Akademik Veri Yönetim Sistemi
DER ERWERBSOBSTBAU, sa.65, ss.2289-2297, 2023 (SCI-Expanded)
The physiologies of insects and their fitness are significantly
influenced by the specific microclimate they encounter. Insects could
therefore be sensitive within short periods to climate change at the
population level, such that the fingerprints of even early stages of
climate change could be seen on insect population density and the number
of generations. The oriental fruit moth, Grapholita molesta
(Busck) (Lepidoptera: Tortricidae) is one of the important pests related
to stone and pome fruits in Türkiye. Even at low population densities, G. molesta
can cause economic damage and lead to crop losses of up to 50%. The aim
of this study discusses the impact of climate data on the population of
G. molesta. This study was conducted in the nectarine Prunus persica var. nectarina
Maxim. (Rosales: Rosaceae) orchard with approximately 7‑year-old trees
in Mersin province (Türkiye) between 2020 and 2022. The population
fluctuation of G. molesta was studied using pheromone traps. In
2020, the pheromone traps were hung on the trees in orchards during the
third week of May, whereas in 2021 and 2022, they were suspended during
the third week of March. G. molesta captures were recorded weekly from March/April to October/November. The progeny number of G. molesta in our study was higher than in previous studies. Also, our findings demonstrated that the first adult emergence for G. molesta
was earlier than in previous studies conducted. Our study demonstrated
that not only the temperature but also precipitation and relative
humidity have an effect on the population and progeny of G. molesta.