Measurement by electroantennogram of airborne pheromone in cotton treated for mating disruption of <i>Pectinophora gossypiella</i> following removal of pheromone dispensers

Koch, Uwe; Lüder, W.; Andrick, Ulf; Staten, R. T.; Cardé, Ring T.

doi:10.1111/j.1570-7458.2008.00798.x

Cited by 5 publications

(2 citation statements)

References 16 publications

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“…A portable electroantennogram apparatus was designed for live measurements of ambient pheromone concentrations with an insect antenna, and for rapid optimization of pheromone dispenser placement (Sauer et al 1992;Koch et al 2009b). Field tents were used to determine the mating status of female moths and critical population densities, above which mating disruption is no longer effective (Feldhege et al 1995).…”

Section: Mating Disruption In Vineyardsmentioning

confidence: 99%

Sex Pheromones and Their Impact on Pest Management

Witzgall¹,

Kirsch²,

2010

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The idea of using species-specific behavior-modifying chemicals for the management of noxious insects in agriculture, horticulture, forestry, stored products, and for insect vectors of diseases has been a driving ambition through five decades of pheromone research. Hundreds of pheromones and other semiochemicals have been discovered that are used to monitor the presence and abundance of insects and to protect plants and animals against insects. The estimated annual production of lures for monitoring and mass trapping is on the order of tens of millions, covering at least 10 million hectares. Insect populations are controlled by air permeation and attract-and-kill techniques on at least 1 million hectares. Here, we review the most important and widespread practical applications. Pheromones are increasingly efficient at low population densities, they do not adversely affect natural enemies, and they can, therefore, bring about a long-term reduction in insect populations that cannot be accomplished with conventional insecticides. A changing climate with higher growing season temperatures and altered rainfall patterns makes control of native and invasive insects an increasingly urgent challenge. Intensified insecticide use will not provide a solution, but pheromones and other semiochemicals instead can be implemented for sustainable area-wide management and will thus improve food security for a growing population. Given the scale of the challenges we face to mitigate the impacts of climate change, the time is right to intensify goal-oriented interdisciplinary research on semiochemicals, involving chemists, entomologists, and plant protection experts, in order to provide the urgently needed, and cost-effective technical solutions for sustainable insect management worldwide.

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Section: Mating Disruption In Vineyardsmentioning

confidence: 99%

Sex Pheromones and Their Impact on Pest Management

Witzgall¹,

Kirsch²,

2010

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“…Pheromones are generally produced in very low amounts, and natural outdoor concentrations are difficult to estimate. Pheromone concentration in a cotton field treated for mating disruption was measured at 0.0013 ppb (Koch et al 2002(Koch et al , 2009. Mean atmospheric concentrations of monoterpenes from plant origin range from tens of parts per trillion to several parts per billilon (review in Kesselmeier and Staudt 1999).…”

Section: Specificity Of Effects and Ecological Relevancementioning

confidence: 99%

Plant Terpenes Affect Intensity and Temporal Parameters of Pheromone Detection in a Moth

Party¹,

Hanot²,

Saïd³

et al. 2009

Chemical Senses

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In moths, the components of the female pheromone blend are detected in the male antennae by pheromone olfactory receptor neurons (Ph-ORNs) expressing narrowly tuned olfactory receptors. Responses to sex pheromones have generally been thought to be independent from the odorant background. However, interactions between pheromone components and plant volatiles have been reported at behavioral and detection levels. To document the mechanisms of such interactions, we analyzed Ph-ORN responses of Spodoptera littoralis to the main pheromone component, Z9E11-14:Ac, in the presence of 4 monoterpenes. To mimic natural contexts in which plant odors and pheromone emanate from different sources, the 2 stimuli were presented with different temporal patterns and from independent sources. Linalool reversibly reduced the firing response to Z9E11-14:Ac and produced an off effect. Geraniol and geranyl and linalyl acetates reduced the responses to Z9E11-14:Ac with a longer time course. Pulses of linalool over prolonged pheromone stimulation resulted in a discontinuous firing activity. Pulses of pheromone were better separated over a background of linalool, compared with odorless air. The data confirm that plant compounds may modulate the intensity and the temporal coding by Ph-ORNs of pheromone information. This modulation might positively affect mate location at high pheromone density especially nearby a pheromone source.

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