Thinking green: Insecticidal effect of biorational solutions against Triatoma pallidipennis Stal (Hemiptera: Triatominae).

Autor: Vargas-Abasolo R; Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán, Ciudad de México 04510, Mexico., Rivera-Duarte JD; Departamento de Ecología y Recursos Naturales, Escuela de Biología, Facultad de Ciencias, Universidad Nacional Autónoma de Honduras, Honduras., Almaraz-Valle VM; Programa de Entomología y Acarología, Colegio de Postgraduados Campus Montecillo, Km. 36.5, Montecillo, Texcoco, Estado de México 56230, Mexico., Mejia-Mandujano M; Programa de Entomología y Acarología, Colegio de Postgraduados Campus Montecillo, Km. 36.5, Montecillo, Texcoco, Estado de México 56230, Mexico., Aguilar-Marcelino L; Centro Nacional de Investigación Disciplinaria en Salud Animal e Inocuidad, INIFAP, Carretera Cuernavaca-Cuautla 8534, Col. Progreso, Jiutepec, Morelos 62550, Mexico., Córdoba-Aguilar A; Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán, Ciudad de México 04510, Mexico. Electronic address: acordoba@iecologia.unam.mx.
Jazyk: angličtina
Zdroj: Acta tropica [Acta Trop] 2024 Apr; Vol. 252, pp. 107152. Date of Electronic Publication: 2024 Feb 19.
DOI: 10.1016/j.actatropica.2024.107152
Abstrakt: The control of triatomine vectors depends almost exclusively on conventional insecticides. These compounds can, nevertheless, cause negative effects on environmental and human health as well as induce resistance in triatomines. Therefore, we need to look for more sustainable alternatives. Triatoma pallidipennis is one of the main chagasic vectors in Mexico. We evaluated the insecticidal effectiveness of two oils (neem and cinnamon), and two desiccants (potassium salts of fatty acids and diatomaceous earth), on 3rd instar nymphs of T. pallidipennis. The laboratory test involved direct exposure of the treatments to the insects. We found that diatomaceous earths caused 80 % mortality of nymphs after 30 days. Meanwhile, the cumulative mortality for the other treatments did not exceed 50 %. When applied to inert surfaces, the powder formulation of diatomaceous earth demonstrated greater effectiveness than the aqueous suspension. Thus, diatomaceous earth could be a promising alternative for an environmentally friendly control of triatomines.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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