Strange things on leaves

Leaf miner The leaf miners are very small, black and yellow colored flies with a body size of two to three millimeters. The adult female leaf miner flies create a hole in the leaf with the help of their laying spines. From this they suck the emerging sap or cover it with eggs, from which larvae hatch. The larvae produce the typical damage pattern for leafminers, the mining passage. The larvae of the leaf miners have a special way of eating their way through the infested leaves, because they mine through the leaves. This is where the name of the leaf miner comes from. The leaf miner mostly occurs when growing outdoors. It just flies through the air 😉 If it occurs indoors, it is advisable to provide all supply air openings with fly screens. Leaf miners are difficult to control outdoors with the sole use of chemical plant protection measures. It is advisable to use beneficial insects (parasitic wasps) and yellow tablets! A close-knit culture protection network could also help.

Bladmineerders, verwijder aangetaste bladeren en neem enkele preventieve maatregelen voor de plant.

Dat lijkt op bladmineerders. Pak een vergrootglas en kijk of je insecten kunt vinden.