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In north Italy were I live I have two plants of laurus at the two sides of a garden. One of them has some sort of parasite on its leaves.
Someone know something about it? Leaves are covered with something like an oil.
As @picapica has pointed out, I presume these are scale insects, the first instar of Japanese wax scale, Ceroplastes japonicus.
Laurus sp. is a host of this hemiptera in Italy.
Here is an image showing the second instar from Italy:
These are the adult females :
Required, but never shown