Published in Scientific Papers. Series B, Horticulture, Vol. LXVI, Issue 1
Written by Nicolae GHEORGHIU, Laurențiu BĂLONIU
This paper highlights the results obtained following the application of different treatments to control Phyllonorycter blancardella. The weather parameters values were correlated with the attack dynamics, establishing precisely both the moments of maximum vulnerability and insecticide application, for the highest possible effectiveness. Data were collected using the Watchdog station and also AtraBlanc-type pheromone traps were used in the field to monitor the adult’s flight. In order to analyze the effectiveness, two treatment schemes were proposed, one of which included the active substance spirotetramate (V2). In the case of the three generations (G1-G3) of pest larvae, the calculated efficacy of the two treatment variants recorded the following values: for G1 the efficacy was 79.41% (V1) and 98.52% for V2 variant; for G2 generation the efficiency was 78.38% for V1 and 97.3% for V2, and for G3 generation, the V1 efficiency was 76.92%, and in the variant where spirotetramate was applied at three different times the efficiency increased to 97.43%.
[Read full article] [Citation]
