Inhibition of sexual response in males of the moth Argyrotaenia velutinana by brief exposures to synthetic pheromone or its geometrical isomer

Bartell, R. J.; Roelofs, Wendell L.

doi:10.1016/0022-1910(73)90074-7

Cited by 33 publications

(28 citation statements)

References 5 publications

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“…These results are similar to those obtained with A. velutinana, where LLA could not be measured by EAG 1 min after 1-h preexposures with 100 mg of neat (Z)-11-tetradecenyl acetate (Stelinski et al 2003b). However, normal behavioral responsiveness to pheromone in both G. molesta Baker 1992, Rumbo andVickers 1997) and A. velutinana (Bartell and Roelofs 1973) is reduced for prolonged periods after pheromone exposures similar to the ones performed in our EAG studies, suggesting that habituation of the central nervous system occurs. Similar results have recently been obtained with C. pomonella in which behavioral responsiveness to pheromone was reduced 4 times longer than electrophysiological responsiveness (Judd et al 2005).…”

Section: Discussionmentioning

confidence: 69%

“…Delineating the primary versus secondary mechanism(s) will aid in the development of pheromone technologies for practical use. The likelihood of effectiveness for a pheromone product is enhanced by knowing how it achieves mating disruption in the Þeld.Continuous and pulsed exposure to pheromone decreases behavior and electrophysiological responsiveness in many moth species (Bartell and Roelofs 1973; Bartell and Lawrence 1976a, b, c;Linn and Roelofs 1981;Kuenen and Baker 1981;Sanders 1985;Rumbo and Vickers 1997;Schmitz et al 1997;Daly and Figueredo 2000). Typically, this effect, termed adaptation, is dosage-dependent and reversible.…”

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confidence: 99%

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Occurrence and Duration of Long-Lasting Peripheral Adaptation Among Males of Three Species of Economically Important Tortricid Moths

Stelinski

Gut

Miller

2005

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Electroantennograms (EAGs) of Cydia pomonella (L.), Pandemis pyrusana Kearfott, and Grapholita molesta (Busck) documented the presence and duration of long-lasting peripheral adaptation after pheromone preexposure. Moths of each species were preexposed for 1 h to varying dosages (100 ngÐ100 mg) of the major components of their respective pheromone blends in 1-liter Teßon containers with constant throughput of air. EAGs were performed on all insects 1 min after preexposure and at several subsequent intervals up to 120 min after exposure. Long-lasting peripheral adaptation was recorded by EAG after pheromone preexposure over a range of pheromone dosages in both C. pomonella (100 gÐ10 mg) and P. pyrusana (100 ngÐ100 mg). This reduction in EAG responsiveness lasted Ϸ60 and 10 min, respectively, for these two species. For G. molesta, a reduction in EAG responsiveness occurred only after 1 h of exposure to the highest dosage of pheromone tested (100 mg). Recovery from adaptation was also rapid in this species: EAGs were signiÞcantly reduced to all applied stimulus dosages only at 1-min postexposure. There was substantial variation in the prevalence and duration of decreased EAG responsiveness across the species investigated. However, where long-lasting adaptation was described, the phenomenon lasted Յ60 min. In addition, longlasting adaptation was induced after prolonged exposures at estimated airborne concentrations of pheromone in the range of nanograms per milliliter, which are much higher than the pheromone concentrations in Þeld plots treated with synthetic pheromone dispensers. Long-lasting peripheral adaptation after pheromone preexposure does not seem to be an important contributor to mating disruption.KEY WORDS long-lasting adaptation, electroantennogram, Grapholita molesta, Cydia pomonella, Pandemis pyrusana PHEROMONE-BASED MATING DISRUPTION IS an important biorational alternative to insecticides for controlling lepidopteran pests and has been under development for more than three decades (Cardé and Minks 1995, Gut et al. 2004). Mating disruption is achieved by the release of synthetic pheromones into a crop canopy to disrupt pheromone-mediated mate-Þnding behaviors. Various mechanisms have been proposed to explain how mating disruption works (Rothchild 1981, Bartell 1982, Cardé 1990. In no speciÞc order, synthetic pheromones are thought to camoußage natural, female-released plumes; act as false trails for searching males; cause an imbalance of sensory input; or desensitize males to pheromone through peripheral sensory adaptation or central nervous system habituation. These mechanisms are thought not to be mutually exclusive (Cardé et al. 1998).A plethora of studies have been conducted examining the possible mechanisms of mating disruption (Sanders 1982(Sanders , 1985(Sanders , 1996(Sanders , 1998Valeur and Lö fstedt 1996;Mafra-Neto and Baker 1996;Cardé et al. 1998;Evenden et al. 1999a Evenden et al. , b, c, 2000Stelinski et al. 2004Stelinski et al. , 2005. However, progress has been modest in di...

