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A survey of insecticide susceptibility in Plutella xylostella (L.) (Lepidoptera: Yponomeutidae) in the Federal District, Brazil Neotropical Entomology
CASTELO BRANCO,MARINA; GATEHOUSE,ALEXANDER G..
The level of insecticide susceptibility of strains of Plutella xylostella (L.) from the Federal District was evaluated in 1995 and 1996. A homogeneity in acephate and phentoate susceptibility was observed in the surveyed strains. One strain, highly susceptible to Bacillus thuringiensis lost its susceptibility after 10 insecticide sprays in two generations in the field with a 36-fold increase in its LC50. Movements of the pest could have accounted for the observed results.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Insecta; Diamondback moth; Insecticide resistance.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2001000200019
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Contrasting patterns of insecticide resistance and knockdown resistance (kdr) in Aedes aegypti populations from Jacarezinho (Brazil) after a Dengue Outbreak Rev. Bras. entomol.
Aguirre-Obando,Oscar Alexander; Pietrobon,Anna Julia; Bona,Ana Caroline Dalla; Navarro-Silva,Mário Antônio.
ABSTRACT After a dengue outbreak, the knowledge on the extent, distribution and mechanisms of insecticide resistance is essential for successful insecticide-based dengue control interventions. Therefore, we evaluated the potential changes to insecticide resistance in natural Aedes aegypti populations to Organophosphates (OP) and Pyrethroids (PY) after chemical vector control interventions. After a Dengue outbreak in 2010, A. aegypti mosquitoes from the urban area of Jacarezinho (Paraná, Brazil) were collected in 2011 and 2012. Insecticide resistance to OP Temephos was assessed in 2011 and 2012 by dose–response bioassays adopting WHO-based protocols. Additionally, in both sampling, PY resistance was also investigated by the Val1016Ile mutation genotyping....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioassays; Dengue; Insecticide resistance; Knockdown resistance; Pyrethroids; Temephos.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262016000100094
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Effect of phenobarbital on inducing insecticide tolerance and esterase changes in Aedes aegypti (Diptera: Culicidae) Genet. Mol. Biol.
Sousa-Polezzi,Rita de Cássia; Bicudo,Hermione Elly Melara de Campos.
The effect of phenobarbital (PB) on the induction of tolerance to the organophosphorous insecticide temephos (TE) was investigated in Aedes aegypti L4 larvae submitted to two different PB-treatments:(1) continuous treatment from the egg to the larval L4 stage and (2) discontinuous treatment in which L4 larvae were exposed for 30 h. Mosquitoes from two Brazilian cities were studied: São José do Rio Preto (SJ) in São Paulo State and Goiânia (GO) in Goiás State. According to criterions established by World Health Organization (WHO) mosquitoes from SJ are organophosphate-susceptible while mosquitoes from GO are organophosphate-resistant. For both SJ and GO larvae the two different PB-treatments resulted in significantly increased tolerance (measured by reduced...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aedes aegypti; Insecticide resistance; Phenobarbital; Tolerance; Pyperonyl butoxide; Esterases.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000200024
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Effect of the synergists piperonyl butoxide and DEF in deltamethrin resistance on strains of Rhyzopertha dominica (F.) (Coleoptera: Bostrychidae) Anais da SEB
Lorini,Irineu; Galley,David J..
Synergists are an important research tool in the laboratory to help to determine the mechanisms of resistance involved in a particular population. This kind of investigation has produced valuable results in understanding resistance to pesticides. The ability of these compounds in suppressing deltamethrin resistance on four strains of Rhyzopertha dominica (F.) was evaluated under laboratory conditions. Two susceptible strains, obtained from the eighth generation in laboratory without any selection were tested; other two resistant strains consisted in the fifth deltamethrin selected generation. Each strain was bioassayed on filter paper impregnated with deltamethrin associated with a synergist in different proportions, following the methods recommended by...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Insecta; Stored grain; Insecticide resistance; Resistance mechanisms.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80592000000400015
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Evaluation of pyrethroids toxicity in a laboratory strain and a fi eld population of Rachiplusia nu (Lepidoptera: Noctuidae) using two bioassay techniques Rev. Soc. Entomol. Argent.
