Situation of Globodera pallida and G. rostochiensis in the former German Democratic Republic
A historical review of the situation of potato cyst nematodes in the former German Democratic Republic is presented by Grosse (see also EPPO RS 509/02, 1991). It is acknowledged that Globodera rostochiensis (pathotype Ro1) could not be prevented from spreading through the former German Democratic Republic. In 1965, 4 % of the arable land was infected, and this reached 19 % in 1985. The main areas concerned were the present new Bundesländer, Brandenburg and Mecklenburg-Vorpommen. However, in the 1980s, as up to 35 % of all cultivated potatoes were nematode-resistant, a significant decrease of potato cyst nematode populations was observed. From 1978 to 1988 Globodera rostochiensis (pathotype Ro1) and Globodera pallida were only found on 800 ha maximum, with usually minor level of infection.
Grosse, E. (1996) [Legal regulations and practical conditions for the control of potato cyst nematodes Globodera pallida and G. rostochiensis in the former DDR.]
Mitteilungen aus der Biologischen Bundesanstalt für Land-und Forstwirtschaft, Berlin-Dahlem, 317, 209-218.