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Electrophysiological responses of male and female A myelois transitella antennae to pistachio and almond host plant volatiles
Author(s) -
Beck John J.,
Light Douglas M.,
Gee Wai S.
Publication year - 2014
Publication title -
entomologia experimentalis et applicata
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.765
H-Index - 83
eISSN - 1570-7458
pISSN - 0013-8703
DOI - 10.1111/eea.12243
Subject(s) - semiochemical , biology , electroantennography , host (biology) , pheromone , orchard , pest analysis , pyralidae , lepidoptera genitalia , horticulture , green leaf volatiles , botany , sex pheromone , insect , toxicology , ecology , herbivore
The polyphagous navel orangeworm, A myelois transitella W alker ( L epidoptera: P yralidae), is a major insect pest of almonds and pistachios in C alifornia ( USA ). A myelois transitella moths have proven difficult to monitor and control for over 5 decades; however, recent reports indicate progress towards attractants using pheromone or semiochemical blends. Despite advances of a host plant volatile attractant blend that is effective for monitoring moth populations in almond orchards, the blend's attractancy and capture efficacy of A . transitella has not translated to pistachio orchards. The apparent orchard specificity of A . transitella to the blend suggests a different composition of host plant volatiles is needed to either improve the current blend or a new blend formulation is required for monitoring in pistachio orchards. One objective of this study was to evaluate available individual host volatiles via a standardised puff method in combination with electroantennographic analysis. In total 105 volatiles were evaluated individually for their ability to elicit an electrophysiological chemoreception response from excised male and female A . transitella antennae. Male antennae responded significantly higher to alcohols, aldehydes, alkyls, aromatics, and ketones. Female antennae responded significantly higher to benzenoids, monoterpenes, sesquiterpenes, and short‐chain alcohols.