Russo,Romina; Gamundi,Juan C.; Alzogaray,Raúl A..
Soybean is the most important crop in Argentina and Rachiplusia nu (Gueneé) (Lepidoptera: Noctuidae) is one of its main pests. In this study, the toxicity of five pyrethroids applied topically and by exposure to films on filter paper was evaluated on third instar larvae from a laboratory strain and a field population of R. nu. Four cyanopyrethroids and one non-cyanopyrethroid (permethrin) were tested. All cyanopyrethroids showed the same order of increasing toxicity, regardless of the form of application and origin of the larvae: cypermethrin < ?-cyhalothrin < deltamethrin < ß-cyfluthrin. Knock down Dose 50% and Knock down Time 50% values increased as a function of the solubility of cyanopyrethroids in water. Permethrin showed a different...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soybean looper; Soybean pests; Insecticide resistance.
Ano: 2012 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802012000100011
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Fitness cost in field Anopheles labranchiae populations associated with resistance to the insecticide deltamethrin Rev. Bras. entomol.
Tabbabi,Ahmed; Daaboub,Jabeur.
Abstract We evaluated in the present study the effect of deltamethrin resistance on the fitness cost of the filed populations of Anopheles labranchiae. A susceptible population was used as reference to do different comparisons. We selected the most resistant larvae population collected from northern Tunisia. Eggs were used for study of life history traits including developmental time, larvae mortality, fertility, hatchability and adult sex-ratio. Our results showed that deltamethrin resistance affected negatively (p < 0.05) the developmental time with the median range of 70 h, mortality with the rate of 7 folds in resistant population and hatchability which are lower than in susceptible population. Whereas, no significant differences were detected in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Deltamethrin; Insecticide resistance; Fitness cost; Anopheles labranchiae; Malaria vector; Tunisia.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262018000200107
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Influence of parasitism by Chelonus insularis Cresson (Hymenoptera: Braconidae) on the susceptibility of Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) to insecticides Neotropical Entomology
Zenner,Ingeborg; Álvarez,Alonso; Barreto,Sandra.
The egg-larval parasitoid Chelonus insularis Cresson is a key parasitoid of the fall armyworm Spodoptera frugiperda (J. E. Smith) during the second field generation in the upper Magdalena River Basin, Colombia. In spite of selection pressure, the higher susceptibility of the second generation fall armyworm larvae to insecticides, compared with that of the first generation, suggests that the parasitism may be responsible for the apparent difference in susceptibility. Parasitized and non-parasitized 2nd-instar larvae of the fall armyworm were tested for susceptibility to chlorpyriphos, methomyl, cypermethrin, and Bacillus thuringiensis in the laboratory, using the leaf dip test. Parasitized larvae were up to 3.93 times more susceptible to chlorpyriphos, 3.71...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fall armyworm; Egg-larval parasitoid; Insecticide resistance; Integrated pest management.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2006000600015
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Insecticide resistance in Argentine populations of Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) Neotropical Entomology
Lietti,Marcela M.M.; Botto,Eduardo; Alzogaray,Raúl A..
The tomato leafminer, Tuta absoluta (Meyrick), is one of the key pests of tomato in Argentina. Since its dispersal in the 1970s, chemical control has been the main method of controlling it. However, reduced efficacy of some of the recommended insecticides has been observed since the 1980s. The aim of this work was to study the toxicity of three insecticides widely used in chemical control of T. absoluta (abamectin, deltamethrin and methamidophos) on larvae from a laboratory susceptible population (CASTELAR) and two greenhouse populations (ROSARIO and BELLA VISTA). Insecticides were dissolved in acetone and topically applied to the mid-dorsal abdominal region of two-day old 4th instar larvae. LD50 values were estimated and the Resistance Ratio (RR) for each...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Tomato leafminer; Deltamethrin; Abamectin; Metamidophos; Insecticide resistance.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2005000100016
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Insecticide resistance in Plutella xylostella (L.) (Lepidoptera: Yponomeutidae) in the Federal District, Brazil Anais da SEB
Castelo Branco,Marina; Gatehouse,Alexander G..
