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| Vudriko, Patric; Okwee-Acai, James; Tayebwa, Dickson Stuart; Byaruhanga, Joseph; Kakooza, Steven; Wampande, Edward; Omara, Robert; Muhindo, Jeanne Bukeka; Tweyongyere, Robert; Owiny, David Okello; Hatta, Takeshi; Tsuji, Naotoshi; Umemiya-Shirafuji, Rika; Xuan, Xuenan; Kanameda, Masaharu; Fujisaki, Kozo; Suzuki, Hiroshi. |
| Background: Acaricide failure has been on the rise in the western and central cattle corridor of Uganda. In this study, we identified the tick species associated with acaricide failure and determined their susceptibility to various acaricide molecules used for tick control in Uganda. Methods: In this cross sectional study, tick samples were collected and identified to species level from 54 purposively selected farms (from 17 districts) that mostly had a history of acaricide failure. Larval packet test was used to screen 31 tick populations from 30 farms for susceptibility at discriminating dose (DD) and 2 x DD of five panels of commercial acaricide molecules belonging to the following classes; amidine, synthetic pyrethroid (SP), organophosphate (OP) and... |
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Palavras-chave: Ticks; Rhipicephalus appendiculatus; Rhipicephalus (Boophilus) decoloratus; Acaricide; Resistance; Amitraz; Synthetic pyrethroids; Organophosphates. |
| Ano: 2016 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4437 |
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| Chernaki-Leffer,Andreia Mauruto; Sosa-Gómez,Daniel Ricardo; Almeida,Lúcia M.; Lopes,Ivani de Oliveira Negrão. |
| Susceptibility of Alphitobius diaperinus (Panzer) (Coleoptera, Tenebrionidae) to cypermethrin, dichlorvos and triflumuron in southern Brazil. The lesser mealworm, Alphitobius diaperinus (Panzer), is an important insect pest in poultry houses in Brazil. Susceptibility of the lesser mealworm collected from eight poultry houses in Paraná state, southern Brazil, was evaluated for cypermethrin, dichlorvos and triflumuron. Adult A. diaperinus were tested in bioassays with cypermethrin and dichlorvos. Larvae were fed rabbit feed wetted with a triflumuron-water solution. Concentration-mortality regressions were estimated using Probit analysis and resistance ratios were calculated based on the susceptible population. Among the field populations evaluated,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insect growth regulator; Lesser mealworm; Poultry house; Pyrethroid; Organophosphates. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262011000100020 |
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| Rodrigues,Edson de Lara; Fanta,Edith. |
| Among the new substances that were synthesised by the chemical industiy during the last decades, with the aim to improve human prosperity, some cause negative effects on non target organisms like fish. Among the pesticides, the organophosphates (OP) are widely used in cattle management, agriculture and aquaculture activities. Brachydanio rerio Hamilton-Buchman, 1822 is used world-wide in fish-tests for the establishment of the lethal levels of pesticides. Nevertheless, these fish show morphological changes in their hepatocytes when exposed experimentally for 24 hours to the sublethal dose of 0.025 µl/l of the OP Dimethoate 500, in acute tests. Right hours after exposure, a high density of cells with cytoplasmic granulation is seen as well as focal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dimethoate; Histopathology; Fish; Liver; Organophosphates; Sublethal contamination. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000200014 |
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