ISHS Acta Horticulturae 193: XIII International Symposium on Fruit Tree Virus Diseases
IDENTIFIED HELMINTOLOGICAL FAUNA ON APPLE AND PLUM TREES AND ITS CONTROL IN VIRUS FREE MOTHER PLANTATIONS |
| Authors: | G.M. Teodorescu, E. Romascu, M. Ivan |
| Abstract:
Research concerning mother plantations of apple and plum trees were carried out at the Fruit Growing Research and Production Institute Pitesti-Maracineni, during 1976–1980. We have studied the evolution of helmintological fauna with its quantitative and qualitative fluctuations of parasite and virus transmitting populations, as well as their control on the two mentioned fruit tree species. Soil samples analysed from apple tree sites showed infestation with : Xiphinema, Diphtherophora and Tylenchus ; from plum tree sites, Criconemoides, Paratylenchus, Tylenchorynchus and Xiphinema were detected. Of economic importance was the presence of Xiphinema diversicaudatum (a vector of AMV and CLRV) and Xiphinema americanum (a vector of TRSV and TomRSV viruses). We evaluated three nematicides on apple trees, for the control of nematodes from the soil : Miral 10 G (rate 30 kg/ha), Nemagon 20 G (rate 50 kg/ha) and Temik 10 G (rate 50 kg/ha), and four nematicides on plum trees : DBCP (rate 50 kg/ha), Nemaphos 10 G (rate 50 kg/ha), Vydate 10 G (rate 40 kg/ha), and Mocap 10 G (rate 60 kg/ha). The best results for the control of parasitic and virus transmitting nematodes were obtained with Nemagon 20 G, Temik 10 G and Mocap 10 G, when the treatments were applied during spring. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
