Attraction of Moths of Two Noctuidae Species to Field Traps Baited With a Mixture of two to three Homologous Acetates in Poland.

Abstract

Field trials of a series of monounsaturated straight-chain acetates, including the (Z)-5-tetradecenyl acetate, (Z)-9-tetradecenyl acetate (pheromone blend A) and (Z)-5-decenyl acetate, (Z)-7-dodecenyl acetate, (Z)-9-tetradecenyl acetate (pheromone blend B), attracted the following species from the title family: Agrotis exclamationis (Linnaeus) and Agrotis segetum (Denis & Schiffermüller), respectively. Cutworms were monitored in the 2016-2017 season with the use of white Delta-type traps and different pheromone dispensers that contained above blends. The identified pheromone components at blend A elicited maximum trap captures when combined in a Z5-14:Ac/Z9-14:Ac-mixture ratio 100:16 at dose of 350 µg. The attractiveness of dispensers with pheromone blend B combined in a Z5-10:Ac/Z7-12:Ac/Z9-14:Ac-mixture ratio 1:1:1 at dose of 200 µg was the highest. Most kinds of the dispensers tested were similar or more active to the standard lures of the Csalomon company. Pheromone component of the A. exclamationis, (Z)-5-tetradecenyl acetate, was synthesized with a new, simple, and very efficient method in high summary yield and excellent isomeric purity.