The levels of resistance to the insecticides cartap, deltamethrin and metamidophos were evaluated for three populations of the Diamondback Moth Plutella xylostella (L.) from the Federal District, Brazil in laboratory bioassays. The larvae of DBM showed levels of resistance to deltamethrin between 4 and 47 fold relative to a susceptible laboratory strain. The level of resistance to metamidophos was 2-9 fold greater than that of the susceptible strain. No resistance to cartap was detected.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Insecta; Diamondback moth; Insecticide resistance.
Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591997000100010
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MANAGING PEST RESISTANCE: THE POTENTIAL OF CROP ROTATIONS AND SHREDDING AgEcon
Babcock, Bruce A.; Secchi, Silvia.
The current debate over resistance management plans mandated by the Environmental Protection Agency for transgenic crops ignores management practices that are complementary to refuge schemes. A dynamic production model is developed that measures the costs and benefits of crop rotation and shredding in terms of delaying resistance to Bt corn.
Tipo: Conference Paper or Presentation Palavras-chave: Biotechnology; Common property resource; Crop rotation; European Corn Borer; Externalities; Insecticide resistance; Integrated pest management; Intertemporal optimization; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.
Ano: 1999 URL: http://purl.umn.edu/21597
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Molecular docking of Anopheles gambiae and Aedes aegypti glutathione S-transferases epsilon 2 (GSTE2) against usnic acid: an evidence of glutathione conjugation BABT
Maia,Rafael Trindade; Nadvorny,Daniela.
The aim of this study was to develop a theoretical model using Anopheles gambiae GSTE2 structure as template for Aedes aegypti GSTE2 by homology modeling Docking simulations were performed for both the enzymes against usnic acid in neutral and anionic forms. Ramachandran plot revealed that 93.9% of the GSTE2 model residues were located on most favored regions. Model evaluation was made by the ANOLEA and GROMOS analysis. Docking results indicated that the enzymes were able to form glutathione-conjugate with usnic acid in both the forms (anionic and neutral).
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anopheles gambiae; Aedes aegypti; Molecular modeling; Insecticide resistance.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000500689
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Neotropical brown stink bug (Euschistus heros) resistance to methamidophos in Paraná, Brazil PAB
Sosa-Gómez,Daniel Ricardo; Silva,Jovenil José da.
The objective of this work was to evaluate the soybean neotropical brown stink bug (Euschistus heros) resistance to methamidophos through laboratory bioassays. Bioassays were carried out using populations of adults and nymphs of Euschistus heros in the last instar collected in soybean crops in Paraná State. Highest frequencies of genotypes resistant to methamidophos were observed in Alvorada do Sul, Toledo and Nova Santa Rosa, PR. Populations from Bela Vista do Paraíso, Araruna, Campo Mourão, Mariluz, Cascavel, São João do Ivaí, and Mamboré were more susceptible to methamidophos. However, an increase on resistant genotypes in this locations cannot be discarded.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glycine max; Chemical control; Insecticide resistance; Susceptibility.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2010000700019
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RESISTÊNCIA nas lavouras de soja: já parou para pensar no tamanho desse problema? Infoteca-e
Informação é a chave para a tomada de decisão! Plantas daninhas resistentes a herbicidas. Ferrugem da soja resistentes a fungicidas. Resistência de pragas a inseticidas.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) Palavras-chave: Soja; Doença de planta; Praga de planta; Erva daninha; Resistência a produtos químicos; Soybeans; Pesticide resistance; Plant pests; Plant diseases and disorders; Fungicide resistance; Herbicide resistance; Insecticide resistance.
Ano: 2012 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/915961
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Spread of phosphine resistance among brazilian populations of three species of stored product insects Neotropical Entomology
Pimentel,Marco A G; Faroni,Lêda R D'A; Silva,Felipe H da; Batista,Maurílio D; Guedes,Raul N C.
