Isolation, identification, and synthesis of a female sex pheromone of the navel orangeworm,Amyelois transitella (Lepidoptera: Pyralidae)

Coffelt, J. A.; Vick, K. W.; Sonnet, Philip E.; Doolittle, R. E.

doi:10.1007/bf00990218

Cited by 74 publications

(39 citation statements)

References 15 publications

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“…Srinivasan (1970) reported that pheromone release, male response to female pheromone and mating follow a circadian rhythm and that there was Coffelt et al (1979) reported that female calling and pheromone release at 25 o C and 14L:10D occurred in the last 30 min of the scotophase thus coinciding with the last part of the major mating activity observed by us. On the other hand, Srinivasan (1970) found no precise diurnal pattern of pheromone production and male response in fi eld observations, but noted a peak of mating activity from 1 AM to 3 AM when temperature was 9 o C to 12 o C. In addition, Proshold (1967) reported that copulation, corresponding with male trapping, occurred from 11 PM to 6 AM in the fi eld.…”

Section: Resultsmentioning

confidence: 99%

“…Periodicity of pheromone release/calling behavior in the navel orangeworm has been previously investigated by Proshold (1967), Srinivasan (1970) and Coffelt et al (1979), but the literature was inconsistent. Srinivasan (1970) reported that pheromone release, male response to female pheromone and mating follow a circadian rhythm and that there was Coffelt et al (1979) reported that female calling and pheromone release at 25 o C and 14L:10D occurred in the last 30 min of the scotophase thus coinciding with the last part of the major mating activity observed by us.…”

Section: Resultsmentioning

confidence: 99%

“…The potential of pheromones for controlling NOW populations has prompted a cadre of chemical ecologists over the years to investigate the pheromone system of this economically important agricultural pest. The major constituent of the sex pheromone, Z11Z13-16Ald, was identifi ed earlier (Coffelt et al 1979), but other essential constituents remained elusive for almost three decades.…”

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Sexual behavior of the navel OrangeWorm, Amyelois transitella (Walker) (Lepidoptera: Pyralidae)

Parra-Pedrazzoli¹,

Leal²

2006

Neotrop. Entomol.

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Neotropical Entomology 35(6): 769-774 (2006) Comportamento Sexual de Amyelois transitella (Walker) (Lepidoptera: Pyralidae) RESUMO -Com o objetivo de se estudar o comportamento sexual de Amyelois transitella (Walker), desenvolveu-se uma metodologia de criação da mariposa em condições de laboratório, utilizando-se como substrato alimentar pistaches secos e torrados. A criação foi desenvolvida a partir de lagartas coletadas em Bakersfi eld, Califórnia. A atividade de acasalamento foi observada principalmente durante a última hora da escotofase e os primeiros 30 min. da fotofase, em laboratório mantido a 25 o C. O comportamento de chamamento das fêmeas foi caracterizado pela projeção do abdome entre as asas, com os segmentos distais mantidos perpendicularmente ao corpo, pela exposição da glândula produtora de feromônio e pela contínua antenação. Os machos aproximaram-se das fêmeas "chamando" a uma curta distância, batendo fortemente as asas e movimentando as antenas. Após o macho tocar o abdome da fêmea com a antena, esta o aceita abaixando a ponta do abdome, ou não o aceita caminhando em direção oposta a ele. O macho que foi aceito pela fêmea aproxima-se, permanecendo paralelamente ao corpo dela e, nesta posição, introduz o edeago na porção fi nal do abdome e rotaciona o corpo 180 o , permanecendo em sentido linear e oposto à fêmea por mais de 3h em média. Os machos emergem antes das fêmeas, provavelmente como estratégia para aumentar as chances de acasalamento. Cerca de 80% dos acasalamentos ocorreram nos dois primeiros dias de vida. As fêmeas acasalaram uma única vez, entretanto, 55% dos machos acasalaram somente uma vez, 40% duas vezes e 5% três vezes. PALAVRAS-CHAVE: Comportamento de cópula, comportamento de corte, protandria, técnica de criação ABSTRACT -To get a better understanding of the mating behavior of the navel orangeworm, Amyelois transitella (Walker), we developed a robust laboratory colony derived from larvae collected in Bakersfi eld, California and fed on dried, roasted pistachio. In the lab at 25 o C, most of the mating activity was observed during the last hour of the scotophase and for the fi rst 30 min of the photophase. Female calling was characterized by the abdomen being protruded between the wings with the distal segments perpendicular to the body and exposing a pheromone gland, as well as by continuous antennation. Males approached calling females from a short distance by displaying wing fanning and antennation. When a male antennated on a calling female's abdomen, she either accepted the male and lowered the abdomen, or walked away. The accepted male made a fi nal approach parallel to the female's body, but after coupling he rotated 180 o with male and female remaining in a linear, abdomen-to-abdomen position for over 3 h in average. In a possible strategy to maximize the chances of mating, the sex ratio was signifi cantly skewed towards males in the fi rst two days of emergence. Almost 80% of mating took place in the fi rst two days after adult emergence, with females mating only on...

