Sex pheromone components of the oblique-banded leafroller,Choristoneura rosaceana in the Okanagan Valley of British Columbia

Vakenti, Jerry M.; Gaunce, A. P.; Slessor, K. N.; King, Gregory G.; Allan, Sandra A.; Madsen, Harold F.; Borden, John H.

doi:10.1007/bf01013910

Cited by 43 publications

(56 citation statements)

References 18 publications

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“…Despite the importance and specificity of the 3 minor pheromone components in the attractiveness of the sex pheromone blend for male C. rosaceana in western North America (Vakenti et al 1988, Thomson et al 1991, we failed in a series of both small-plot and field-cage studies to show any significant role of the minor components Zll-14:Ald and Zll-14:0H in disruption. Similarly, Agnello et al (1996) found no difference in the level of disruption by using dispensers loaded with either a 94:6 Z:Ell-14:0Ac blend or a 90:5:5 Z:Ell-14:0Ac: Zll-14:0H blend in New York.…”

Section: Discussionmentioning

confidence: 93%

“…Hill and Roelofs (1979) and Vakenti et al (1988) found that Ell-14:0Ac comprised ~ 1-2% of female abdominal tip extracts. Maximal moth catches were with acetate blends, including 3-5% of this isomer with populations in N ew York (Hill and Roelofs 1979).…”

Section: Discussionmentioning

confidence: 99%

“…Instead, they reported that the sex pheromone of C. rosaceana consisted of 3 components: Zl1-14:0Ac, El1-14:0Ac, and (Z)-11-tetradecen-l-01 (Zl1-14: OH). Vakenti et al (1988) detected Zl1-14:Ald in female tip extracts in a population of C. rosaceana from western Canada and showed its importance in enhancing the attractiveness of the 3-component blend. Thomson et al (1991) found that inclusion ofZl1-14: AId in a 4-component blend enhanced moth catch compared with the 3-component blend for populations in British Columbia, but not for populations in Quebec.…”

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confidence: 99%

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Developing Mating Disruption of Obliquebanded Leafroller (Lepidoptera: Tortricidae) in Washington State

Knight¹,

Thomson²,

Cockfield³

1998

Environmental Entomology

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Section: Discussionmentioning

confidence: 93%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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Developing Mating Disruption of Obliquebanded Leafroller (Lepidoptera: Tortricidae) in Washington State

Knight¹,

Thomson²,

Cockfield³

1998

Environmental Entomology

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“…In the case of C. rosaceana, the attracticide was loaded with a mixture containing 95.5% of cis-11-tetradeca-1-acetate (Z11-14Ac following the nomenclature used by Stevens, 1998), 2% of trans-11-tetradeca-1-acetate (E11-14Ac), 1.5% of cis-11-tetradeca-1-alcohol (Z11-14OH), and 1% of cis-11-tetradeca-1-aldehyde (Z11-14Al). This was based on the blend reported by Vakenti et al (1988). In the case of P. pyrusana, the proportions of pheromone components in the attracticide were 94% of cis-11-tetradeca-1-acetate (Z11-14Ac) and 6% of cis-9-tetradeca-1-acetate (Z9-14Ac).…”

Section: Methodsmentioning

confidence: 99%

Choristoneura rosaceana (Harris) and Pandemis pyrusana Kearfott (Lepidoptera: Tortricidae) Male Control in Washington State (USA) Apple Orchards Treated with Different Source Densities of Several Attracticide Formulations

Ćurković

Brunner

2007

Agric. Téc.

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Control de machos de A B S T R A C TThis is the first report on attracticides loaded with 1.6 or 16% pheromone, with or without 6% permethrin, tested for Choristoneura rosaceana (Harris) and Pandemis pyrusana Kearfott male control. Different densities of attracticide sources (750-3,600 droplets ha -1 ) homogeneously applied on the canopy were compared in apple (Malus pumila Mill.) orchards. Before attracticide application, no differences in male captures using pheromone baited trap were observed. Afterwards, a significant reduction of captures occurred along with the increasing pheromone concentration, when larger density sources were used. The addition of permethrin into the attracticide formulation, however, did not significantly improve the reduction of males. Overall, these results suggest that mating disruption or other mechanism, instead of the killing effect attributed to attracticides, controlled males. It is suggested to test the attracticide formulation matrix reported as an alternative to the current ones used for mating disruption. R E S U M E NEste es el primer informe del control de machos de Choristoneura rosaceana (Harris) y Pandemis pyrusana Kearfott con atracticidas que contengan 1,6 ó 16% de feromona, con o sin permetrina al 6%. Se compararon diferentes densidades de atracticidas (750-3.600 gotas ha -1 ), aplicadas homogéneamente en la copa de los manzanos (Malus pumila Mill.). Antes de los tratamientos no se observaron diferencias estadísticas en las capturas en trampas cebadas con feromona. Después de aplicar los tratamientos, se observó una reducción significativa en las capturas, al usar mayores concentraciones de feromona y mayores densidades de gotas por hectárea. La incorporación de permetrina en la formulación atracticida no mejoró su actividad en el control de machos. En general, los resultados sugieren que un efecto similar a la confusión de cópula, en lugar de un efecto letal atribuible al atracticida, o bien otro mecanismo, controló a los machos de estas especies. La matriz grasosa usada en la formulación atracticida se sugiere como una alternativa para ser probada respecto de las formulaciones actualmente usadas para confusión de cópula.Palabras clave: atracticidas, Choristoneura rosaceana, Pandemis pyrusana, permetrina, concentración de feromona, densidad de fuentes, confusión de cópula.

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“…Greater success has been recorded with a Western population of obliquebanded leafroller in British Columbia, Canada (Evenden et al, 1999a,b). The females of this Western population contain different amounts and ratios of the four-component pheromone and the males are characterized by different behavioral and antennal responsiveness to blends of these four components as compared with Eastern U.S. populations of this species (Vakenti et al, 1988, Thomson et al, 1991El-Sayed et al, 2003). Despite numerous studies on mating disruption of these two species, the mechanisms behind its effectiveness are still poorly understood.…”

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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Sex pheromone components of the oblique-banded leafroller,Choristoneura rosaceana in the Okanagan Valley of British Columbia

Cited by 43 publications

References 18 publications

Developing Mating Disruption of Obliquebanded Leafroller (Lepidoptera: Tortricidae) in Washington State

Developing Mating Disruption of Obliquebanded Leafroller (Lepidoptera: Tortricidae) in Washington State

Choristoneura rosaceana (Harris) and Pandemis pyrusana Kearfott (Lepidoptera: Tortricidae) Male Control in Washington State (USA) Apple Orchards Treated with Different Source Densities of Several Attracticide Formulations

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

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