Mi interés de investigación se enfoca en el estudio de la etiología, epidemiología y control de enfermedades causadas por hongos (micosis) en especies frutales de importancia como manzanos, perales, vides, kiwis, arándanos, cerezas y nogales entre otros. Las dos líneas principales de investigación son las enfermedades que causan: i) pudriciones de fruta durante pre y poscosecha; y ii) cancrosis y muerte regresiva de brazos. Los hongos de interés son especies de Botrytis, especies miembros de las familias Botryosphaeriaceae y Diaporthaceae y Diatrypaceae entre otros.

2025

Iqbal, S., Mubeen, I., Lolas, M., Moya-Elizondo, E., Gundel, P., Ortega-Farias, S., Campillay-Llanos, W., & Díaz, G. A. 2025. Vulnerability of Walnut Pruning Wounds to Fungal Trunk Pathogens and Seasonal Conidial Dynamics of Botryosphaeriaceae in the Maule Region, Chile. Microorganisms. ISSN: 2076-2607. DOI: 10.3390/microorganisms13102407.

Campillay-Llanos, W., Ortega-Farías, S., Díaz, G.A., and López-Flores, M. M. 2025. Body sizes of species determining the success of biological control in a three-level food chain. Scientific Reports. ISSN: 2045-2322. DOI: 10.1038/s41598-025-16157-4.

Valdez-Tenezaca, A., Lolas, M., Núñez, F.B., Latorre, B.A., Mostert, L., Halleen, F., Ferrada, E., and Díaz, G.A. 2025. Efficacy of Pruning-Wound Protectant Fungicides for the Management of Botryosphaeria Canker and Dieback of Apple Trees in Maule Region, Chile. Plant Disease. ISSN: 0191-2917. DOI: 10.1094/PDIS-11-24-2427-RE.

Nuñez, F.B., Hernández, Y.; Gutiérrez, M. Lolas, M., Moggia, C., Lobos, G.A., and Díaz, G.A. 2025. First Description of Diplodia mutila Causing Botryosphaeria Stem Blight of Highbush Blueberry cv. Brigitta in the Maule Region, Central Chile. Plant Disease. ISSN: 0191-2917. DOI: 10.1094/PDIS-02-25-0338-PDN.

Valdez-Tenezaca, A., Gutiérrez, M. E., Guerra, M., Castro, J. F., Covarrubias, S. A., & Díaz, G. A. 2025. Methods to Stimulate Sporulation and Freeze-Drying Strategies for the Conservation of Diplodia mutila, Diplodia seriata, Lasiodiplodia theobromae, and Neofusicoccum arbuti Isolated from Apple Trees with Canker and Dieback Symptoms. Journal of Fungi. ISSN: 2309-608X DOI: 10.3390/jof11090640.

Valdez-Tenezaca, A., Latorre, B.A., and Díaz, G.A. 2025. Susceptibility of Pruning Wounds of Apple Trees to Diplodia mutila, D. seriata, Lasiodiplodia theobromae, and Neofusicoccum arbuti Infections and Conidial Release of Botryosphaeriaceae spp. in the Maule Region, Chile. Plant Disease. ISSN: 0191-2917. DOI: 10.1094/PDIS-07-24-1498-RE.

Campillay-Llanos, W., Ortega-Farias, S., Díaz, G. A., Ahumada-Orellana, Luis., López-Olivari, R. 2025. Phenological analysis through biomathematical models of three varieties of pear (Pyrus communis L.) in mediterranean climate conditions. Ecological Modelling. ISSN: 0304-3800. DOI: 10.1016/j.ecolmodel.2025.111105.

Campillay-Llanos, W., Ortega-Farías, S., González-Colville, P., Díaz, G. A., López-Flores, M. M., & López-Olivari, R. 2025. Modeling the Effects of Extreme Temperatures on the Infection Rate of Botrytis cinerea Using Historical Climate Data (1951–2023) of Central Chile. Agronomy. ISSN: 2073-4395. DOI: 10.3390/agronomy15030608. IF:3.3

Hernández, Y.; Lolas, M.; Elfar, K.; Eskalen, A.; Gainza-Cortés, F.; Díaz, G.A. 2025. Host Jumps and Pathogenicity of Botryosphaeriaceae Species on Grapevines (Vitis vinifera) in Chile. Microorganisms. ISSN: 2076-2607. DOI: 10.3390/microorganisms13020331.

2024

Iqbal, S., Díaz, G.A., and Ferrada, E.E. 2024. First report of Neofusicoccum nonquaesitum causing branch dieback of English walnut (Juglans regia) in the Maule region, Chile. Plant Disease. ISSN: 0191-2917. DOI: 10.1094/PDIS-06-24-1225-PDN.

Grinbergs, D., Chilian, J., Díaz, G.A., Isla, M., Alfaro-Quezada, F., and Carrasco-Fernández. 2024. First report of silverleaf caused by Chondrostereum purpureum in hazelnut (Corylus avellana) in Chile. Plant Disease. ISSN: 0191-2917. DOI: 10.1094/PDIS-05-24-1149-PDN.

Lolas, M., Latorre, B.A., Ferrada, Grinbergs, D., Chilian, J., Ortega-Farias, S., Campillay-Llanos, W., and Díaz, G.A. 2024. Occurrence of Neofusicoccum parvum Causing Canker and Branch Dieback of European Hazelnut in Maule Region, Chile. Plant Disease. ISSN: 0191-2917. DOI: 10.1094/PDIS-08-23-1539-PDN.

Campillay-Llanos, W., López-Flores, M. M., Ortega-Farias, S., Díaz, G.A. 2024. Theoretical approach to community structure: body size, density and energy. Revista Brasileira de Ensino de Física. ISSN: 1806-9126. DOI: 10.1590/ISSN:. 1806-9126.-RBEF-ISSN: 2023-0364.

