Resistência a inseticidas em populações de Simulium (Diptera, Simuliidae)

Campos, Jairo; Andrade, Carlos Fernando Salgueirosa de

doi:10.1590/s0102-311x2002000300010

Cited by 10 publications

(4 citation statements)

References 54 publications

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“…Probably, the low level of resistance to AzMe observed in the present study is a result of prevailing insecticide activation by MFOs over detoxification mechanisms. Nevertheless, cases of resistance to OP in black fly populations already have been reported in Brazil [27,28] and Africa [29]. According to a review of cases of resistance in arthropods, the largest group of cases (35.1%) from a total of 504 species resistant to insecticides recorded by the end of 1989 belonged to the order Diptera [30].…”

Section: Resultsmentioning

confidence: 99%

“…27, 2008 O.L. Anguiano et al to OP in black fly populations already have been reported in Brazil [27,28] and Africa [29]. According to a review of cases of resistance in arthropods, the largest group of cases (35.1%) from a total of 504 species resistant to insecticides recorded by the end of 1989 belonged to the order Diptera [30].…”

Section: Azinphosmethyl Acute Toxicitymentioning

confidence: 99%

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Enhanced esterase activity and resistance to azinphosmethyl in target and nontarget organisms

Anguiano

Ferrari

Soleño

et al. 2008

Enviro Toxic and Chemistry

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The organophosphorous compound azinphosmethyl (AzMe) is applied extensively in northern Patagonia (southern Argentina) to manage codling moths (Cydia pomonella). This area is irrigated by fast-flowing channels that provide a favorable habitat for many species, including amphipods (Hyalella curvispina) and a field-mixed population of black flies (Simulium bonaerense, Simulium wolffhuegeli, and Simulium nigristrigatum). In the present study, AzMe susceptibility and carboxylesterase (CarbE) activity from both insecticide-exposed and nonexposed field populations were studied. The median lethal dose determined in codling moths from an insecticide-treated orchard was significantly higher (3.48 microg/insect) than that observed in those from an untreated orchard (0.69 microg/insect). Similarly, the median lethal concentration (LC50) determined in black flies collected from the treated area (0.021 mg/L) was significantly higher than that recorded in those from the untreated site (0.011 mg/L). For amphipods, both a subpopulation susceptible to AzMe (LC50, 1.83 microg/L) and a resistant one (LC50, 390 microg/L) were found in the treated area. Both subpopulations were more resistant to AzMe than the population from the untreated site (LC50, 0.43 microg/L). Significant differences (p < 0.001) in CarbE activities were observed between populations from pesticide-treated and untreated areas. Mean activities +/- standard deviation from treated and untreated sites were 0.21 +/- 0.16 and 0.016 +/- 0.008 micromol/min/mg protein, respectively, for codling moths; 2.17 +/- 1.71 and 0.81 +/- 0.35 micromol/min/mg protein, respectively, for black flies; and 0.27 +/- 0.10 and 0.14 +/- 0.07 micromol/min/mg protein, respectively, for amphipods. The results suggest that enhanced CarbE activity is one of the mechanisms that provide AzMe resistance in H. curvispina, Simulium spp., and C. pomonella populations from the insecticide-treated areas.

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Section: Resultsmentioning

confidence: 99%

Section: Azinphosmethyl Acute Toxicitymentioning

confidence: 99%

Enhanced esterase activity and resistance to azinphosmethyl in target and nontarget organisms

Anguiano

Ferrari

Soleño

et al. 2008

Enviro Toxic and Chemistry

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“…The results obtained demonstrate the insecticidal properties of EOs from the species L. lasiocalycina, L. insignis and L. thymoides in the biocontrol of N. corniger. Despite their inferior insecticidal activity when compared to the commercial agrochemical, essential oils are less harmful to the environment and do not promote the development of resistance in insects (Campos & Andrade, 2002).…”

Section: Discussionmentioning

confidence: 99%

Insecticidal activity of essential oils of species from the genus Lippia against Nasutitermes corniger (Motschulsky) (Isoptera: Termitidae)

