Situation of several quarantine pests in Germany in 1997 and 1998
The Plant Protection Service of Germany has informed the EPPO Secretariat of the following:
- Colletotrichum acutatum (EU Annex II/A2) was found in Sachsen in 1997 in one field of 2 year-old strawberries. Infected plants were removed as well as suspected plants located in neighbouring plots of one ear-old strawberries. Treatments were applied and surveys of this disease will continue.
- Liriomyza huidobrensis (EPPO A2 quarantine pest) has been found in July 1997 at the Zoo of Berlin. The pest occurred on tomatoes grown for animal feed in a glasshouse of 100 m2. After harvest, tomato plants were destroyed. The origin of this outbreak is unknown.
- In 1997, four isolated cases of Puccinia horiana (EPPO A2 quarantine pest) were reported, in all cases infected plants were destroyed and premises treated with fungicides:
1) in July 1997, the disease was found in one glasshouse of 300 m2 in Berlin on chrysanthemum plants ready to be sold.
2) in August 1997, it was found in 350 chrysanthemum plants in a small garden centre in Mecklenburg-Vorpommern. All these plants originated from a single company in Berlin which had in the meantime ceased to exist.
3) in August 1997, it was found in a garden centre in Thüringen in one plot of 50 m2 on chrysanthemum for cut flowers.
4) in October 1997, it was found in a 100 m2 plot of chrysanthemum for cut flower production in Thüringen.
- In 1998, Puccinia horiana was found in Berlin, in a field plot of 300 m2 of chrysanthemum plants ready to be sold. Chemical treatments were applied, and the disease has not been found again.
- Mycosphaerella pini (Scirrhia pini - EU Annex II/A2) was found in 1997 on pines in one nursery in Bayern. All infected pines were lifted and burned. This nursery and the surroundings are strictly controlled by the Plant Protection Service.
- In 1997, Tilletia controversa (EPPO A2 quarantine pest) has been found for the first time since 1984 in Bayern and Baden-Württemberg. These very few occurrences are thought to be caused by a combination of favourable weather conditions and incomplete or absent seed treatments. T. controversa can be considered as present in Germany but with a restricted distribution.
Plant Protection Service of Germany, 1998-09.