2026-04-14T02:43:11Zhttps://recercat.cat/oai/requestoai:recercat.cat:20.500.12327/21122025-10-22T11:01:17Zcom_2072_4428com_2072_4427col_2072_487898
RECERCAT
author
Casals, Carla
author
Segarra, Joan
author
Teixidó, Neus
author
De Cal, Antonieta
author
Usall, Josep
other
Producció Vegetal
group
Postcollita
2025-10-22T11:01:17Z
2025-10-22T11:01:17Z
2023-01-14
Casals, Carla, Joan Segarra, Rosario Torres, Neus Teixidó, Antonieta De Cal, and Josep Usall. 2023. "Validation Of A Warning System To Control Brown Rot In Peach And Nectarine". Agronomy 13 (1): 254. doi:10.3390/agronomy13010254
2073-4395
http://hdl.handle.net/20.500.12327/2112
https://doi.org/10.3390/agronomy13010254
Monilinia spp. is the main pathogen that affects stone fruit, causing significant production
losses, especially in seasons with favorable climatic conditions for disease development. Currently,
the standard practices for controlling this disease are by means of spray programs of synthetic
fungicides. Fungicide applications using treatment schedules imply an increase in the number
of applications; however, the applications are justified considering the real risk of Monilinia spp.
infection. Consequently, fruit surface contains a higher number and concentration of residues, but not
better control of the disease. From previous studies, the epidemiology of Monilinia spp. was deeply
studied in one of the main stone fruit regions of Europe, the ‘Valle del Ebro’, and an epidemiological
model was developed to describe the brown rot epidemic pattern in this area. After that, a warning
system for fungicide applications in the field was elaborated that included the main factors to be
considered as fruit susceptibility, the presence of inoculum in the field, and climatological factors
(temperature, leaf wetness, rainfall, or their interaction). In the present study, we present data of
the warning system validation during six seasons in 38 fields of peaches and nectarines of the ‘Valle
del Ebro’. The results indicated that the incidence of disease caused by Monilinia spp., recorded
in the field and postharvest, was similar in both plot evaluations and the calendar and warning
systems. However, the disease level was higher in late varieties (3.2% and 9.3% of infected fruit
recorded in the field and in postharvest, respectively) in comparison with earlier varieties (0.6%
and 3.1% of infected fruit recorded in the field and in postharvest, respectively). In general, the
strategy applied (the calendar or warning system) did not affect the disease level recorded. However,
when fungicide treatments were applied following the warning system, the treatment reductions
were higher than 50% in 96% of the trials in early varieties; meanwhile, in late varieties, this level of
reduction was obtained in 77% of trials. Our data encourage the use of the proposed warning system
as an effective strategy to control Monilinia spp. in peaches and nectarines, reducing the number of
chemical treatments applied in the field with a high level of efficacy.
eng
Attribution 4.0 International
Validation of a Warning System to Control Brown Rot in Peach and Nectarine
info:eu-repo/semantics/article