A method for concurrently emitting vapors of sex pheromones of different insects.

摘要

An efficient cost- and labor-saving method is proposed for controlling the population of two kinds or more of different species of insectan pests in a field by means of distributing dispensers of sex pheromone compounds for the respective species of the insects when one of the sex pheromone compounds is an unsaturated C<Sub>10</Sub> to C<Sub>12</Sub> alcohol and the other is an unsaturated C<Sub>14</Sub> to C<Sub>20</Sub> acetate or aldehyde. When these two classes of the compounds are mixed in such a proportion that the overall solubility parameter 8 of the mixture is 9.1 to 9.7 and the mixture is contained in a dispenser body made of polyethylene or a copolymer mainly composed of ethylene moiety, the two compounds can be concurrently emitted from the dispenser in the form of a vapor each at a controlled rate over a desired length of time.