The effect of pyriproxyfen as a "population growth regulator" against Aedes albopictus under semi-field conditions.

An insect growth regulator, pyriproxyfen, has been used for the control of a range of pest insects, including mosquitoes. Pyriproxyfen is effective in inhibiting adult emergence and sterilizing adult females. The Asian tiger mosquito, Aedes albopictus (Skuse), is an important vector of dengue and ch...

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Autores principales:	Shin-ya Ohba, Kazunori Ohashi, Endang Pujiyati, Yukiko Higa, Hitoshi Kawada, Nobuaki Mito, Masahiro Takagi
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d577707fb7f64c0eaf5bf83b0e104b13
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spelling	oai:doaj.org-article:d577707fb7f64c0eaf5bf83b0e104b132021-11-18T07:39:10ZThe effect of pyriproxyfen as a "population growth regulator" against Aedes albopictus under semi-field conditions.1932-620310.1371/journal.pone.0067045https://doaj.org/article/d577707fb7f64c0eaf5bf83b0e104b132013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23843982/?tool=EBIhttps://doaj.org/toc/1932-6203An insect growth regulator, pyriproxyfen, has been used for the control of a range of pest insects, including mosquitoes. Pyriproxyfen is effective in inhibiting adult emergence and sterilizing adult females. The Asian tiger mosquito, Aedes albopictus (Skuse), is an important vector of dengue and chikungunya, and is expanding its distribution throughout Europe and the Americas. In the present study, we evaluated the impact of pyriproxyfen-treated bed nets on population growth of Ae. albopictus under semi-field conditions, using 6 small microcosms. We created microcosms containing breeding sites to simulate the natural ecosystem of vector mosquito and installing miniature bed net treated with 350 mg/m(2) pyriproxyfen in Experiment I and 35 mg/m(2) in Experiment II. For each experiment, we also established microcosms installing untreated polyethylene net (untreated control). The installing nets were provided with artificially torn holes, to simulate damage and allow mosquitoes to penetrate. We released 100 pairs of Ae. albopictus into each microcosm, and allowed them to feed on a mouse under the bed nets at approximately 1-week intervals. In comparison with the untreated control microcosms, the number of eggs laid by the released adults in the pyriproxyfen-treated microcosms was significantly lower in both Experiment I and II. Moreover, egg hatchability was significantly suppressed and pupal mortality was increased. Our results indicate that tarsal contact with pyriproxyfen has been shown to suppress egg production and hatchability in adult females and the auto-dissemination of pyriproxyfen into larval breeding sites by adult mosquitoes, through contact with pyriproxyfen-treated polyethylene bed nets, may suppress the mosquito population density.Shin-ya OhbaKazunori OhashiEndang PujiyatiYukiko HigaHitoshi KawadaNobuaki MitoMasahiro TakagiPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 7, p e67045 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Shin-ya Ohba Kazunori Ohashi Endang Pujiyati Yukiko Higa Hitoshi Kawada Nobuaki Mito Masahiro Takagi The effect of pyriproxyfen as a "population growth regulator" against Aedes albopictus under semi-field conditions.
description	An insect growth regulator, pyriproxyfen, has been used for the control of a range of pest insects, including mosquitoes. Pyriproxyfen is effective in inhibiting adult emergence and sterilizing adult females. The Asian tiger mosquito, Aedes albopictus (Skuse), is an important vector of dengue and chikungunya, and is expanding its distribution throughout Europe and the Americas. In the present study, we evaluated the impact of pyriproxyfen-treated bed nets on population growth of Ae. albopictus under semi-field conditions, using 6 small microcosms. We created microcosms containing breeding sites to simulate the natural ecosystem of vector mosquito and installing miniature bed net treated with 350 mg/m(2) pyriproxyfen in Experiment I and 35 mg/m(2) in Experiment II. For each experiment, we also established microcosms installing untreated polyethylene net (untreated control). The installing nets were provided with artificially torn holes, to simulate damage and allow mosquitoes to penetrate. We released 100 pairs of Ae. albopictus into each microcosm, and allowed them to feed on a mouse under the bed nets at approximately 1-week intervals. In comparison with the untreated control microcosms, the number of eggs laid by the released adults in the pyriproxyfen-treated microcosms was significantly lower in both Experiment I and II. Moreover, egg hatchability was significantly suppressed and pupal mortality was increased. Our results indicate that tarsal contact with pyriproxyfen has been shown to suppress egg production and hatchability in adult females and the auto-dissemination of pyriproxyfen into larval breeding sites by adult mosquitoes, through contact with pyriproxyfen-treated polyethylene bed nets, may suppress the mosquito population density.
format	article
author	Shin-ya Ohba Kazunori Ohashi Endang Pujiyati Yukiko Higa Hitoshi Kawada Nobuaki Mito Masahiro Takagi
author_facet	Shin-ya Ohba Kazunori Ohashi Endang Pujiyati Yukiko Higa Hitoshi Kawada Nobuaki Mito Masahiro Takagi
author_sort	Shin-ya Ohba
title	The effect of pyriproxyfen as a "population growth regulator" against Aedes albopictus under semi-field conditions.
title_short	The effect of pyriproxyfen as a "population growth regulator" against Aedes albopictus under semi-field conditions.
title_full	The effect of pyriproxyfen as a "population growth regulator" against Aedes albopictus under semi-field conditions.
title_fullStr	The effect of pyriproxyfen as a "population growth regulator" against Aedes albopictus under semi-field conditions.
title_full_unstemmed	The effect of pyriproxyfen as a "population growth regulator" against Aedes albopictus under semi-field conditions.
title_sort	effect of pyriproxyfen as a "population growth regulator" against aedes albopictus under semi-field conditions.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/d577707fb7f64c0eaf5bf83b0e104b13
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The effect of pyriproxyfen as a "population growth regulator" against Aedes albopictus under semi-field conditions.

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