Pheromone dispersion in forests.

A simple generic model for the dispersion of pheromones in a forestedecosystem is presented. Methods for the calculation of various concentration related parameters are described. The influence of different micrometeorological conditions on concentration profiles is discussed. Two separate studies from two different geographical locations lend support to the predictions of the dispersion model. For two different species of Dendroctonus beetles, aggregation behavior was correlated with meteorological condition resulting from inversion profiles.