Update on Liriomyza huidobrensis in Germany
Liriomyza huidobrensis (EPPO A1 pest; now transferred to the A2 list) has been present in the state of Bavaria and other states of Germany (see also Reporting Service No. 520/15) since 1990-05 (but probably already since autumn 1989). In Bavaria the pest appeared first on cucumbers, beans and tomatoes on 3000 m2 in glasshouses in 1990-05. During the vegetation period the pest spread to other glasshouses as well as outdoor crops. In cucumbers and beans which had been infested early in their vegetation period yield losses between 90-100% were recorded. In tomatoes 20-40% yield losses were recorded. Outdoor lettuce from the vicinity of infested glasshouses suffered enormous losses and was not harvested anymore.
The author assumed that L. huidobrensis can survive outdoors as pupae during mild winters.
Sources
Leuprecht, B. (1992) Liriomyza huidobrensis, eine neue, gefährliche Minierfliege.
Gesunde Pflanzen 44, 51-58.