The resistance to fumigant insecticides in stored-products insects is often recorded. Several factors influence the evolution of insecticide resistance. Among these, the frequency of applications and the migration of resistant populations are of primary importance for the stored-product insects. The aim of this study was to characterize the spectrum and investigate the status of phosphine resistance in Brazil, in 13 populations of the Coleoptera Tribolium castaneum Herbst (Tenebrionidae), ten populations of Rhyzopertha dominica (Fabr.) (Bostrichidae), and eight populations of Oryzaephilus surinamensis (L.) (Silvanidae). The pattern of resistance dispersion in the populations of these species was also verified. The bioassays for the detection of phosphine...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Tribolium castaneum; Rhyzopertha dominica; Oryzaephilus surinamensis; Insecticide resistance; Migration; Stored grain.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000100014
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Status and preliminary mechanism of resistance to insecticides in a field strain of housefly (Musca domestica, L) Rev. Bras. entomol.
Li,Qingfeng; Huang,Jianbo; Yuan,Jianzhong.
ABSTRACT Resistance profiles of houseflies (Gol-RR) collected from a field in Golmud city, Qinghai province, China, were determined for seven insecticides using topical bioassays. Resistance ratios of >1219.51, 153.17, >35.43, 6.12, 3.24, 1.73, and 0.86-fold were obtained for propoxur, cypermethrin, imidacloprid, indoxacarb, chlorpyrifos, fipronil, and chlorfenapyr, respectively, relative to a laboratory susceptible strain (SS). Synergism experiments showed that piperonyl butoxide (PBO), triphenylphosphate (TPP), and diethyl maleate (DEM) increased propoxur toxicity by >105.71, >7.88, and >5.15-fold in the Gol-RR strain, compared with 5.25, 2.00, and 1.39-fold in the SS strain, indicating the involvement of P450 monooxygenases, esterases,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Acetylcholinesterase activity; Insecticide resistance; Musca domestica; Resistance mechanism; Synergism.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262018000400311
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Strategies for controlling house fly populations resistant to cyromazine Neotropical Entomology
CRESPO,DIANA C.; LECUONA,ROBERTO E.; HOGSETTE,JEROME A..
The objectives of this study were to compare, from both biological and economic viewpoints, the impact of various control strategies and evaluate their effect on cyromazine-resistant Musca domestica L., and beneficial house fly pupal parasitoids on caged-layer farms (240,000 hens) in Argentina. The strategies evaluated were: chemical, chemical + cultural, and chemical + cultural + biological (integrated management). The products used were: cyromazine 1% and 50%, DDVP, azamethiphos with and without z-9-tricosene, lime, and the parasitoids Spalangia endius Walker and Muscidifurax raptor Girault &amp; Sanders. In the absence of control measures, fly density increased quickly and the average parasitism rate was 12%. When only chemical control was used, fly...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Musca domestica; Insecticide resistance; Biological control; Spalangia endius; Muscidifurax raptor; Poultry house.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2002000100019
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Synergistic potential of dillapiole-rich essential oil with synthetic pyrethroid insecticides against fall armyworm Ciência Rural
Fazolin,Murilo; Estrela,Joelma Lima Vidal; Medeiros,André Fábio Monteiro; Silva,Iriana Maria da; Gomes,Luiara Paiva; Silva,Maria Samylla de Farias.
ABSTRACT: The objective of this study was to evaluate the synergy and response homogeneity of the Spodoptera frugiperda larvae population to the Piper aduncum essential oil in combination with pyrethroid insecticides (alpha-cypermethrin, beta-cypermethrin, fenpropathrin, and gamma-cyhalothrin) compared to piperonylbutoxide (PBO) as positive control. Synergism (SF) comparisons were obtained using lethal concentration (LC50) and lethal dose (LD50) ratios of insecticides individually and in their respective synergistic combinations with essential oil and PBO. Dose/concentration-mortality slope curves were used to establish relative toxicity increase promoted by synergism. They also determined homogeneity response. Residual contact revealed significant...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Alpha-cypermethrin; Beta-cypermethrin; Fenpropathrin; Gamma-cyhalothrin; Insecticide resistance.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000300382
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Utilização de bioensaios e marcadores moleculares para detecção da resistência de coleópteros de produtos armazenados a inseticidas Rev. Bras. entomol.
