Roxana Ionela Ștefan (Untaru), Mihai Botu, Aurelian Valentin Untaru, Eugenia Mareș
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apple, cultivars, diseases, pests, ecological system
This work present the behaviour to diseases and pests of 12 apple cultivars with different origin (‘Aura’, ‘Rumina’, ‘Jonaprim’, ‘Rustic’, ‘Rebra’, ‘Redix’, ‘Orion’, ‘Luna’, ‘Rubinola’, ‘Topaz’, ‘Goldrush’ and ‘Crimson Crisp’), located in a field trial of RIFG Pitești, Romania, managed in ecological system. In 2023 observations regarding the behaviour of these cultivars at the fire blight and the codling moth were made. In order to prevent bacterial infections, in the ecological variants the product Blossom Protect (2 applications during the flowering period) was used. Observations regarding the attack caused by Erwinia amylovora, were made on short fruit formations (100 leaves) and on shoots (50). The results were expressed as a percentage as a frequency of the attack. Of the 12 cultivars studied, the ‘Topaz’ cv. proved to be the most sensitive, the frequency of attack in the lot treated with Blossom Protect being 8.25% on short fruiting shoots and 0.08% on shoots, much smaller compared to the group standard (F=20.55% on short fruiting formations, 0.24% on shoots). For the monitoring of the pest Cydia pomonella, AtraPom pheromone traps were used. In the first generation, the frequency of the attack was between 0.0-0.4% depending on the cultivar, compared to the untreated variant where the frequency was 20.2%. In the second generation the frequency of the attack was between 0.0-0.5% compared to the untreated variant where the frequency was 33%.
Cite this paper: Ștefan (Untaru), R.I., Botu, M., Untaru, A.U., Mareș, E. (2024). RESULTS REGARDING THE BEHAVIOR OF SOME APPLE CULTIVARS TO DISEASES AND PESTS IN SUSTAINABLE CULTURE. Current Trends in Natural Sciences, 13(25), 89-95. https://doi.org/10.47068/ctns.2024.v13i25.012
