Point Source Distribution Affects Pheromone Spike Frequency and Communication Disruption of Epiphyas postvittana (Lepidoptera: Tortricidae)

Suckling, D. M.; Angerilli, N. P. D.

doi:10.1093/ee/25.1.101

Cited by 33 publications

(23 citation statements)

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“…Given that Isomate-C Plus dispensers release pheromone at Ϸ20 g/h (Knight 1995), and parafÞn-wax drops released Ϸ2 g/h during the Þrst 2 wk in the Þeld, the amount of pheromone released per hectare per hour for 1,000 Isomate dispensers and 27,300 wax drops was Ϸ20 and 55 mg, respectively. Alford and Silk (1983) and Suckling and Angerilli (1996) also varied release-site density while maintaining total number of pheromone point sources per hectare constant. The former study was conducted with the spruce budworm, Choristoneura fumiferana (Clemens), and Hercon ßakes (Hercon, Emigsville, PA) as the dispenser of synthetic pheromone.…”

Section: Discussionmentioning

confidence: 99%

“…However, even with intermediate clumping, treatments with 20 and 33 ßakes per release site were applied at high densities of 2,000 and 660 total release sites per ha. Suckling and Angerilli (1996) studied the light brown apple moth and used polyethylene, reservoir-type dispensers similar to those used in our study. Our results were consistent with the above studies in that clumping of dispensers decreased disruption.…”

Section: Discussionmentioning

confidence: 99%

“…Two dispensers were spaced 2.5 cm apart in the 500 release site per ha treatment. Multiple dispensers in the 10, 25, and 100 release site/ha treatments were attached to horizontally mounted, (one intersection per cm 2 ) galvanized-metal hardware cloth (TWP Wire Mesh, Berkeley, CA), each dispenser spaced 2.5 cm apart as per Suckling and Angerilli (1996). The 100 release sites per ha treatment consisted of 10 dispensers per cluster; the 25 release sites per ha treatment consisted of 40 dispensers per cluster; and the 10 release sites per ha treatment consisted of 100 dispensers per cluster.…”

Section: Methodsmentioning

confidence: 99%

“…A savings in labor is postulated for a given number of Isomate dispensers assembled into clusters rather than distributed individually (Knight 2004). However, Suckling and Angerilli (1996) falsiÞed this idea for light brown apple moth, Epiphyas postvittana (Walker). Their study revealed that if the total number of dispensers was held constant, plots with higher densities of release sites best-disrupted moth catches in pheromone traps.…”

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confidence: 99%

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Higher Densities of Distributed Pheromone Sources Provide Disruption of Codling Moth (Lepidoptera: Tortricidae) Superior to That of Lower Densities of Clumped Sources

Epstein

Stelinski

Reed

et al. 2006

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Field experiments quantified the effect of synthetic pheromone release-site density and distribution on 1) orientational disruption of male codling moths, Cydia pomonella (L.) (Lepidoptera: Tortricidae), to pheromone-baited traps; and 2) fruit injury. A clustering test varied pheromone release-site density from 0 to 1,000 Isomate-C Plus dispensers per ha while maintaining the total number of dispensers at 1,000. Percentage of orientational disruption of pheromone-baited traps increased significantly as a function of increasing density of release sites. Fruit injury decreased as the density of release sites increased and was lowest in plots treated with Isomate-C Plus dispensers distributed as 1,000 point sources per ha. We also manipulated point source density of 0.1-ml paraffin-wax drops containing 5% codlemone [(E,E)-8,10-dodecadien-1-ol], and thus the total amount of pheromone deployed per hectare. The percentage of disruption of traps baited with either 1.0- or 0.1-mg codlemone lures increased with increasing density of wax drops deployed. Both trapping and field observations confirmed that wax drops were attractive to male codling moths, suggesting that disruption was mediated by competitive attraction. Development of dispensers that can be mechanically applied at high densities has potential to improve the efficacy and economics of codling moth disruption at high population densities.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

