Adult diaphorina citri biocontrol using hirsutella citriformis strains and gum formulations

Cantú Bernal, Servando H. y Gomez Flores, Ricardo y Flores Villarreal, Rosa A. y Orozco Flores, Alonso A. y Romo Sáenz, César I. y Montesinos Matías, Roberto y Mellín Rosas, Marco A. y Sánchez González, Jorge A. y Pérez González, Orquídea y Tamez Guerra, Patricia (2023) Adult diaphorina citri biocontrol using hirsutella citriformis strains and gum formulations. Plants, 12 (18). pp. 1-12. ISSN 2223-7747

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URL o página oficial: http://doi.org/10.3390/plants12183184

Resumen

Hirsutella citriformis Speare is the only entomopathogenic fungus that has been applied to control the hemipteran Diaphorina citri Kuwayama. However, the use of available commercial products under field conditions is limited due to conidia’s shelf life and short environmental persistence. We have previously reported the citrus psyllid D. citri adults’ biocontrol potential using H. citriformis strains. The aim of the present study was to evaluate different formulations based on H. citriformis (OP-Hir-3, OP-Hir-10, and OP-Hir-12 strains) conidia and gums as additives to improve D. citri adults’ biocontrol, under laboratory, greenhouse, and field conditions, using Hirsutella gums as conidia stabilizers to improve their viability under environmental drought conditions and as insecticide. Laboratory bioassay results showed that the highest (p < 0.05) D. citri mortality was achieved using FOP-Hir-10GH (63.5%), followed by the Hirsutella gum control (42.2%). Under greenhouse conditions, adults’ mortality reached up to 84.6% with FOP-Hir-12 and 49.0% with Hirsutella gum. In addition, we applied H. citriformis formulations under field conditions in a commercial citrus grove located in Tecomán, Colima, México, at 21.5 °C and 73.3% relative humidity (RH) in March and 25.7 °C and 72.5% RH in October 2022 and observed 67.3% and 94.0% mortality of D. citri adults, respectively. Hirsutella gum alone showed significant insecticidal activity against D. citri adults. In conclusion, this study demonstrated that Hirsutella gum functioned as additive to H. citriformis conidia formulations, improving D. citri adults’ mortality and showing potential for this pest biocontrol in citrus orchards

Tipo de elemento:

Article

Palabras claves no controlados:

Asian citrus psyllid, Improved bioinsecticide, Citrus orchards

Materias:

Q Ciencia > QL Zoología

Divisiones:

Ciencias Biológicas

Usuario depositante:

Editor Repositorio

Creadores:

Creador	Email	ORCID
Cantú Bernal, Servando H.	NO ESPECIFICADO	NO ESPECIFICADO
Gomez Flores, Ricardo	rgomez60@hotmail.com	orcid.org/0000-0002-9518-4433
Flores Villarreal, Rosa A.	NO ESPECIFICADO	NO ESPECIFICADO
Orozco Flores, Alonso A.	NO ESPECIFICADO	NO ESPECIFICADO
Romo Sáenz, César I.	NO ESPECIFICADO	NO ESPECIFICADO
Montesinos Matías, Roberto	NO ESPECIFICADO	NO ESPECIFICADO
Mellín Rosas, Marco A.	NO ESPECIFICADO	NO ESPECIFICADO
Sánchez González, Jorge A.	NO ESPECIFICADO	NO ESPECIFICADO
Pérez González, Orquídea	NO ESPECIFICADO	NO ESPECIFICADO
Tamez Guerra, Patricia	patamez@hotmail.com	orcid.org/0000-0002-4831-2340