Controlling or reducing the harmful impacts of tree diseases and insect pests on forests can be accomplished by all of the following except

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Introducing nonnative predators can often have unintended negative consequences on the ecosystem and may even exacerbate the problem. It is best to focus on using natural and local control methods, such as biological controls like predaceous bugs or genetically resistant tree species. The other options listed, which include banning imported timber, using pesticides, and promoting genetic resistance, are all viable strategies for controlling or reducing the impacts of tree diseases and insect pests on forests.

Controlling or Reducing the Harmful Impacts of Tree Diseases and Insect