Challenges of pheromone-based mating disruption of Cydia strobilella and Dioryctria abietella in spruce seed orchards.

ABSTRACT: Seed orchards function as the primary source of high-quality seeds for reforestation in many European countries, but their seed yields can be severely reduced due to seed- and cone-feeding insects. We evaluated various parameters of pheromone-based mating disruption for control of the moths Cydia strobilella and Dioryctria abietella, which are major pests in European Picea abies seed orchards. We applied different types of pheromone dispensers (rubber septa or wax droplets) at different densities and heights, and with different amounts of active components, covering whole orchards or part of an orchard. The efficacy of the treatment was evaluated by analysing male captures in pheromone-baited assessment traps, and presence of larvae in cones. A dramatic decrease (94-10

SUBMITTER: Svensson GP 

PROVIDER: S-EPMC5847141 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature