Susceptibility of Aedes aegypti (L) to the insect growth regulators diflubenzuron and methoprene in Uberlândia, State of Minas Gerais

Silva, Juliana Junqueira da; Mendes, Júlio

doi:10.1590/s0037-86822007000600002

Cited by 33 publications

(23 citation statements)

References 15 publications

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“…aegypti larvae in Jazan region is more relevant to the results obtained by other workers. 34,[36][37][38][39][40] In Malaysia, it was found that the larvae of Ae. aegypti exhibited moderate resistance toward Methoprene and low resistance toward Pyriproxyfen, with resistance ratios of 12.7 and 1.4, respectively, but susceptibility to Diflubenzuron.…”

Section: Larval Susceptibilitymentioning

confidence: 99%

Resistance Status of Aedes aegypti to Insecticides in the Jazan Region of Saudi Arabia

Alsheikh¹,

Mohammed²,

Noureldin³

et al. 2016

Biosci., Biotech. Res. Asia

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The present study was designed to provide information on the susceptibility status of the adult and larvae of Aedes aegypti mosquitoes in Jazan region of Saudi Arabia. Bioassay tests were performed on adults and larvae by using WHO recommended concentrations and test kits. Adults of Ae. aegypti mosquitoes were exposed to test papers impregnated with Lambda-cyhalothrin (0.05%), Cyfluthrin (0.15%), Deltamethrin (0.05%), Permethrin (0.75%), Fenitrothion (1%), Bendiocarb (0.1%) and DDT (4%) insecticides. Ae. aegypti mosquitoes were found to be susceptible only to Cyfluthrin; (mortality rate was 100 %), whereas variable resistances were observed from the rest of the other insecticides tested (mortality rates ranged between 93.6 and 17%).

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Section: Larval Susceptibilitymentioning

confidence: 99%

Resistance Status of Aedes aegypti to Insecticides in the Jazan Region of Saudi Arabia

Alsheikh¹,

Mohammed²,

Noureldin³

et al. 2016

Biosci., Biotech. Res. Asia

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“…DFB is an insect growth regulator (IGR) that blocks chitin synthesis (Martins and Silva, 2004). Several studies showed the successful use of this insecticide in larvae control (Martins and Silva, 2004;Silvia and Mendes, 2007;Chen et al, 2008;Seccacini et al, 2008).…”

Section: Please Scroll Down For Articlementioning

confidence: 99%

Ecotoxicity and Environmental Risk Assessment of Larvicides Used in the Control ofAedes aegyptitoDaphnia magna(Crustacea, Cladocera)

Abe

Coleone

Machado

et al. 2014

Journal of Toxicology and Environmental Health, Part A

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Dengue transmitted by mosquitoes of the genus Aedes, species aegypti, is a major public health concern in Brazil. The chemical control of the mosquito larvae has been performed with the larvicide temephos since 1967. However, vector resistance was reported to temephos in several Brazilian states, and the Ministry of Health ordered the replacement of this larvicide by diflubenzuron (DFB), an inhibitor of chitin synthesis. Both insecticides are diluted in water with larvae and are able to reach aquatic environments in which they subsequently adversely damage nontarget organisms. The aims of this study were to (1) determine the acute toxicity (EC50) and environmental risk (RQ) of DFB and temephos to the microcrustacean Daphnia magna, and (2) evaluate the chronic toxicity (no-observed-effect concentration [NOEC] and lowest-observed-effect concentration [LOEC]) of these larvicides to D. magna. The experiments were performed according to a completely randomized design. The estimated 48-h EC50 of temephos was 0.15 μg/L (lower limit = 0.1 and upper limit = 0.2 μg/L) and the 48-h EC50 of DFB was 0.06 μg/L (lower limit = 0.03 and upper limit = 0.1 μg/L). RQ values were 4.166.7 to DFB and 6.666.6 to temephos. NOEC and LOEC values were respectively 2.5 and 5 ng/L for DFB, and respectively 6.2 and 12.5 ng/L for temephos. Thus, temephos and DFB are classified as highly toxic to Daphnia magna and pose a high environmental risk to this species. Mortality of D. magna was observed at concentrations lower than those used in the field to control A. aegypti larvae.

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“…However, according to recent studies, mosquitoes and other pests also have developed resistance to methoprene and pyriproxyfen (Paul et al . ; Silva & Mendes ; Dennehy et al . ).…”

Section: Introductionmentioning

confidence: 99%

“…Methoprene and pyriproxyfen, particularly, belong to the juvenile hormone (JH) agonists (JHAs) that are one of three classes of IGR insecticides effective against mosquitoes both as larvicides and inhibitors of adult emergence (Ansari et al 2005). However, according to recent studies, mosquitoes and other pests also have developed resistance to methoprene and pyriproxyfen (Paul et al 2005;Silva & Mendes 2007;Dennehy et al 2010). Hence, there is an urgent need to develop novel IGR insecticides.…”

Section: Introductionmentioning

confidence: 99%

Insect growth regulatory and larvicidal activity of chalcones against Aedes albopictus

Lee

Choi

Lee

et al. 2018

Entomological Research

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Widespread use of chemical insecticides has resulted in development of insect resistance and natural products with biological activities could become an attractive alternative to control insect pests. In order to find more effective insecticides for controlling mosquito, various mosquitocidal compounds are studied. Recently, juvenile hormone antagonists (JHANs) have been found to be to safe and effective insecticides for control of mosquito. In order to identify novel insecticidal compounds with JHAN activity, several chalcones were surveyed on their JHAN activities and larvicidal activities against Aedes albopictus larvae. Among them, 2 0 -hydroxychalcone and cardamonin showed high levels of JHAN and mosquito larvicidal activities. These results suggested that chalcones with JHAN activity could be useful for control of mosquito larvae.

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Susceptibility of Aedes aegypti (L) to the insect growth regulators diflubenzuron and methoprene in Uberlândia, State of Minas Gerais

Abstract: Aedes aegypti (L)(

Cited by 33 publications

References 15 publications

Resistance Status of Aedes aegypti to Insecticides in the Jazan Region of Saudi Arabia

Resistance Status of Aedes aegypti to Insecticides in the Jazan Region of Saudi Arabia

Ecotoxicity and Environmental Risk Assessment of Larvicides Used in the Control ofAedes aegyptitoDaphnia magna(Crustacea, Cladocera)

Insect growth regulatory and larvicidal activity of chalcones against Aedes albopictus

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