Rosemary has white spots

Leaf hoppers

Bright spots on the top of the leaves, mostly yellowish white to yellow, usually come from leaf hoppers, which are usually no larger than a maximum of two millimeters and are winged. The animals are very agile and not only hop on the plant, but almost everywhere. Leaf cicadas suck out the cell sap of the infected plants, which also creates the bright spots - these are simply the puncture sites. Infested plants should be repotted as soon as possible.

Spider mites

Spider mites again occur mainly towards the end of winter. They love dry and warm air and prefer to colonize already weakened plants. A spider mite infestation can initially be recognized by small, also yellowish-white spots. Later, however, the leaves first turn gray, then brown and finally fall off. In addition, the spider mite - hence its name - forms fine white webs mainly in the leaf axils. This is her preferred abode and this is where she lays her eggs. The spider mite also likes to feast on the sap. Plants infected with spider mites should be sprayed vigorously in the shower and washed off with a soft soap solution.

mildew

Powdery mildew is not a pestbut is caused by a fungus. Rosemary is mostly made from real mildew infested, which occurs mainly on warm and dry days. You can recognize powdery mildew by the white, powdery coating mainly on the upper side of the leaves - the plant literally looks like it has been dusted with flour. The first step in combating is always to generously remove the infected parts of the plant, as the fungus spreads very quickly. You should also spray the plant with a milk-water mixture or garlic stock and repeat the treatment for several days in a row.

Tips & Tricks

Many pests love dry air, which is why you can often prevent an infestation by increasing the humidity. To do this, spray your rosemary all around regularly in summer or shower the plant off.

IJA