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30 September 2022 Both the Squash Bug Anasa tristis and Horned Squash Bug Anasa armigera (Hemiptera: Coreidae) are Attracted to Vittatalactone, the Aggregation Pheromone of Striped Cucumber Beetle
Donald C. Weber, Ariela I. Haber, Kayla Pasteur, Sean M. Boyle, Thomas P. Kuhar, Mary L. Cornelius
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Abstract

Vittatalactone, the aggregation pheromone of the striped cucumber beetle, Acalymma vittatum (F.) (Coleoptera: Chrysomelidae), is attractive to two species of squash bugs (Hemiptera: Coreidae), the squash bug Anasa tristis (DeGeer) and horned squash bug Anasa armigera (Say). In field trapping experiments in Maryland and Virginia, clear sticky traps baited with 1 mg of a synthetic 8-isomer mix of vittatalactone captured ∼9× more of female A. tristis and of both sexes of A. armigera, whereas male A. tristis were not significantly attracted, compared to unbaited traps. A. armigera showed a distinct dose–response to vittatalactone lure loading in the late season, and this species was more attracted than A. tristis, based on comparison to captures from underneath wooden boards emplaced in adjacent fields. Results suggest that vittatalactone could be a ‘keystone semiochemical’ in colonization of cucurbit hosts by specialist herbivores, and may offer the opportunity for multi-species behavioral control as a component of integrated pest management in cucurbit crops.

Published by Oxford University Press on behalf of Entomological Society of America 2022. This work is written by (a) US Government employee(s) and is in the public domain in the US.
Donald C. Weber, Ariela I. Haber, Kayla Pasteur, Sean M. Boyle, Thomas P. Kuhar, and Mary L. Cornelius "Both the Squash Bug Anasa tristis and Horned Squash Bug Anasa armigera (Hemiptera: Coreidae) are Attracted to Vittatalactone, the Aggregation Pheromone of Striped Cucumber Beetle," Environmental Entomology 51(6), 1136-1140, (30 September 2022). https://doi.org/10.1093/ee/nvac079
Received: 28 April 2022; Published: 30 September 2022
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KEYWORDS
chemical ecology
eavesdropping
keystone semiochemical
monitoring
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