Santos¹,

Oliveira²,

Lucchese³

et al. 2020

Sociobiology

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Lippia is one of the main genera in the family Verbenaceae, with 200 species described. Despite its richness in bioactive molecules, with several scientifically proven applications, there is little information on the insecticidal potential of its species. This study aimed to assess the insecticidal potential of essential oils from the species Lippia thymoides (Martius & Schauer); Lippia lasiocalycina (Schauer) and Lippia insignis (Moldenk) against Nasutitermes corniger (Motschulsky) (Isoptera-Termitidae). Insecticidal activity was evaluated by exposure to a contaminated surface, whereby plastic pots were lined with filter paper and imbibed in 1.5 ml of solution containing essential oils (10 µl/ml), with 10 N. corniger specimens per pot. The mortality count was performed at 24 and 48 h. The LC50 was determined by diluting the essential oils to concentrations of 0, 0.625, 1.25, 2.5, 5.0 and 10 µl/ml, which were chemically analyzed by GC-FID and GC-MS. The data indicated high toxicity for the essential oils for the Lippia species tested. The lowest LC50 (0.46 µl/ml) was recorded for L. lasiocalycina. The most common constituents were β-myrcene and (E)-ocimenone in essential oil of L. lasiocalycina, β-myrcene and limonene for L. insignis, and (E)-caryophyllene and caryophyllene oxide for L. thymoides. The results demonstrate the viability of developing biopesticides for N. corniger control.

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“…Dessa forma, alterações no ambiente podem contribuir para o aumento da população desses organismos, pois os simulídeos apresentam uma capacidade de responder a modificações ambientais de forma notável, uma vez que são organismos sensíveis a alterações de caráter biótico ou abiótico em seu habitat (CAMPOS et al, 2002). Uma explosão populacional de simulídeos em um determinado local pode se tornar um problema preocupante, uma vez que esses organismos são vetores de doenças e organismos Esse trabalho teve como objetivo trazer aspectos gerais sobre a biologia e importância de estudos com simulídeos, além de demonstrar os diferentes campos em que esses organismos podem ser estudados, já que estudos com esses animais apresentam aplicabilidade em diferentes áreas da Biologia, Medicina ou Veterinária.…”

Section: Introductionunclassified

Simulídeos (simuliidae: diptera) como objeto de estudo no Brasil e no mundo

Marinho

Santos

Cruz

et al. 2020

Nature and Conservation

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Os Artrópodes constituem um filo que corresponde a cerca de 75% das espécies do planeta, e dentro dessa ordem, encontra-se a Classe dos insetos, principalmente os pertencentes à Ordem Diptera, que correspondem há mais de 150 mil espécies já descritas em todo o mundo. Os simulídeos, inseridos na subordem Nematocera com uma ampla distribuição geográfica, são organismos que apresentam uma grande importância médico-veterinária, por serem transmissores de patógenos, como vermes do gênero Mansonella e Onchocerca, que afetam tanto os seres humanos quanto os animais. Os simulídeos são animais que apresentam uma importância ambiental notável, onde devido ao aumento das concentrações de matérias orgânicas nos rios e ao aporte de dejetos domésticos, agrícolas e industrias, permitem que esses insetos possam ser considerados como organismos bioindicadores da qualidade do ambiente. Filogeneticamente, os simulídeos são um importante grupo na base dos Diptera, que correspondem aos mosquitos e moscas, cujos aspectos evolutivos têm sido pouco estudados. Uma vez que os estudos de desenvolvimento embrionário dos Diptera se restringem em sua maior parte à mosca-da-fruta Drosophila melanogaster, estudos de biologia do desenvolvimento de simulídeos são importantes para compreender aspectos evolutivos fundamentais da evolução do grupo. No presente artigo discutiremos a importância de se estudar os aspectos negligenciados desta numerosa Ordem de insetos.

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Resistência a inseticidas em populações de Simulium (Diptera, Simuliidae)

Cited by 10 publications

References 54 publications

Enhanced esterase activity and resistance to azinphosmethyl in target and nontarget organisms

Enhanced esterase activity and resistance to azinphosmethyl in target and nontarget organisms

Insecticidal activity of essential oils of species from the genus Lippia against Nasutitermes corniger (Motschulsky) (Isoptera: Termitidae)

Simulídeos (simuliidae: diptera) como objeto de estudo no Brasil e no mundo

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