Flight phenology of cherry bark tortrix moth - Enarmonia formosana Scop. in Poland in years 1987-94
1996
Pluciennik, Z. | Tworkowska, U. | Banys, M. | Brozbar, J. (Instytut Sadownictwa i Kwiaciarstwa, Skierniewice (Poland))
Phenological observation on cherry bark tortrix moth flight were carried out, using pheromone traps in apple orchards at 4 climatic regions in Poland. Disting differences were found concerning the beginning at the flight in particular years. However, majority of the males began to flight in second half of May and continues it constantly for 3-4 months. In warm springs relatively high number of the males appeared in the traps also in the second decade of May. In some seasons activity of the males were noted till third decade of August. First treatment against cherry bark tortrix moth should be made in the first or second decade of June, followed by the next ones suited to actual course of flight, depending on weather and place
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