When the dosage of (1) is large, it can control weeds, but it has obvious inhibitory effect on plant growth and development, and spraying gibberellin can reverse this inhibitory effect.

(2) Plasticine is a temporary auxin inhibitor, which can be metabolized in plants after a few weeks, causing seedlings and ornamental plants to cluster. Once the drug effect disappears, plants can still grow again.

(3) Plasticine is easily photolytic and heat-resistant, and should be stored in a dark, heat-insulating and dry place.