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Meteorology and strategies for using plant attractants in adult noctuid suppression programs

Southwestern Entomologist Supplement 0(21): 47-58, March

Meteorology and strategies for using plant attractants in adult noctuid suppression programs

Atmospheric variables can strongly impact the efficacy of plant-derived attractants used as lures for suppression of noctuid pest insects. Relevant meteorological measurements are discussed that describe release rates of volatile plant compounds, effects of the local atmospheric environment on the spatial distribution of the volatile compounds, and the range of olfactory response of target pest insects to volatile plant compounds. Gaussian plume dispersion simulations using a 2-m source height estimated maximum volatile concentrations 500 m down at the surface that were 36 times greater for moderately stable atmospheric conditions than for extremely unstable conditions. The simulations also revealed that the maximum volatile concentration was located 50 m farther downwind for moderately stable atmospheric conditions than for extremely unstable atmospheric conditions. Potential for development of adult control and monitoring technology will be enhanced by understanding and properly monitoring spatial and temporal characteristics of atmospheric properties within the pest biosphere.

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Accession: 003199719

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