« Previous AbstractCombination Phenyl Propionate/Pheromone Traps for Monitoring Navel Orangeworm (Lepidoptera: Pyralidae) in Almonds in the Vicinity of Mating Disruption    Next AbstractDiel Periodicity in Males of the Navel Orangeworm (Lepidoptera: Pyralidae) as Revealed by Automated Camera Traps »

J Econ Entomol

Title:		Factors Affecting Disruption of Navel Orangeworm (Lepidoptera: Pyralidae) Using Aerosol Dispensers
Author(s):		Burks CS; Thomson DR;
Address:		"USDA, Agricultural Research Service, San Joaquin Valley Agricultural Sciences Center, Parlier, CA. Pacific Biocontrol Corporation, Vancouver, WA"
Journal Title:		J Econ Entomol
Year:		2020
Volume:		113
Issue:		3
Page Number:		1290 - 1298
DOI:		10.1093/jee/toaa010
ISSN/ISBN:		1938-291X (Electronic) 0022-0493 (Linking)
Abstract:		"Mating disruption is used to help manage the navel orangeworm on approximately 200,000 ha of tree nut crops. Aerosol dispensers are the most common formulation, and all formulations use an incomplete pheromone blend consisting solely of (Z11,Z13)-hexadecadienal. Profile analysis (examination of capture and males in pheromone traps as a function of spatial density of dispensers) demonstrated a sharp drop of males captured with a very low density of dispensers, and then an approximately linear relationship between 90 and approaching 100% suppression. This near-linear portion of the profile includes both dispenser densities in which crop protection has been demonstrated, and densities in which it is unlikely. Suppression of males in pheromone traps was lost the next night after dispensers were removed, suggesting that the active ingredient was not persistent in the orchard environment. During most of the summer preharvest period, turning the dispensers off 1 or 2 h before the end of the predawn period of sexual activity provides the same amount of suppression of sexual communication as emission throughout the period of sexual activity. This suggests that encountering the pheromone from the mating disruption dispensers had a persistent effect on males. During the autumn postharvest period, only emission prior to midnight suppressed communication on nights on which the temperature fell below 19 degrees C by midnight. These findings and the analysis will help manufacturers refine their offerings for mating disruption for this important California pest, and buyers of mating disruption to assess cost-effectiveness of competing offerings"
Keywords:		"Aerosols Animals Insect Control Male *Moths Pheromones/pharmacology Reproduction *Sex Attractants Sexual Behavior, Animal Amyelois transitella Pistacia vera Prunus dulcis almond mating disruption pistachio;"
Notes:		"MedlineBurks, Charles S Thomson, Donald R eng Research Support, Non-U.S. Gov't England 2020/01/24 J Econ Entomol. 2020 Jun 6; 113(3):1290-1298. doi: 10.1093/jee/toaa010"