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

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Sexual behavior of the navel OrangeWorm, Amyelois transitella (Walker) (Lepidoptera: Pyralidae)

Parra-Pedrazzoli¹,

Leal²

2006

Neotrop. Entomol.

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“…Largely, moth sex pheromones comprise of a bouquet of multiple constituents. For example, a single constituent of the sex pheromone of the navel orangeworm, Ameyolis transitella Walker (Lepidoptera: Pyralidae), (Z,Z)-11,13-hexadecadienal, was known for over two decades (Coffelt et al 1979) but failed to trap males. Recently, the full pheromone system was identified as a mixture of as many as nine constituents (Leal et al 2005).…”

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confidence: 99%

Towards the identification and synthesis of the sex pheromone of the citrus leafminer, Phyllocnistis citrella Stainton (Lepidoptera: Gracillariidae)

Parra-Pedrazzoli¹,

Cossé²,

Murata³

et al. 2006

Neotrop. Entomol.

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Bases Comportamentais para a Identificação e Síntese do Feromônio Sexual do Minador-dos Citros,Phyllocnistis citrella Stainton (Lepidoptera: Gracillariidae)RESUMO -O objetivo desta pesquisa foi caracterizar o comportamento sexual do minador-doscitros, Phyllocnistis citrella Stainton, como suporte para o isolamento, identificação e síntese do seu feromônio sexual. O acasalamento de P. citrella ocorre no intervalo entre 1h antes do início da fotofase e 1h após o término da escotofase, entre adultos de um e dois dias de idade. O comportamento de corte e cópula foi descrito para essa espécie, sendo a duração média da cópula de 49,6 min. Estudos conduzidos em olfatômetro tipo Y demonstraram que os machos foram fortemente atraídos pelas fêmeas virgens bem como pelo extrato natural de glândulas de feromônio sexual das fêmeas. PALAVRAS-CHAVE:Comportamento sexual, comportamento de corte e cópula, olfatômetro tipo Y ABSTRACT -The objective of this work was to characterize the sexual behavior of the citrus leafminer, Phyllocnistis citrella Stainton, as the foundation for the isolation, identification, and synthesis of the complete sex pheromone of this species. Mating occurred in a time window of 2h, starting 1h before the onset of photophase. The large majority of tested insects mated in the first two days after emergence, with no significant difference between mating at day 1 and day 2. A stereotypical courtship and copulation behavior were described for this species. When mating was successful, the copulation was recorded in average for 49.6 min. In Y-olfactometer tests conducted at the time of mating activity, males were strongly attracted to caged virgin females as well as to extracts from putative pheromone glands.

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“…Until 2013, male trapping, a potentially useful tool to monitor the NOW population and aid in control decisions, could only be used by those with access to a NOW colony to provide unmated NOW females for use as pheromone baits. Although the primary component of the sex pheromone was identified over three decades ago by Coffelt et al (1979), it was only the recent elucidation of other critical NOW sex pheromone components by that enabled the development of commercially produced synthetic lures (Suterra, Bend, OR; Trécé, Adair, OK). These lures produce trap capture yields equivalent to female-baited traps (J.…”

Section: T He Navel Orangeworm (Now)mentioning

confidence: 99%

Sticky traps saturate with navel orangeworm in a nonlinear fashion

Kuenen¹,

Siegel²

2016

Calif Agr

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Trapping is an essential tool used to decide the need for and/or timing of an insecticide application. The assumption is that the information is accurate, but accuracy is dependent on trap reliability and efficacy. One factor that affects reliability is trap saturation, defined as the measurable decrease in trap capture due to reduced trapping effectiveness caused by the accumulation of insects already in a trap. In this study, we used unmated female navel orangeworm (NOW, Amyelois transitella (Walker)) as sex pheromone baits in wing traps that varied by color and glue/trapping surface in order to evaluate saturation thresholds and quantify trap effectiveness. Effectiveness decreased in each type of sticky trap as the number of insects caught increased, because of the accumulation of scales and insect bodies on the glue surface. The continued accumulation of insects further reduced trap capture, and this decrease in capture could be described by a regression using a power transformation. The resulting saturation equations that we calculated will help pest control advisers and growers interpret their trap data by better estimating the relationship between the number of males trapped versus those that visited the trap.

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Isolation, identification, and synthesis of a female sex pheromone of the navel orangeworm,Amyelois transitella (Lepidoptera: Pyralidae)

Cited by 74 publications

References 15 publications

Sexual behavior of the navel OrangeWorm, Amyelois transitella (Walker) (Lepidoptera: Pyralidae)

Sexual behavior of the navel OrangeWorm, Amyelois transitella (Walker) (Lepidoptera: Pyralidae)

Towards the identification and synthesis of the sex pheromone of the citrus leafminer, Phyllocnistis citrella Stainton (Lepidoptera: Gracillariidae)

Sticky traps saturate with navel orangeworm in a nonlinear fashion

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