The Effects of Cypermethrin Pour-On and Piperonyl Butoxide on Triatoma infestans Under Laboratory Conditions

2010 ◽  
Vol 47 (6) ◽  
pp. 1135-1140 ◽  
Author(s):  
Ivana Amelotti ◽  
Silvia S. Catalá ◽  
David E. Gorla
Keyword(s):  
Piperonyl Butoxide ◽  
Triatoma Infestans ◽  
Laboratory Conditions

scholarly journals Effect of selected pesticides on the vitality and virulence of the entomopathogenicnematode Steinernema feltiae (Nematoda: Steinernematidae)

2010 ◽  
Vol 46 (No. 2) ◽  
pp. 83-88 ◽  
Author(s):  
Š. Radová
Keyword(s):  
Entomopathogenic Nematode ◽  
Tenebrio Molitor ◽  
Piperonyl Butoxide ◽  
Steinernema Feltiae ◽  
Laboratory Conditions

The survival and infectivity of infective juveniles of the entomopathogenic nematode Steinernema feltiae (Rhabditida: Steinernematidae) were determined after being exposed to 8 insecticides (a.i. kinoprene, lufenuron, methomyl, metoxyfenozide, oxamyl, piperonyl-butoxide, pyriproxyfen, tebufenozide), 7 acaricides (a.i. azocyclotin, clofentezin, diafenthiuron, etoxazole, fenbutatinoxide, fenpyroximate, tebufenpyrad) and 4 fungicides (a.i. captan, fenhexamid, kresoxim-methyl, nuarimol) under laboratory conditions. S. feltiae was tolerant to all tested insecticides and fungicides, mortality during 72 hours varied from 2.26% to 18.68 % and from 7.04% to 8.86%, respectively. Acaricides with a.i. fenpyroximate and tebufenpyrad considerably influenced the S. feltiae ability to infect larvae of Tenebrio molitor. Tebufenpyrad caused 95% and fenpyroximate 85% reduction in S. feltiae virulence. These results suggest that S. feltiae can be applied in combination with all tested pesticides except the acaricides with a.i. tebufenpyrad and fenpyroximate.

scholarly journals Attraction of Triatoma infestans (Klug) to adhesive yeast-baited trap under laboratory conditions

2020 ◽  
Vol 40 (1) ◽  
pp. 209-215 ◽  
Author(s):  
Miriam Cardozo ◽  
Federico Gastón Fiad ◽  
Liliana Beatriz Crocco ◽  
David Eladio Gorla
Keyword(s):  
Triatoma Infestans ◽  
Laboratory Conditions

scholarly journals Excito-repellency effect of deltamethrin on triatomines under laboratory conditions

2000 ◽  
Vol 33 (3) ◽  
pp. 247-252 ◽  
Author(s):  
Liléia Diotaiuti ◽  
Claysson Marques Penido ◽  
Holbiano Saraiva de Araújo ◽  
Christopher John Schofield ◽  
Cláudio Teixeira Pinto
Keyword(s):  
Triatoma Infestans ◽  
Low Doses ◽  
Additional Advantage ◽  
Panstrongylus Megistus ◽  
Laboratory Conditions ◽  
Triatoma Sordida ◽  
Triatomine Species ◽  
Insect Mortality ◽  
The Moment

This work demonstrates that deltamethrin in low doses produces an excito-repellency effect on triatomines, as already observed for mosquitoes. A wooden box covered with a cloth impregnated with deltamethrin at doses of 2.5 and 5mg ai/m² was utilized for the experiment. The triatomine species studied were Triatoma infestans, Panstrongylus megistus, Rhodnius neglectus and Triatoma sordida. Adults were released in one of the sides of the box and their position was noted in subsequent periods. The observations were realized on the day the cloth was impregnated and subsequently repeated at 30 and 60 days for T. sordida; on day 120, the remaining species were included. Insect mortality and attempts at flight from the box were also observed. Excito-repellency was evident for all species and doses up to day 120. The only species that attempted to fly was P. megistus. The excito-repellency effect may be considered as an additional advantage to the insecticide power, as it should be able to prevent the installation of new colonies by females that fly into the homes, and at the moment of the spraying, it should promote the flushing out of triatomines from the wall crevices and from other shelters.

