Thinking green: Insecticidal effect of biorational solutions against Triatoma pallidipennis Stal (Hemiptera: Triatominae)
Por:
Vargas-Abasolo R., Rivera-Duarte J.D., Almaraz-Valle V.M., Mejia-Mandujano M., Aguilar-Marcelino L., Córdoba-Aguilar A.
Publicada:
1 ene 2024
Ahead of Print:
1 feb 2024
Resumen:
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. © 2024 Elsevier B.V.
Filiaciones:
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 J.D.:
Departamento de Ecología y Recursos Naturales, Escuela de Biología, Facultad de Ciencias, Universidad Nacional Autónoma de Honduras, Honduras
Almaraz-Valle V.M.:
Programa de Entomología y Acarología, Colegio de Postgraduados Campus Montecillo, Km. 36.5, Montecillo, Estado de México, Texcoco, 56230, Mexico
Mejia-Mandujano M.:
Programa de Entomología y Acarología, Colegio de Postgraduados Campus Montecillo, Km. 36.5, Montecillo, Estado de México, Texcoco, 56230, Mexico
Aguilar-Marcelino L.:
Centro Nacional de Investigación Disciplinaria en Salud Animal e Inocuidad, INIFAP, Carretera Cuernavaca-Cuautla 8534, Col. Progreso, Morelos, Jiutepec, 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
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