Effects of sublethal concentrations of diflubenzuron and methoprene on aedes aegypti (Diptera: Culicidae) fitness

被引：13

作者：

Da Silva J.J. ^{[1
]}

Mendes J. ^{[1
]}

Lomônaco C. ^{[2
]}

机构：

[1] Instituto de Ciências Biomdicas, Programa de Pós-Gradução em Imunologia e Parasitologia Aplicadas, Uberlândia, MG

[2] Instituto de Biologia, Universidade Federal de Uberlândia, Uberlândia 38.400-902, MG

来源：

International Journal of Tropical Insect Science | 2009年 / 29卷 / 1期

关键词：

Aedes aegypti; Diflubenzuron; Fluctuating asymmetry; Insect growth regulator; Methoprene; South-eastern Brazil;

D O I：

10.1017/S1742758409289648

中图分类号：

学科分类号：

摘要：

The effects of sublethal concentrations of the insect growth regulators (IGRs) diflubenzuron and methoprene on some fitness components of an Aedes aegypti (L.) population in south-eastern Brazil were investigated. The fourth instar larvae of the mosquito were exposed to 20ppb methoprene and 3ppb diflubenzuron, and adult survivors were evaluated for fitness parameters, including body size and biomass, fecundity, fertility, longevity and symmetry. The sublethal concentrations had negative effects on longevity, but biomass, fecundity and fertility were not affected by either IGR. In separate experiments, A. aegypti individuals' surviving concentrations of 2, 3 and 3.5ppb diflubenzuron and 5, 10 and 20ppb methoprene were used for morphological analyses (size and symmetry). Diflubenzuron had negative effects on the mosquito's body symmetry. The observed decreases in longevity and symmetry may have negative impacts on the population dynamics of A. aegypti. © 2009 ICIPE.

引用

页码：17 / 23

页数：6

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