2023

Cancino, S., Lolas, M., Galdós, L., Hernández, Y., Ferrada, F., Riveros, P., Blanco-Ulate, B., and Díaz, G.A. 2023. Occurrence of Alternaria alternata and A. tenuissima causing black rot in cherry fruits (Prunus avium) in Central Chile. Plant Disease. ISSN: 0191-2917. DOI: 10.1094/PDIS-07-23-1435-PDN.

Rojas, C., Díaz, G. A., Montenegro, O., and Ferrada, E. E. 2023. Occurrence of leaf rust disease in Oxalis triangularis caused by Puccinia oxalidis in Valdivia, Chile. Plant Disease. ISSN: 0191-2917. DOI: 10.1094/PDIS-07-22-1538-PDN.

Díaz, G.A., Reveglia, P., Tomoiaga, L.L., and Chedea, V.S. 2023. Editorial: Fungal pathogens causing the grapevine trunk diseases- biology and identification. Frontiers in Fungal Biology. ISSN: 2673-6128. DOI: 10.3389/ffunb.2023.1186166.

Iqbal, S., Hernández, Y., Lolas, M., Elfar, K., Eskalen, A., Latorre, B., and Díaz, G.A. 2023. Dothiorella sarmentorum Causing Branch Dieback of English Walnut in Maule Region, Chile. Plant Disease. ISSN: 0191-2917. DOI: 10.1094/PDIS-03-22-0636-PDN.

2022

Díaz, G. A. and Latorre, B. A. 2022. Duration of the susceptibility of pruning wounds of different ages to infections by Phaeomoniella chlamydospora on grapevine cv. Cabernet Sauvignon in Central Chile. Frontiers in Fungal Biology. ISSN: 2673-6128. DOI: 10.3389/ffunb.2022.1026516.

Gutiérrez, M., Pinheiro, C. Duarte, J., Sumonte, C., Ferrada, E. E, Elfar, K. Eskalen A., Lolas, M., Galdós, L. and Díaz, G. A. 2022. Severe Outbreak of Dry Core Rot in Apple Fruits cv. Fuji Caused by Kalmusia variispora During Pre-harvest in Maule Region, Chile. Plant Disease. ISSN: 0191-2917. DOI: 10.1094/PDIS-12-21-2776-PDN.

Iqbal, S., Wang, X., Mubeen, I., Kamran, M., Kanwal, I., Díaz, G.A., Abbas, A., Parveen, A., Fahad, S., and Nauman. 2022. Phytohormones Trigger Drought Tolerance in Crop Plants: Outlook and Future Perspectives. Frontiers in Plant Science 1664-462X DOI: 10.3389/fpls.2021.799318.

Díaz, G.A., Valdes, A.V., Halleen F., Ferrada, E.E., Lolas, M., and Latorre, B.A. 2022. Characterization and pathogenicity of Diplodia, Lasiodiplodia and Neofusicoccum species causing Botryosphaeria canker and dieback of apple trees in central Chile. Plant Disease. ISSN: 0191-2917. DOI: 10.1094/PDIS-06-21-1291-RE.

2021

Díaz, G.A., Cabeza, R., Amigo, R., Llancamil, E., Montenegro, O., González, P., Váldes, A.V., Lolas, M., and Ferrada. E.E. 2021. Severe outbreak of Fusarium wilt on common beans (Phaseolus vulgaris) caused by Fusarium oxysporum in the Maule Region, central Chile. Plant Disease. ISSN: 0191-2917. DOI: 10.1094/PDIS-12-20-2758-PDN.

Riquelme, D., Aravena, Z., Valdes, H., Lolas, M., Díaz, G.A., and Zoffoli, J.P 2021. Characterization of Botrytis cinerea and B. prunorum from Healthy Floral Structures and Decayed ‘Hayward’ Kiwifruit During Post-Harvest Storage. Plant Disease. ISSN: 0191-2917. DOI: 10.1094/PDIS-04-20-0878-RE.

Díaz, G.A., Zoffoli, J.P., Ferrada, E.E., and Lolas, M. 2021. Identification and pathogenicity of Diplodia, Neofusicoccum, Cadophora and Diaporthe species associated with cordon dieback in kiwifruit cv. Hayward in central Chile. Plant Disease. ISSN: 0191-2917. DOI: 10.1094/PDIS-05-20-0988-RE.

Silva-Valderrama, I, Toapanta, D, Miccono, MA, Lolas, M, Díaz, G.A., Cantu, D and Castro A. 2021. Biocontrol Potential of Grapevine Endophytic and Rhizospheric Fungi Against Trunk Pathogens. Frontiers in Microbiology. ISSN: 1664-302X DOI: 10.3389/fmicb.2020.614620.

Ferrada, E.E., Biche, J., Lolas, M., Lobos, G., and Díaz, G.A. 2021. Identification and characterization of isolates of Botrytis obtained from blossom blight and fruits with calyx-end rot in apples in Chile. Acta Horticulturae. ISSN: 0567-7572. DOI: 10.17660/ActaHortic.2021.1325.14.

Lolas, M., Cáceres, M., Reyes, J.A., and Díaz, G.A. 2021. Bull’s eye rot development in storage is related to the timing of apple fruit infection by Neofabraea vagabunda in the orchard in Chile. Acta Horticulturae. ISSN: 0567-7572. DOI: 10.17660/ActaHortic.2021.1325.12.

Eutypa lata: is it a real menace to the Chilean grapevine industry and other fruit crops?. Fondecyt. 2023-2027. Co-investigador. Código Proyecto Fondecyt no. 1230662