Environmental Entomology (1999) 28, 81-87

Alan L. Knight and J.E. Turner (1999)
Mating disruption of Pandemis spp. (Lepidoptera : Tortricidae)
Environmental Entomology 28 (1), 81-87
Abstract: We evaluated the potential of sex pheromones to disrupt moth communication and mating of Pandemis leafrollers (likely P. pyrusana Kearfott). The sex pheromone of P. pyrusana, 94:6 (Z)-11-tetradecenyl acetate (Z11-14:Ac): (Z)-9-tetradecenyl acetate, was compared with Z11-14:Ac alone, (E)-11-tetradecenyl acetate (E11-14:Ac) alone, and a 94:6 blend of Z11-14:Ac and (Z)-11-tetradecanal in replicated trials in 0.1-ha plots. All blends significantly reduced moth captures in lure-baited traps and mating of tethered, virgin females. No significant differences were found among pheromone blends, except trap catches in plots treated with E11-14:Ac were significantly higher than in the other pheromone-treated plots. No significant differences in moth catch were found in plots treated with 250-1,000 dispensers per hectare releasing the Pandemis pheromone blend. The percentage of disruption in treated versus untreated plots was not related to the mean dispenser emission rate measured over 2-wk time periods for dispensers releasing either the Pandemis pheromone or Z11-14:Ac alone. However, percentage disruption in plots treated with pheromone was significantly and negatively related to population density measured as moth catch in the untreated plots. Larger orchard trials are needed to evaluate the efficacy and economics of using 500-700 dispensers per hectare loaded with Z11-14:Ac to manage Pandemis.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Alan L. Knight

Research topic(s) for pests/diseases/weeds:
pheromones/attractants/traps

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Pandemis pyrusana	Apple (Malus)