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Section: Discussionmentioning

confidence: 69%

mentioning

confidence: 99%

Occurrence and Duration of Long-Lasting Peripheral Adaptation Among Males of Three Species of Economically Important Tortricid Moths

Stelinski

Gut

Miller

2005

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“…If the semiochemical release rate is increased, it is apparent that the active space increases in area as well as the varied CP values, all of which would be impractical to measure. The semiochemical release rate can be increased to a point that adaptation or confusion occurs with little catch (Bartell and Roelofs 1973;Baker and Roelofs 1981;Kuenen and Baker 1981;Baker et al 1989;Rumbo and Vickers 1997;Judd et al 2005). In this case, the active space should move a distance downwind from Fig.…”

Section: Introductionmentioning

confidence: 99%

Active Space of Pheromone Plume and its Relationship to Effective Attraction Radius in Applied Models

Byers

2008

J Chem Ecol

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The release rate of a semiochemical lure that attracts flying insects has a specific effective attraction radius (EAR) that corresponds to the lure's orientation response strength. EAR is defined as the radius of a passive sphere that intercepts the same number of insects as a semiochemical-baited trap. It is estimated by calculating the ratio of trap catches in the field in baited and unbaited traps and the interception area of the unbaited trap. EAR serves as a standardized method for comparing the attractive strengths of lures that is independent of population density. In two-dimensional encounter rate models that are used to describe insect mass trapping and mating disruption, a circular EAR (EAR c ) describes a key parameter that affects catch or influence by pheromone in the models. However, the spherical EAR, as measured in the field, should be transformed to an EAR c for appropriate predictions in such models. The EAR c is calculated as (π/2EAR2 )/F L , where F L is the effective thickness of the flight layer where the insect searches. F L was estimated from catches of insects (42 species in the orders Coleoptera, Lepidoptera, Diptera, Hemiptera, and Thysanoptera) on traps at various heights as reported in the literature. The EAR c was proposed further as a simple but equivalent alternative to simulations of highly complex active-space plumes with variable response surfaces that have proven exceedingly difficult to quantify in nature. This hypothesis was explored in simulations where flying insects, represented as coordinate points, moved about in a correlated random walk in an area that contained a pheromone plume, represented as a sector of active space composed of a capture probability surface of variable complexity. In this plume model, catch was monitored at a constant density of flying insects and then compared to simulations in which a circular EAR c was enlarged until an equivalent rate was caught. This demonstrated that there is a circular EAR c , where all insects that enter are caught, which corresponds in catch effect to any plume. Thus, the EAR c , based on the field-observed EAR, can be used in encounter rate models to develop effective control programs based on mass trapping and/or mating disruption.

