Lopholeucaspis japonica is listed as Leucaspis japonica in EPPO list as pest recommended for regulation as quarantine pest. It attacks 59 tree species and this list is probably not complete. For Slovakia the most important hosts are apple trees, cherries, pears, maples, hornbeams, lindens or birches, but also other species useful in agriculture, horticulture or forestry. There is no a big risk of Lopholeucaspis japonica natural spreading to Slovakia in close future. Much more dangerous for introduction is importation of infested plants or plant parts. For this reason it will be good to toughen the phytosanitary controls for this pest. There is high probability of establishment due to presence of variable host trees spread all over Slovakia. Consequences of establishment should be very different in various areas of economics. In localities where is a good management and protection against insect pests, there will be probably only low infestation impact. But in localities with low level of protection against pests, there could be more important economic impact. There also could be ecological problems in these localities. Activities made by Lopholeucaspis japonica can cause branches or whole tree dieback. Lowering of natural defence of the tree can enhance infestation of other biotic pests.

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