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Higher Densities of Distributed Pheromone Sources Provide Disruption of Codling Moth (Lepidoptera: Tortricidae) Superior to That of Lower Densities of Clumped Sources

Epstein

Stelinski

Reed

et al. 2006

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“…The recent demonstration of close-range disruption of Argentine ant trails by using pheromone contained in "twist-tie" polyethylene tubing dispensers showed reduced ant traffic in small plots (Tatsuki et al 2005;Tanaka et al 2009). This type of polyethylene-tubing formulation has been used for mating disruption of moths, usually at a density up to one thousand discrete point sources per hectare in orchards and other crops (Suckling and Angerilli 1996;Suckling 2000). However, a discrete point-source approach may not give an effective concentration of trail pheromone to prevent trail following over large areas, except under very still conditions, because pheromone concentration from these dispensers is a function of application height (Suckling et al 1999).…”

Section: Introductionmentioning

confidence: 99%

Trail Pheromone Disruption of Argentine Ant Trail Formation and Foraging

et al. 2010

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Trail pheromone disruption of invasive ants is a novel tactic that builds on the development of pheromonebased pest management in other insects. Argentine ant trail pheromone, (Z)-9-hexadecenal, was formulated as a microencapsulated sprayable particle and applied against Argentine ant populations in 400 m 2 field plots in Hawai'i Volcanoes National Park. A widely dispersed point source strategy for trail pheromone disruption was used. Traffic rates of ants in bioassays of treated filter paper, protected from rainfall and sunlight, indicated the presence of behaviorally significant quantities of pheromone being released from the formulation for up to 59 days. The proportion of plots, under trade wind conditions (2-3 m s −1 ), with visible trails was reduced for up to 14 days following treatment, and the number of foraging ants at randomly placed tuna-bait cards was similarly reduced. The success of these trail pheromone disruption trials in a natural ecosystem highlights the potential of this method for control of invasive ant species in this and other environments.

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Field electroantennogram and trap assessments of aerosol pheromone dispensers for disrupting mating in Epiphyas postvittana

Suckling

Daly

Chen

et al. 2006

Pest Management Science

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An electronically controlled aerosol system for mating disruption was evaluated against Epiphyas postvittana Walker in apple orchards in New Zealand. The area in which male moths were affected by the aerosol system was examined using catches in traps radiating from a central single-point source of either one aerosol can dispenser or 100 polyethylene tubing dispensers, compared with catches in orchard plots without pheromone dispensers. Both pheromone dispensing systems decreased moth catch to similar levels at 5-10 m from the central release point, but there was 5.5-fold more pheromone released from aerosol cans than from polyethylene dispensers over a 24 h period. Trap catches were reduced by about 90% in plots treated with either five aerosol cans per hectare or uniform deployment of polyethylene dispensers. Recordings of electroantennograms in open grassed plots and orchards indicated that the treated cotton pad of an aerosol dispenser and a point source of 100 polyethylene tubing dispensers produced similar electroantennogram recordings. Electroantennogram recordings provided evidence that pheromone plume detection from a single-point source was maintained over a range of 5-40 m downwind in the orchard. On present evidence, aerosol pheromone dispensers could not be recommended for further testing towards control of E. postvittana under New Zealand conditions owing to their higher cost of purchase and operation.

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Point Source Distribution Affects Pheromone Spike Frequency and Communication Disruption of Epiphyas postvittana (Lepidoptera: Tortricidae)

Cited by 33 publications

References 0 publications

Higher Densities of Distributed Pheromone Sources Provide Disruption of Codling Moth (Lepidoptera: Tortricidae) Superior to That of Lower Densities of Clumped Sources

Higher Densities of Distributed Pheromone Sources Provide Disruption of Codling Moth (Lepidoptera: Tortricidae) Superior to That of Lower Densities of Clumped Sources

Trail Pheromone Disruption of Argentine Ant Trail Formation and Foraging

Field electroantennogram and trap assessments of aerosol pheromone dispensers for disrupting mating in Epiphyas postvittana

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