based lures of alkaline pH is not attributable solely to the release of ammonia (Flath et al, 1989; Matsumoto et al, 1985; Mazor et al, 1987). Indeed, other volatile compounds released following the alkalization of amino acids, peptides or proteins appear to interact with low concentrations of ammonia, resulting in mixtures that are highly attractive to adult tephritids (Lasa & Williams, 2021; Piñero et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Alkaline hydrolyzed torula yeast as an attractant for Anastrepha obliqua (Diptera: Tephritidae)

Lasa

Williams

2022

J Applied Entomology

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Anastrepha fruit flies are major agricultural pests in the Americas (White & Elson-Harris, 1992). The West Indian fruit fly, Anastrepha obliqua (Macquart) (Diptera: Tephritidae), is a pest of mango, Mangifera indica L., which threatens the commercialization and export of those fruits (Hernández-Ortiz & Aluja, 1993). It is also considered a potential threat to crops in tropical and subtropical regions elsewhere, including southern Asia and northeastern Australia (Fu et al., 2014).Food attractants have been used in surveillance programmes targeted at Anastrepha spp. for over eight decades (Epsky et al., 2014). Food lures, however, are considered to be weak attractants and elicit highly variable fly responses, depending on the type and age of the attractant and also vary across tephritid species, crops and ambient

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“…Ammonia has been considered to be a key compound in the attraction of tephritids (Bateman & Morton, 1981; Mazor et al., 1987, 2002). However, there is increasing evidence that ammonia alone does not fully account for the attraction of flies, and other compounds are influential in the attraction response (Matsumoto et al., 1985; Flath et al., 1989; Piñero et al., 2020; Lasa & Williams, 2021a). A ca.…”

Section: Discussionmentioning

confidence: 99%

Efficacy of alkaline hydrolyzed torula yeast for monitoring Anastrepha spp.

Lasa,

Williams

2024

Entomologia Exp Applicata

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Anastrepha fruit flies (Diptera: Tephritidae) are important pests of several crops in the Americas. Alkaline hydrolysis of proteins represents a potential source of novel attractants. Previous studies revealed a higher response by Anastrepha obliqua (Macquart) to alkaline hydrolyzed torula yeast compared with other attractants. Under field conditions, captures of Anastrepha fraterculus (Wiedemann), Anastrepha ludens (Loew), and Anastrepha serpentina (Wiedemann) were significantly higher in traps baited with alkaline hydrolyzed torula yeast than in traps baited with acid hydrolyzed protein (Captor) + borax. Fly attraction to alkaline hydrolyzed torula yeast varied with species but was higher in the 1st week and decreased after 2 or 3 weeks of use in the field. The release of ammonia gas from alkaline hydrolyzed torula yeast and CeraTrap was reduced after 3 weeks, but CeraTrap remained effective in the capture of flies whereas alkaline hydrolyzed torula yeast did not. No improvement in fly captures was observed for aged alkaline hydrolyzed torula yeast when 1% ammonium acetate was added to traps. The addition of propylene glycol or benzalkonium chloride did not improve trap captures over time. Although CeraTrap has advantages in attractiveness and durability, the attraction, simplicity, and low cost make alkaline hydrolyzed torula yeast a promising attractant when compared with the standard Captor + borax in short‐term monitoring programs targeted at Anastrepha pests.

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Protein Hydrolysate Volatiles as Insect Attractants

Cited by 11 publications

References 0 publications

Does Ammonia Released from Protein-Based Attractants Modulate the Capture of Anastrepha obliqua (Diptera: Tephritidae)?

Does Ammonia Released from Protein-Based Attractants Modulate the Capture of Anastrepha obliqua (Diptera: Tephritidae)?

Alkaline hydrolyzed torula yeast as an attractant for Anastrepha obliqua (Diptera: Tephritidae)

Efficacy of alkaline hydrolyzed torula yeast for monitoring Anastrepha spp.

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