A new tactic for Triatoma infestans control: fabrics impregnated with beta-cypermethrin

Wood, E.; Licastro, Susana Mónica; Casabé, Norma; Picollo, María Inés; Alzogaray, Raúl A.; Zerba, Eduardo

doi:10.1590/s1020-49891999000600001

Cited by 11 publications

(9 citation statements)

References 10 publications

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“…For insecticide-impregnated curtains, we used wool fabric, which has been reported as highly absorbent and able to maintain the insecticide residual activity for the longest period of time. 28 Curtains of the appropriate size of each window were custom-made and impregnated with 600 mL/m 2 of a solution containing K-O Tab 1-2-3 tablets (Bayer Environmental Science) to achieve a deltamethrin dose of 30 mg/m 2 . This formulation provides a wash-resistant residual activity for at least 3 years.…”

Section: Methodsmentioning

confidence: 99%

Comparative Field Trial of Alternative Vector Control Strategies for Non-Domiciliated Triatoma dimidiata

Ferral

Chavez-Nuñez²,

Euan-Garcia³

et al. 2010

The American Society of Tropical Medicine and Hygiene

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Abstract. Chagas disease is a major vector-borne disease, and regional initiatives based on insecticide spraying have successfully controlled domiciliated vectors in many regions. Non-domiciliated vectors remain responsible for a significant transmission risk, and their control is a challenge. We performed a proof-of-concept field trial to test alternative strategies in rural Yucatan, Mexico. Follow-up of house infestation for two seasons following the interventions confirmed that insecticide spraying should be performed annually for the effective control of Triatoma dimidiata ; however, it also confirmed that insect screens or long-lasting impregnated curtains may represent good alternative strategies for the sustained control of these vectors. Ecosystemic peridomicile management would be an excellent complementary strategy to improve the cost-effectiveness of interventions. Because these strategies would also be effective against other vector-borne diseases, such as malaria or dengue, they could be integrated within a multi-disease control program.

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Section: Methodsmentioning

confidence: 99%

Comparative Field Trial of Alternative Vector Control Strategies for Non-Domiciliated Triatoma dimidiata

Ferral

Chavez-Nuñez²,

Euan-Garcia³

et al. 2010

The American Society of Tropical Medicine and Hygiene

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“…An entomologic and epidemiologic system for surveillance of Chagas disease in Amazonia has been suggested (68,69). Alternatively, the enormous task of controlling emerging Chagas disease in the Amazon Basin should rely initially on an information, education, and communication program, which encourages control measures by the householder (e.g., use of screens, bed nets, insecticide-treated fabrics, and vegetation management) (69)(70)(71)(72)(73). Such a program for prevention of contact with triatomines should be conducted directly in communities, elementary schools, and churches and social clubs, reinforced by social marketing and mass media communications.…”

Section: Researchmentioning

confidence: 99%

Emerging Chagas Disease: Trophic Network and Cycle of Transmission ofTrypanosoma cruzifrom Palm Trees in the Amazon

Teixeira

Monteiro

Rebêlo

et al. 2001

Emerg. Infect. Dis.

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“…Similar effects were reported in T. infestans nymphs exposed to dogs wearing deltamethrin‐treated collars (Reithinger et al ., ). This result may be attributable to a repellent effect of the cypermethrin (Wood et al ., ). Although the anti‐feeding effect produced by pyrethroids has not been demonstrated in T. infestans , exposure to cypermethrin has been shown to decrease food intake in other insects, such as larvae of Pieris brassicae (Lepidoptera: Pieridae) (Tan, ) and the beetle Phaedon cochleariae (Coleoptera: Chrysomelidae) (Hajjar & Ford, ).…”

Section: Discussionmentioning

confidence: 97%

Control of experimental Triatoma infestans populations: effect of pour‐on cypermethrin applied to chickens under natural conditions in the Argentinean Chaco region

Amelotti

Catalá²,

Gorla³

2013

Medical Vet Entomology

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Among peridomestic structures, chicken coops are sites of major importance for the domestic ecology of Triatoma infestans (Hemiptera: Reduviidae). The aim of this study was to evaluate in an experimental context the effects of a cypermethrin pour-on formulation applied to chickens on blood intake, moulting and mortality in T. infestans, under the natural climatic conditions of a region endemic for Chagas' disease. Experimental chicken huts were made of bricks and covered with plastic mosquito nets. Ninety fourth-instar nymphs were maintained in each hut. The study used a completely random design in which chickens in the experimental group were treated with a cypermethrin pour-on formulation. Five replicates (= huts) of the experimental and control groups were conducted. The number of live T. infestans, blood intake and moults to fifth-instar stage were recorded at 1, 5, 20, 35 and 45 days after the application of cypermethrin. Cumulative mortality was higher in nymphs exposed to treated chickens (> 71%) than in control nymphs (< 50%) (P < 0.01). Blood intake and moulting rate were lower in nymphs fed on treated chickens than in control nymphs (P < 0.05). Pour-on cypermethrin was able to cause significant mortality, although it did not eliminate the experimental population of T. infestans.

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A new tactic for Triatoma infestans control: fabrics impregnated with beta-cypermethrin

Abstract: Triatoma infestans is the most important vector of Chagas

Cited by 11 publications

References 10 publications

Comparative Field Trial of Alternative Vector Control Strategies for Non-Domiciliated Triatoma dimidiata

Comparative Field Trial of Alternative Vector Control Strategies for Non-Domiciliated Triatoma dimidiata

Emerging Chagas Disease: Trophic Network and Cycle of Transmission ofTrypanosoma cruzifrom Palm Trees in the Amazon

Control of experimental Triatoma infestans populations: effect of pour‐on cypermethrin applied to chickens under natural conditions in the Argentinean Chaco region

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