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Obolodiplosis robiniae

Black locust gall midge

Description

The gall midge O. robiniae, same as its host, is native to North America and was introduced from North America to Europe. First reported in Europe in 2003 in the Veneto region in Italy. It then spread to Central Europe - South Tyrol, Slovenia, Czech Republic, Hungary, Slovakia, Serbia, Germany and Montenegro. On leaves are formed sacs created by the lateral bending and rolling of the leaf. Inside the sacks live larvae. They pupate in the same place. There are three or four generations pere season. Pupation takes place in the gall, except for the larvae of the last generation, that leave the mine and hibernate in the soil. The species is increasing its population density recently.

Symptom

There are sacs formed on the leaves, created by the lateral bending and rolling of the leaf. Inside the sacks live pest larvae.

Tree Species: Black Locust

Part of a plant- attacked: Leaf / Needle

Pest significance: Less harmful

Pest Category: Insects

Invasive Species: Yes

Present in EU: Yes

Last observations

There are a total of 2 observations of the species in the system

Obolodiplosis robiniaeBlack locust gall midge
Milan Zubrik
Number of votes: 0
Published: 22.5.2024