Ceruti,Fabiane Cristina; Lázzari,Sonia Maria Noemberg.
The qualitative and quantitative losses caused by stored product insects are of great concern, and since there is only a few active ingredients available for their control it is very important to have a frequent insect resistance monitoring. The objective of this research is to evaluate combination of bioassays and molecular marker techniques to detect insecticide resistance in stored product beetles. The Coleoptera species used for the tests were Sitophilus oryzae (L.) (Curculionidae), Rhyzopertha dominica (F.) (Bostrichidae) and Oryzaephilus surinamensis (L.) (Silvanidae). For the bioassays it was used the impregnated filter paper technique, applying 1 mL of deltamethrin (K-Obiol 25 CE TM) using four concentrations and five replicates, including a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Coleoptera; Deltamethrin; Insecticide resistance; PCR-RAPD markers; Stored product insects.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262003000300015
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การติดตามความต้านทานต่อสารเคมีป้องกันกำจัดแมลงของเพลี้ยกระโดดสีน้ำตาล ในภาคตะวันออกเฉียงเหนือของไทย Thai Agricultural
Sukanya Arunmit; Wantana Sriratanasak; Jintana Chaiwong; Urassaya Boonpramook.
Brown planthopper (BPH), Nilaparvata lugens (Stål), is a major insect pest of rice in Thailand. Because of their ability to adapt to host plant and environment, the BPH becomes an extremely destructive pest and difficult to control. The purpose of this research is to monitor the insecticide resistance of BPH in North Eastern (NE) Thailand. The BPH populations were collected from the outbreak areas in 9 provinces during 2011 to 2012. The toxicity (LD50) of 10 insecticides was conducted using Topical bioassay method. Results showed that the BPH populations from 7 provinces were resistant to ethiprole and isoprocarb. The Nong Bua Lam Phu population was the widest spectrum of resistance to the tested insecticides, whereas, the BPH population from Si Sa Ket was...
Tipo: Collection Palavras-chave: Rice Nilaparvata lugens; Insecticide resistance; Toxicity level (LD50); North Eastern Thailand ข้าว เพลี้ยกระโดดสีน้ำตาล ความต้านทานต่อสารเคมีป้องกันกำจัดแมลง ระดับความเป็นพิษ (LD50) ภาคตะวันออกเฉียงเหนือ.
Ano: 2014 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5914
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การติดตามความต้านทานต่อสารเคมีป้องกันกำจัดแมลงของเพลี้ยกระโดดสีน้ำตาลในภาคตะวันออกเฉียงเหนือของไทย Thai Agricultural
Sukanya Arunmit; Wantana Sriratanasak; Jintana Chaiwong; Urassaya Boonpramook.
Brown planthopper (BPH), Nilaparvata lugens (Stål), is a major insect pest of rice in Thailand.Because of their ability to adapt to host plant and environment, the BPH becomes an extremely destructive pest and difficult to control. The purpose of this research is to monitor the insecticide resistance of BPH in North Eastern (NE) Thailand. The BPH populations were collected from the outbreak areas in 9provinces during 2011 to 2012. The toxicity (LD50) of 10 insecticides was conducted using Topical bioassay method. The results showed that the BPH populations from 7 provinces were resistant to ethiprole and isoprocarb. The NongBua Lam Phu population was the widest spectrum of resistance to the tested insecticides,whereas, the BPH population from Sisaket was...
Tipo: PhysicalObject Palavras-chave: Rice; BHP; Insecticide resistance; Toxicity level; LD50; North eastern; Thailand; ข้าว; เพลี้ยกระโดดสีน้ำตาล; ความต้านทานต่อสารเคมีป้องกันกำจัดแมลง; ระดับความเป็นพิษ; LD50; ภาคตะวันออกเฉียงเหนือ; ประเทศไทย.
Ano: 2014 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5627
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