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20 October 2020 Attractiveness of Male and Female Adults of Cryptolestes ferrugineus (Coleoptera: Laemophloeidae) to Conspecifics With and Without Grain
Sarah Currie, Vimala S. K. Bharathi, Fuji Jian, Paul G. Fields, Digvir S. Jayas
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Abstract

Whether stored-grain insects can communicate with each other inside stored-grain bulks is an important question for the development of pest management programs. Movements of the individual adults of Cryptolestes ferrugineus towards caged adult(s), in the presence or absence of wheat, were studied inside an apparatus (10 cm length), using an infrared camera.The numbers of the caged adults were 1, 20, or 50 of females or males, and 100 or 200 mixed-sex adults. Without grain, both males and females moved towards the caged single male, but not the caged single female. With grain, neither males nor females moved towards the caged single male or female. When 50 males were added to the cage, females did move significantly towards the caged males.There were trends for introduced males and females to move towards caged males at higher densities.

© The Author(s) 2020. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.
Sarah Currie, Vimala S. K. Bharathi, Fuji Jian, Paul G. Fields, and Digvir S. Jayas "Attractiveness of Male and Female Adults of Cryptolestes ferrugineus (Coleoptera: Laemophloeidae) to Conspecifics With and Without Grain," Environmental Entomology 49(6), 1282-1289, (20 October 2020). https://doi.org/10.1093/ee/nvaa121
Received: 25 July 2020; Accepted: 5 September 2020; Published: 20 October 2020
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KEYWORDS
communication
distribution
movement
pheromone
rusty grain beetle
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