Using natural decorations such as Christmas trees and wreaths during the Christmas holidays can inadvertently promote the spread of invasive plant and insect species. By carrying eggs such as those of the spider willow and spotted lamprey, these invasive species damage local ecosystems and harm the economy.

To avoid this problem, it is recommended to carefully inspect natural decorations before using them, and if any insect eggs or nests are found, remove them in appropriate ways. Also, avoid buying or making decorations that contain invasive plants.

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