What is the reason for the ban on imported plants?

What is the reason for the ban on imported plants?

Bamboo and Lacquer are two types of herbs whose import has been banned in the country; what is the reason for this ban?

It should be noted that the most important reason for the ban on the introduction of foreign plant species into the country is the destruction of indigenous species; in fact, imported species become invasive species; and imported species may carry diseases and pests that do not even occur in their native area. By entering a new climate and climate, the source of pests and diseases.