The invention provides a control agent composition for miscellaneous trees and miscellaneous shrubs and application of the control agent composition. The prevention and removal agent composition for miscellaneous trees and miscellaneous shrubs comprises the following effective components in parts by weight: 92 to 276 parts of
urea component and 20 to 80 parts of
triclopyr. When the composition is used, the prepared
dosage form is preferably a water suspending agent, and the composition is particularly suitable for preventing and controlling miscellaneous tree and miscellaneous
irrigation in non-
cultivated land occasions, has the advantages of broad-spectrum killing, high efficiency,
low toxicity, quick effect and
long lasting period, and particularly has the advantages of improving the fast-acting property and lasting period of preventing and controlling the miscellaneous tree and miscellaneous
irrigation in railways, expanding the prevention and control spectrum of the miscellaneous tree and miscellaneous
irrigation and reducing the cost. In addition, the method can effectively avoid the phenomenon of repeated reviving of railway miscellaneous trees and miscellaneous irrigation,
delay the occurrence and development of
drug resistance of the miscellaneous trees and miscellaneous irrigation, effectively reduce the application frequency and dosage of the medicament, solve the problems of poor effect of removing tree irrigation by using common herbicides and influence on the environment due to excessive application, and also have important significance on
ecological environment protection.