Mechanisms of insecticide resistance in Aedes aegypti (L.) (Diptera: Culicidae) from Puerto Rico

Janet Hemingway; R. G. Boddington; J. Harris; S. J. Dunbar

doi:10.1017/s0007485300018630

Mechanisms of insecticide resistance in Aedes aegypti (L.) (Diptera: Culicidae) from Puerto Rico

Janet Hemingway, R. G. Boddington, J. Harris, S. J. Dunbar

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62 Citations (Scopus)

Abstract

A strain of Aedes aegypti (L.) was collected in Rio Piedras, Puerto Rico, in 1987 and reared through to the F2 generation. The strain was shown to be heterozygous for resistance to a range of pyrethroids, but there was no evidence of organophosphate and carbamate resistance. Biochemical studies indicated that the pyrethroid resistance was not metabolically based. Electrophysiological studies at the neuromuscular junction of resistant insects indicated that a kdr (nerve insensitivity) type mechanism was operating in this strain. It is not known whether this mechanism was selected by earlier DDT exposure or by the recent ultra-low-volume applications of pyrethroids.

Original language	English
Pages (from-to)	123-130
Number of pages	8
Journal	Bulletin of Entomological Research
Volume	79
Issue number	1
DOIs	https://doi.org/10.1017/s0007485300018630
Publication status	Published - 1 Mar 1989
Externally published	Yes

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title = "Mechanisms of insecticide resistance in Aedes aegypti (L.) (Diptera: Culicidae) from Puerto Rico",

abstract = "A strain of Aedes aegypti (L.) was collected in Rio Piedras, Puerto Rico, in 1987 and reared through to the F2 generation. The strain was shown to be heterozygous for resistance to a range of pyrethroids, but there was no evidence of organophosphate and carbamate resistance. Biochemical studies indicated that the pyrethroid resistance was not metabolically based. Electrophysiological studies at the neuromuscular junction of resistant insects indicated that a kdr (nerve insensitivity) type mechanism was operating in this strain. It is not known whether this mechanism was selected by earlier DDT exposure or by the recent ultra-low-volume applications of pyrethroids.",

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AU - Harris, J.

AU - Dunbar, S. J.

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AB - A strain of Aedes aegypti (L.) was collected in Rio Piedras, Puerto Rico, in 1987 and reared through to the F2 generation. The strain was shown to be heterozygous for resistance to a range of pyrethroids, but there was no evidence of organophosphate and carbamate resistance. Biochemical studies indicated that the pyrethroid resistance was not metabolically based. Electrophysiological studies at the neuromuscular junction of resistant insects indicated that a kdr (nerve insensitivity) type mechanism was operating in this strain. It is not known whether this mechanism was selected by earlier DDT exposure or by the recent ultra-low-volume applications of pyrethroids.

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DO - 10.1017/s0007485300018630

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JO - Bulletin of Entomological Research

JF - Bulletin of Entomological Research

IS - 1

ER -

Mechanisms of insecticide resistance in Aedes aegypti (L.) (Diptera: Culicidae) from Puerto Rico

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