The Regents of the University of California may collect and, subject to the provisions of Section 6305, import into this state from foreign countries, parasitic and predaceous insects for use in the control of insect pests of horticultural and agricultural crops and of livestock. The regents may, for this purpose, employ and send abroad experts who shall be allowed, in addition to their compensation, their necessary subsistence, traveling, and other expenses incidental to the performance of their duties.