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“…Many studies have been conducted examining male moth antennal and behavioral responses to pheromone for both the redbanded leafroller (Bartell & Roelofs, 1973, 1976Cardé & Roelofs, 1977;Novak & Roelofs, 1985;El-Sayed et al, 2003;Stelinski et al, 2003aStelinski et al, , b, 2004a and obliquebanded leafroller moths (Evenden et al, 2000;Stelinski et al, 2003aStelinski et al, , b, 2004a. Some of these investigations have suggested that high-dosage exposure of male moths to their pheromone blend components decreases subsequent responses of male moths due to adaptation, habituation, or a combination of both.…”

Section: Introductionmentioning

confidence: 99%

“…Some of these investigations have suggested that high-dosage exposure of male moths to their pheromone blend components decreases subsequent responses of male moths due to adaptation, habituation, or a combination of both. This decreased responsiveness following previous exposure has been implicated as a potential contributing factor to mating disruption (Bartell & Roelofs, 1973;Evenden et al, 2000;Stelinski et al, 2004a). Despite great attention to the effects of pheromone exposure on male moth behavior, similar effects on the responses of conspecific female moths have not been investigated in depth.…”

Section: Introductionmentioning

confidence: 99%

Comparative behavioral and EAG responses of female obliquebanded and redbanded leafroller moths (Lepidoptera: Tortricidae) to their sex pheromone components

Gökçe¹,

Stelinski²,

Gut³

et al. 2007

Eur. J. Entomol.

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Abstract. Studies were conducted investigating the responses of female obliquebanded leafrollers, Choristoneura rosaceana (Harris) and redbanded leafrollers, Argyrotaenia velutinana (Walker) (Lepidoptera: Tortricidae), to components of their sex pheromone. Electroantennogram (EAG) recordings revealed significant responses from antennae of female moths of both species to the major pheromone component, (Z)-11-tetradecenyl acetate, at dosages ranging from 2 µg -2 mg. However, tested individually, the minor pheromone components of the obliquebanded leafroller, (E)-11-tetradecenyl acetate and (Z)-11-tetradecenol, elicited little or no antennal response from conspecific females. This result was consistent for redbanded leafroller females, which showed only weak responses to the minor component (E)-11-tetradecenyl acetate at a 2 mg dosage. For both species, species-specific blend ratios of the Z and E isomers of tetradecenyl acetate did not elicit a greater antennal response than the Z isomer alone. Virgin females of each species (2-4 d old) were placed into 1-liter plastic assay chambers with constant throughput of carbon-filtered air passed through 1-liter flasks containing rubber septa loaded with (Z)-and (E)-11-tetradecenyl acetates and (Z)-11-tetradecenol for trials with female obliquebanded leafrollers or with (Z)-and (E)-11-tetradecenyl acetates and dodecyl acetate for trials with female redbanded leafrollers. Exposure to pheromone-permeated air delayed the onset of calling by 1 h and terminated the calling period 1 h earlier for both species compared with solvent-control exposed females. Furthermore, the total proportion of calling females was reduced by half in chambers receiving constant throughput of pheromone-permeated air compared with solvent controls. Exposure to pheromonepermeated air also significantly reduced egg-laying in both species compared with clean-air controls. Furthermore, application of the major pheromone component, (Z)-11-tetradecenyl acetate, at dosages ranging from 2 µg-2 mg to wax-paper ovipositional substrates, deterred oviposition by females of both species. Our data suggest that application of synthetic sex-attractant pheromones for mating disruption of leafroller species may have deleterious effects on female moth behavior, which may contribute to pest control. Field investigations will need to be conducted to test this hypothesis. 187* Corresponding author; current address:

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Inhibition of sexual response in males of the moth Argyrotaenia velutinana by brief exposures to synthetic pheromone or its geometrical isomer

Cited by 33 publications

References 5 publications

Occurrence and Duration of Long-Lasting Peripheral Adaptation Among Males of Three Species of Economically Important Tortricid Moths

Occurrence and Duration of Long-Lasting Peripheral Adaptation Among Males of Three Species of Economically Important Tortricid Moths

Active Space of Pheromone Plume and its Relationship to Effective Attraction Radius in Applied Models

Comparative behavioral and EAG responses of female obliquebanded and redbanded leafroller moths (Lepidoptera: Tortricidae) to their sex pheromone components

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