Environmental Entomology (2014) 43, 1628-1640

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A.L. Knight, R. Hilton, E. Basoalto and L.L. Stelinski (2014)
Use of glacial acetic acid to enhance bisexual monitoring of tortricid pests with kairomone lures in pome fruits
Environmental Entomology 43 (6), 1628-1640
Abstract: Studies were conducted to assess glacial acetic acid (GAA) with various host plant volatiles (HPVs) and the sex pheromone, (E,E)-8, 10-dodecadien-1-ol, of codling moth, Cydia pomonella (L), as lures in traps for tortricid pests that often co-occur in tree fruits in the western United States. In addition to codling moth, field trapping studies were conducted with oriental fruit moth, Grapholita molesta (Busck), obliquebanded leafroller Choristoneura rosaceana (Harris), the leafroller Pandemis pyrusana Kearfott, and the eyespotted budmoth, Spilonota ocellana (Denis and Schiffermüller). HPVs included ethyl (E,Z)-2,4-decadienoate (pear ester), (E)-4,8dimethyl-l,3,7-nonatriene, butyl hexanoate, (E)-ß-ocimene, (E)-ß-farnesene, and farnesol. Three types of GAA co-lures differing in a 10-fold range in weekly evaporation rates were tested. The evaporation rate of GAA co-lures was an important factor affecting moth catches. The highest rate tested captured fewer codling moth but more leafrollers and eyespotted budmoth. GAA co-lures caught both sexes of each species. The field life of butyl hexanoate and (E)-ß-ocimene lures were much shorter than pear ester or sex pheromone lures. Adding GAA to pear ester or to (E)-ß-ocimene significantly increased the catches of only codling moth or oriental fruit moth, respectively. Combining pear ester or (E) -ß-ocimene with GAA did not affect the catch of either species compared with the single more attractive HPV. Adding HPVs to GAA did not increase the catches of either leafroller species or eyespotted budmoth. Traps baited with pear ester, sex pheromone, and GAA for monitoring codling moth were also effective in classifying pest pressure of both leafroller species within orchards.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Alan L. Knight, Lukasz Stelinski, Esteban Basoalto

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


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Cydia pomonella
Grapholita molesta
Choristoneura rosaceana
Spilonota ocellana
Pandemis pyrusana