Toxicity of non-pyrethroid insecticides against Triatoma infestans (Hemiptera: Reduviidae)

Carvajal, Guillermo; Mougabure‐Cueto, Gastón; Toloza, Ariel Ceferino

doi:10.1590/s0074-02762012000500015

Cited by 38 publications

(33 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Vassena et al (2000) showed that T. infestans from Rio Grande do Sud (Brazil) were resistant to pyrethroids while R. prolixus from Carabobo (Venezuela) were resistant to all evaluated pyrethroids and to the organochlorine dieldrin. In Argentina and Bolivia, the insects from different localities showed cross resistance to all evaluated pyrethroids but were susceptible to possible alternative insecticides as the organophosphorus fenitrothion and malathion, and carbamate bendiocarb (Picollo et al, 2005;Santo-Orihuela et al, 2008;Toloza et al, 2008;Lardeaux et al, 2010;Carvajal et al, 2012;Depickere et al, 2012;Germano et al, 2012Germano et al, , 2013. These results evidenced the presence of toxicokinetic/toxicodynamic process shared by all pyretroids but not by organophosphorus and carbamate insecticides as resistance mechanism.…”

Section: Mechanisms Of Resistancementioning

confidence: 86%

“…Castelli city. The toxicological studies conducted on insects from those localities demonstrated very high resistance levels to deltamethrin, RR 1031 for El Malá and RR 233 for La Esperanza (Carvajal et al, 2012;Germano et al, 2013). In a nearby locality, Pampa del Indio, Gurevitz et al (2012) observed reduced mortality in diagnostic dose assays in eleven of fourteen T. infestans populations, and reported low resistance level (RR=7.2) in a residual population that survived four deltamethrin sprays.…”

Section: Chronology Of Detection and Distribution Of The Resistant Focimentioning

confidence: 99%

See 1 more Smart Citation

Insecticide resistance in vector Chagas disease: Evolution, mechanisms and management

2015

Self Cite

View full text Add to dashboard Cite

Section: Mechanisms Of Resistancementioning

confidence: 86%

Section: Chronology Of Detection and Distribution Of The Resistant Focimentioning

confidence: 99%

Insecticide resistance in vector Chagas disease: Evolution, mechanisms and management

2015

Self Cite

View full text Add to dashboard Cite

“…Fenitrothion and imidacloprid showed high lethal effect on susceptible and resistant T. infestans, but ivermectin, flubendiamide, indoxacarb, amitraz and spinosad did not show effectiveness. Thus, fenitrothion and imidacloprid were considered as alternative compound for chemical control of this vector (Carvajal, Mougabure-Cueto, & Toloza, 2012).…”

Section: Alternative Chemical Control For Pyrethroid-resistant Populamentioning

confidence: 99%

Identifying Current and Missing Knowledge in the Control of Pyrethroid-Resistant Triatoma infestans, Vector of Chagas Disease

Acevedo¹,

Picollo²

2017

GJHS

View full text Add to dashboard Cite

Triatomines are blood-sucking bugs that occur mainly in Latin America. They are vectors of Trypanosoma cruzi, the parasite that causes Chagas disease. Chemical control of Chagas disease´s vectors by using pyrethroid insecticides has been highly successful for the elimination of domestic infestation and consequently the reduction of the vector transmission. However, at the beginning of the 2000s a decrease in the effectiveness of the chemical control of triatomines was detected in several areas from Argentina and Bolivia, particularly in the Gran Chaco eco-region.During the last 15 years, several studies demonstrated the evolution of insecticide resistance in Triatoma infestans and established the presence of different toxicological profiles, the autosomal inherence of resistance, the biological costs of deltamethrin resistance, the expression of deltamethrin resistance thorough the embryonic development, and the main mechanisms of resistance (target-site insensitivity and metabolic detoxification of insecticides).The emergence of pyrethroid resistance coupled with the usual difficulties in sustaining adequate rates of insecticide applications emphasize the need of incorporating other tools for integrated vector and disease control, such as the proposal of the organo-phosphorus insecticide fenitrothion as an alternative chemical strategy for the management of the resistance because it was effective against pyrethroid-resistant populations in laboratory and semi-field trials.New studies on the current situation of presence and spread of resistant populations of triatomines and the acceptance of the use of alternative insecticides are critical requirements in the implementation of strategies for the management of resistance and for the rational design of campaigns oriented to reducing the vector transmission of Chagas' disease.

show abstract

“…However, some studies assessing the susceptibility of T. infestans to insecticides belonging to a different class demonstrated cross-resistance. Carvajal et al (26) assessed the toxicity of different insecticides on deltamethrin susceptible and resistant populations of T. infestans from El Malá. Both populations proved susceptible to fenitrothion and imidacloprid, but were resistant to amitraz, flubendiamide, ivermectin, indoxacarb, and spinosad.…”

Section: History Of Triatominae Resistance To Insecticidesmentioning

confidence: 99%

History of insecticide resistance of Triatominae vectors

Pessoa

Viñas²,

Rosa

et al. 2015

Rev. Soc. Bras. Med. Trop.

View full text Add to dashboard Cite

In the last 15 years, different types of Triatominae resistance to different insecticides have been reported; thus, resistance may be more widespread than known, requiring better characterization and delimitation, which was the aim of this review. This review was structured on a literature search of all articles from 1970 to 2015 in the PubMed database that contained the keywords Insecticide resistance and Triatominae. Out of 295 articles screened by title, 33 texts were selected for detailed analysis. Insecticide resistance of Triatomines is a complex phenomenon that has been primarily reported in Argentina and Bolivia, and is caused by different factors (associated or isolated). Insecticide resistance of Triatominae is a characteristic inherited in an autosomal and semi-dominant manner, and is polygenic, being present in both domestic and sylvatic populations. The toxicological profi le observed in eggs cannot be transposed to different stages of evolution. Different toxicological profi les exist at macro-and microgeographical levels. The insecticide phenotype has both reproductive and developmental costs. Different physiological mechanisms are involved in resistance. Studies of Triatomine resistance to insecticides highlight three defi ciencies in interpreting the obtained results: I) the vast diversity of methodologies, despite the existence of a single guiding protocol; II) the lack of information on the actual impact of resistance ratios in the fi eld; and III) the concept of the susceptibility reference lineage. Research on the biological and behavioral characteristics of each Triatominae species that has evolved resistance is required in relation to the environmental conditions of each region.

show abstract

Toxicity of non-pyrethroid insecticides against Triatoma infestans (Hemiptera: Reduviidae)

Abstract: Triatoma infestans (Klug) is the main vector of Chagas disease, which is a public health concern in most Latin

Cited by 38 publications

References 23 publications

Insecticide resistance in vector Chagas disease: Evolution, mechanisms and management

Insecticide resistance in vector Chagas disease: Evolution, mechanisms and management

Identifying Current and Missing Knowledge in the Control of Pyrethroid-Resistant Triatoma infestans, Vector of Chagas Disease

History of insecticide resistance of Triatominae vectors

Contact Info

Product

Resources

About