(a) The singular and plural forms of any word or term in this act shall be interchangeable and equivalent within the meaning of the act.

(b) The word “person” shall include corporations, companies, societies, associations, partnerships, or any individual or combination of individuals. When construing and enforcing the provisions of this act, the act, omission, or failure of any officer, agent, servant, or other individual acting for or employed by any person, as above defined, within the scope of his employment or office, shall in every case be deemed to be the act, omission, or failure of such person, as well as that of the officer, agent, servant, or other employe.

(c) Cultivated Black Currants: Plants, roots, cuttings or scions of Ribes nigrum L.

(d) Currants and Gooseberries: Plants, roots, cuttings or scions belonging to the genera Ribes L. and Grossularia (Tourn.) Mill.

(e) White Pine Blister Rust Control Area: An area established by State authority wherein the planting and possession of currant and gooseberry plants is prohibited for the purpose of protecting the white pines on such area from damage by white pine blister rust. The department shall have power to use in the administration of this act unemployed persons who may be designated by the State Emergency Relief Board, and who are compensated from funds appropriated to or available for expenditure by said board.

(f) Fruiting Currant and Gooseberry Control Area: An area established by State authority wherein the planting or possession of white pines is prohibited for the purpose of protecting fruiting currants and gooseberries in such areas from damage by the white pine blister rust.

(g) White Pine: Plants of any species belonging to the genus Pinus which bear their needles in clusters of five.

(h) White Pine Blister Rust: The fungous disease caused by Cronartium ribicola Fischer.