S.C. Code Ann. § 48-29-50: State Commission of Forestry or its agents may enter property to investigate or control forest pests.

The State Commission of Forestry or its authorized agents shall have the power to go upon any land in the State to investigate, take measures to control, suppress, or eradicate forest pests. If any person refuses to allow the State Commission of Forestry or its agents to go upon his land to carry out the purposes of this chapter, or interferes with the investigation and control of forest pests, the State Commission of Forestry may apply to any court of competent jurisdiction for an injunction or other appropriate means to restrain the person from interfering with the State Commission of Forestry or its agents.