Integrated pest management in apple orchards - experiments in Romania
1997
Baicu, T. | Margarit, G. | Stanculescu, M. (Research Inst. for Plant Protection, Bucharest (Romania))
The experiment within the IPM (Integrated Pest Management) project was organized in 1992 at the Fruit Tree Research Station Voinesti, in an orchard (26 years). The IPM system has been applied in a 2 ha orchard with Jonathan. Golden Delicious and Red Delicious cultivars. To improve natural control we used sorghum (Sorghum bicolor), buckwheat (Fagopyrum esculentum), dill (Anethum graveolens), vetch (Vicia spp.) in 1992, and coriander (Coriandrum sativum) in 1993. Comparison between the IPM plot and the chemical supervised control plot. The number of beneficial organisms was much higher in the IPM plot. The key-problem in these experiments was the control of apple scab and wooly aphid. In 1994 we planted a new orchard, half with cultivars resistant to apple scab and medium resistant to powdery mildew, Generos and Florina. In the young orchard with resistant cultivars superiority of IPM was proved by a lower number of sprayings, smaller amounts of active ingredients and a sustained activity of beneficial arthropods.
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