To prevent the spread of dangerous plants or dangerous plant pests or dangerous disease throughout the State, the Director shall implement a plant or plant pest quarantine when he/she has determined that a dangerous plant or dangerous plant insect or plant disease has been found within the State and presents a significant risk to the production of agricultural or horticultural crops or to other plants which are essential to maintaining the ecosystem and the asthetic enjoyment thereof.
Ill. Admin. Code tit. 8, § 240.250
Amended at 6 Ill. Reg. 3041, effective March 5, 1982