The prohibition on transporting of plants and plant parts established in WAC 16-752-620 does not apply to plants or plant parts collected for herbariums, research in control methods, creation of pressed specimens, or for educational or identification purposes and other scientific activities, as long as all such activities are conducted in such a manner as to prevent infestation. In addition, plants or plant parts may be transported, as a part of a noxious weed control activity, to a sanitary landfill, to be burned, or otherwise for disposal under the guidelines of a noxious weed control agency.