Evaluation of the working radius of pheromone preparations for the brown marmorated stink bug Halyomorpha halys
Keywords:
brown marmorated stink bug, Halyomorpha halys, invasion, phytosanitary monitoring, pheromone trapsAbstract
This article presents the trial results aimed to evaluate the working radius of the pheromone formulation for the adults of the brown marmorated stink bug Halyomorpha halys under the field conditions in 2019. The cumulative plastic traps of “pyramid” type with a synthetic pheromone preparation manufactured by a Russian producer were used. The chemical composition of the preparation included a mixture of two stereoisomers: (3S, 6S, 7R, 10S)-10.11-epoxy-1-bisabolene-3-ol and (3R,6S,7R,10S)-10.11-epoxy-1-bisabolene-3-ol, and the substance – synergist-methyl-(E,E,Z)-2,4,6-decatrienoate. Previously, this composition had been proved to be effective in catching nymphs and adults of the brown marmorated stink bug during the field trials at the dosage of 12 mg/trap. The results of the 2019 trials showed that when labeled bugs were released in fruit orchards from a distance of 10 m (corresponding to an area of 0.03 ha), the probability of adults’ catching in traps was 9 %. The bug catching probability from the distance of 20 m (an area of 0.1 ha) was lower, reaching only 3 %. The total number of bugs caught in the trap in the hazelnut plantations was half of that in fruit orchards, and the probability of catching of labeled adults released from 10 m (0.03 ha) was 2.5 %.