scholarly journals Comparison of the blood meal size among Triatoma infestans, T. guasayana and T. sordida (Hemiptera: Reduviidae) of Argentina under laboratory conditions

1996 ◽  
Vol 91 (2) ◽  
pp. 241-242 ◽  
Author(s):  
Silvia Pietrokovsky ◽  
Victoria Bottazzi ◽  
Nicolás Schweigmann ◽  
Ana Haedo ◽  
Cristina Wisnivesky-Colli
Keyword(s):  
Blood Meal ◽  
Meal Size ◽  
Triatoma Infestans ◽  
Laboratory Conditions ◽  
Blood Meal Size

scholarly journals Comparison of feeding and defecation patterns between fifth-instar nymphs of Triatoma patagonica (Del Ponte, 1929) and Triatoma infestans (Klug, 1934) under laboratory conditions

2008 ◽  
Vol 41 (4) ◽  
pp. 330-333 ◽  
Author(s):  
Claudia Susana Rodríguez ◽  
Silvia Alejandra Carrizo ◽  
Liliana Beatriz Crocco
Keyword(s):  
Chagas Disease ◽  
Vector Competence ◽  
Triatoma Infestans ◽  
Feeding Pattern ◽  
Human Environment ◽  
Laboratory Conditions ◽  
Ad Libitum

Among the vectors of Chagas disease, Triatoma patagonica is a species in the process of adaptation to the human environment. However, its vector competence is not well known. This study had the aim of evaluating and comparing feeding and defecation patterns among fifth-instar nymphs of Triatoma patagonica and Triatoma infestans that were fed ad libitum. The results showed that nymphs of Triatoma patagonica had a feeding pattern similar to that of Triatoma infestans. Sixty nine percent and 58% of nymphs of Triatoma patagonica and Triatoma infestans, respectively, produced their first defecation within five minutes after being fed. Triatoma patagonica defecated during feeding, with an average time until first defecation that was shorter than that of Triatoma infestans (3.4 and 6.2 min, respectively). The nymphs of Triatoma patagonica were capable of defecating during or immediately after feeding.

scholarly journals Inheritance and heritability of deltamethrin resistance under laboratory conditions of Triatoma infestans from Bolivia

2015 ◽  
Vol 8 (1) ◽  
Author(s):  
Marinely Bustamante Gomez ◽  
Grasielle D’Avila Caldas Pessoa ◽  
Aline Cristine Luiz Rosa ◽  
Jorge Espinoza Echeverria ◽  
Liléia Gonçalves Diotaiuti
Keyword(s):  
Triatoma Infestans ◽  
Laboratory Conditions ◽  
Deltamethrin Resistance

scholarly journals Attraction of Triatoma infestans (Klug) to adhesive yeast-baited trap under laboratory conditions

2019 ◽  
Author(s):  
Miriam Cardozo ◽  
Federico G. Fiad ◽  
Liliana B. Crocco ◽  
David E. Gorla
Keyword(s):  
Linear Models ◽  
Life Stage ◽  
Triatoma Infestans ◽  
Age Classes ◽  
Laboratory Conditions ◽  
Orientation Response ◽  
Low Sensitivity ◽  
And Control ◽  
Center Area ◽  
House Infestation

AbstractExisting methods to detect domestic triatomines have low sensitivity. As early house infestation detection is epidemiologically important, the exploration of better methods is required. Hence, we measured the attractiveness of a yeast-baited trap to adults and nymphs of Triatoma infestans, under laboratory conditions.The assays were conducted in an experimental arena, with an experimental and a control traps placed at opposite sides and one refuge in the center area. Insects where released and the number of triatomines in the yeast and control traps were counted, after 3, 6 and 24 hours of the beginning of the experiment. We use generalized linear models within a multimodel inference approach to model the number of insects in the trap, using insect age classes, time after assay initiation and date of the experiment as predictors.Our results show that the attraction to CO2 depends upon the life stage of the insects. During the 24 hours of experiment a constant number of adults were attracted to the yeast trap, while nymphs show attraction only up to the first three hours after the initiation of CO2 liberation. Undoubtedly, the orientation response to chemical cues deserves further studies to be fully understood.

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