|
|
|
| Registros recuperados: 22 | |
|
| |
|
| |
|
| |
|
|
| 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 |
| |
|
| |
|
|
| 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 & 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 |
| |
|
| |
|
|
| 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 |
| |
|
| |
|
| |
|
|
| 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 |
| |
|
| |
|
|
| 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 |
| |
|
| |
|
| |
|
| |
|
|
| Sukanya Arunmit; Wantana Sriratanasa; Jintana Chaiwong. |
| The brown planthopper (BPH), Nilaparvata lugens (Stål), is one of the most serious insect pest of irrigated rice in the central and lower areas of Northern Thailand. In upper North of Thailand, the first and serious outbreak was found during year 2011 and 2012. The misused insecticide over a period of time with extensive and intensive application is causing BPH outbreak. Therefore, the goal of this research was to monitor the insecticide resistance of BPH in the Northern, Thailand. BPH were collected from 12 outbreak fields of the Northern region namely: Chiang Rai, Chiang Mai, Mae Hong Son, Nan, Phrae, Tak, Phetchabun, Kamphaeng Phet, Phitsanulok, Phichit, Nakhon Sawan and Uthai Thani between the periods of 2010 to 2012. The toxicological tests (LD50) of... |
| Tipo: PhysicalObject |
Palavras-chave: Rice; Brown planthopper (BPH); Insecticide resistance; Toxicology test (LD50); Outbreak area; Northern region; ข้าว; เพลี้ยกระโดดสีน้ำตาล; ความต้านทานต่อสารเคมีป้องกันกำจัดแมลง; ค่าความเป็นพิษ; พื้นที่ระบาด; ภาคเหนือ. |
| Ano: 2013 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5605 |
| |
|
|
| Sukanya Arunmit; Wantana Sriratanasak; Jintana Chaiwong. |
| The brown planthopper (BPH), Nilaparvata lugens (Stål), is one of the most serious insect pest of irrigated rice in the central and lower areas of Northern Thailand. In upper North of Thailand, the first and serious outbreak was found during year 2011 and 2012. The misused insecticide over a period of time with extensive and intensive application is causing BPH outbreak. Therefore, the goal of this research was to monitor the insecticide resistance of BPH in the Northern, Thailand. BPH were collected from 12 outbreak fields of the Northern region namely: Chiang Rai, Chiang Mai, Mae Hong Son, Nan, Phrae, Tak, Phetchabun, Kamphaeng Phet, Phitsanulok, Phichit, Nakhon Sawan and Uthai Thani between the periods of 2010 to 2012. The toxicological tests (LD50) of... |
| Tipo: Collection |
Palavras-chave: BPH; Brown planthopper; Insecticide resistance; Toxicology test; Outbreak area; Northern; Rice; ข้าว; เพลี้ยกระโดดสีน้ำตาล; ความต้านทานต่อสารเคมีป้องกันกำจัดแมลง; ค่าความเป็นพิษ; พื้นที่ระบาด; ภาคเหนือ. |
| Ano: 2013 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5531 |
| |
|
|
| 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 |
| |
|
| |
| Registros recuperados: 22 | |
|
|
|
