Olfactory response of predatory mites to vegetative and reproductive parts of coconut palm infested by Aceria guerreronis

Show simple item record Pallini, Angelo Melo, José Wagner S. Lima, Debora B. Oliveira, José Eudes M. Gondim Jr., Manoel G. C. 2018-09-17T11:25:12Z 2018-09-17T11:25:12Z 2011-04-16
dc.identifier.issn 15729702
dc.description.abstract The phytophagous mite Aceria guerreronis Keifer is an important pest of coconut worldwide. A promising method of control for this pest is the use of predatory mites. Neoseiulus baraki (Athias-Henriot) and Proctolaelaps bickleyi Bram are predatory mites found in association with A. guerreronis in the field. To understand how these predators respond to olfactory cues from A. guerreronis and its host plant, the foraging behavior of the predatory mites was investigated in a Y-tube olfactometer and on T-shaped arenas. The predators were subjected to choose in an olfactometer: (1) isolated parts (leaflet, spikelet or fruit) of infested coconut plant or clean air stream; (2) isolated parts of non-infested or infested coconut plant; and (3) two different plant parts previously shown to be attractive. Using T-shaped arenas the predators were offered all possible binary combinations of discs of coconut fruit epidermis infested with A. guerreronis, non-infested discs or coconut pollen. The results showed that both predators were preferred (the volatile cues from) the infested plant parts over clean air. When subjected to odours from different infested or non-infested plant parts, predators preferred the infested parts. Among the infested plant parts, the spikelets induced the greatest attraction to predators. On the arenas, both predators preferred discs of coconut fruits infested with A. guerreronis over every other alternative. The results show that both predators are able to locate A. guerreronis by olfactory stimuli. Foraging strategies and implications for biological control are discussed. en
dc.format pdf pt-BR
dc.language.iso eng pt-BR
dc.publisher Experimental and Applied Acarology pt-BR
dc.relation.ispartofseries v. 55, n. 2, p. 191– 202, out. 2011 pt-BR
dc.rights Springer Nature Switzerland AG. pt-BR
dc.subject Cocos nucifera pt-BR
dc.subject Aceria guerreronis pt-BR
dc.subject Predators pt-BR
dc.subject Volatile pt-BR
dc.subject Behavior pt-BR
dc.title Olfactory response of predatory mites to vegetative and reproductive parts of coconut palm infested by Aceria guerreronis en
dc.type Artigo pt-BR

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    Artigos Técnico-científicos na área de Entomologia

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