ISHS Acta Horticulturae 94: XI International Symposium on Fruit Tree Virus Diseases
STUDY ON THE FLIGHT ACTIVITY OF APHID VECTORS OF PLUM POX VIRUS |
| Authors: | G. JENSER, L. SZALAY-MARZSO, A. MESZLENY |
| Abstract:
From among the aphid species known as vectors of plum pox virus the following species were studied from point of view of flight activity: Myzus persicae Sulz., Brachycaudus helichrysi Kalt., Phorodon humuli Schrk. The studies were carried out in 1978 by using yellow pan traps in peach, apricot and apple stands. The species mentioned occurred in the orchards independently of fruit species; there were however differences in the dates of appearance. The three species occurred in the spring months in the crown level of fruit trees, with maxima in the second half of May and in June. In the summer months the level of alate aphid populations considerably diminished, while in September-October again flight maxima were observed with the exception of Phorodon humuli. From point of view of plum pox virus transmission especially the spring flight may be regarded as dangerous. | |
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