The Department of Natural Resources shall


(1) get and distribute information on subjects connected with agriculture;


(2) control and regulate the entry and transportation of seeds, plants, and other horticultural products;


(3) control and eradicate the spread of pests injurious to plants, trees, vegetables, livestock, poultry;


(4) aid in developing used and unused agricultural resources; and


(5) experiment and determine practical methods of growing, processing, soil analysis, eradication of obnoxious weeds, control of insects, and cheaper and more satisfactory methods of land clearing.