Evaluation of pheromone of false codling moth Thaumatotibia leucotreta in Israel by sequential SPME/GCMS analysis and field trials

Levi−Zada, Anat; Fefer, Daniela; Madar, Reut; Steiner, Sara; Kaspi, Roy

doi:10.1007/s10340-019-01138-0

Cited by 11 publications

(18 citation statements)

References 19 publications

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“…Barthel et al (2015) showed a change in the ratio of the pheromone components in immune challenged females, and Foster and Johnson (2010, 2011) demonstrated the negative effect of low concentration of trehalose in the female hemolymph on pheromone production, while feeding on sucrose restored pheromone production. The effect of female size on characteristics of her pheromone has been detected in a few moth species ( Neoleucinodes elegantalis , (Jaffe et al 2007); Lobesia botrana (Harari et al 2011), and age-dependent pheromone release has been demonstrated in various studies (Levi-Zada et al 2020; Miller and Roelofs 1980; Noldus and Potting 1990; Raina et al 1986).…”

Section: Discussionmentioning

confidence: 99%

“…Intraspecific variation in female moths’ sex pheromones has been documented (Groot et al 2014; Löfstedt et al 1986;) and more so with the advanced technology that allows to quantify the pheromone amount and ratio in an individual female (Levi-Zada et al 2020). Moreover, sex pheromones are subjected to changes in quantity and quality during the females’ lifespan (Aliniazee and Stafford 1971; Levi-Zada et al 2020; Liu and Haynes 1994; Webster and Cardé 1982) and there is evidence suggesting that female sex pheromones are affected by the female’s physical condition (Foster and Johnson 2011; Harari et al 2011). All the above mentioned suggest a cost of pheromone production in female moths, proposing female sex pheromones as honest sexual signals that may be evaluated by mate searching males.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, sex pheromones are subjected to changes in quantity and quality during the females' lifespan (Aliniazee and Stafford 1971;Levi-Zada et al 2020;Liu and Haynes 1994;Webster and Cardé 1982) and there is evidence suggesting that female sex pheromones are affected by the female's physical condition (Foster and Johnson 2011;Harari et al 2011). All the above mentioned suggest a cost of pheromone production in female moths, proposing female sex pheromones as honest sexual signals that may be evaluated by mate searching males.…”

Section: Introductionmentioning

confidence: 99%

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Males perceive honest information from female released sex pheromone in a moth

Golov

Gonzalez-Karlsson²,

Steinitz

et al. 2021

Preprint

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There is accumulating evidence that male insects advertise their quality to conspecific females through pheromones. However, most studies of female released sex pheromone assume information transfer regarding merely the species of the female and her mating status. We show that more and precise information is conveyed through the female sex pheromone, positioning it as an honest sexual trait. We demonstrate that females in bad physical conditions (small, starved or old) lay significantly fewer eggs than females in good conditions (large, fed or young). The ratio of the sex pheromone blend in gland extracts of female pink bollworm moths accurately describes the female phenotypic condition whereas the pheromone amount in the glands fails to provide an honest signal of quality. Moreover, males use the female released pheromone blend to choose their mates and approach females that signal higher reproductive potential. In addition, surrogating the female effect, using synthetic pheromone blend that represents that of higher quality females (0.6:0.4 ZZ:ZE) more males were attracted to this blend than to the blend representing the population mean (0.5:0.5 ZZ:ZE). Both, female advertisement for males and the male choosiness, suggest that pheromones have evolved as sexual traits under directional, sexual selection.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Males perceive honest information from female released sex pheromone in a moth

Golov

Gonzalez-Karlsson²,

Steinitz

et al. 2021

Preprint

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show abstract

“…The two parameters that have the greatest influence on model accuracy are ‘feature classes’ and ‘regularization multiplier’ (RM) [ 58 ]. Feature classes include Linear (L), Quadratic (Q), Product (P), Threshold (T) and Hinge (H) [ 41 ]. Regularization parameters work to smooth the model and prevent it from ‘overfitting’ [ 44 , 58 ].…”

Section: Methodsmentioning

confidence: 99%

“…Climatic changes cause the change in greenhouse gases which may affect the distribution of the pest [ 40 ]. Levi-Zada et al [ 41 ] mentioned climate change as the possible reason for recent outbreaks of T. leucotreta in pomegranate plantations in Israel. The global mean surface temperature is becoming warmer along with the global long-term warming trend identified by NASA’s Goddard Institute for Space Studies (GISS) [ 42 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Likelihood of Establishing False Codling Moth (Thaumatotibia leucotreta) in Australia via the International Cut Flower Market

Emery²,

Coupland³

et al. 2022

Insects

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Kenya and some other African countries are threatened by a serious pest Thaumatotibia leucotreta (Meyrick) (Lepidoptera: Tortricidae), the false codling moth. The detection of T. leucotreta is quite difficult due to the cryptic nature of the larvae during transportation and is therefore a concern for Australia. This insect is a known pest of agriculturally important crops. Here, Maxent was used to assess the biosecurity threat of T. leucotreta to Australia. Habitat suitability and risk assessment of T. leucotreta in Australia were identified based on threatened areas under suitable climatic conditions and the presence of hosts in a given habitat. Modeling indicated that Australia is vulnerable to invasion and establishment by T. leucotreta in some states and territories, particularly areas of western and southern Australia. Within these locations, the risk is associated with specific cropping areas. As such, invasion and establishment by T. leucotreta may have serious implications for Australia’s agricultural and horticultural industries e.g., the fruit and vegetable industries. This study will be used to inform the government and industry of the threat posed by T. leucotreta imported via the cut flower industry. Targeted preventative measures and trade policy could be introduced to protect Australia from invasion by this pest.

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Circadian rhythms of insect pheromone titer, calling, emission, and response: a review

Levi−Zada

Byers²

2021

Sci Nat

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Evaluation of pheromone of false codling moth Thaumatotibia leucotreta in Israel by sequential SPME/GCMS analysis and field trials

Cited by 11 publications

References 19 publications

Males perceive honest information from female released sex pheromone in a moth

Males perceive honest information from female released sex pheromone in a moth

Evaluation of the Likelihood of Establishing False Codling Moth (Thaumatotibia leucotreta) in Australia via the International Cut Flower Market

Circadian rhythms of insect pheromone titer, calling, emission, and response: a review

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