AN INVESTIGATION ON THE POPULATION MOVEMENT OF Eupatorium adenophorum Spreng IN DIFFERENT ECOLOGICAL ENVIROMENT

Eupatoriurn adenophorum Spreng. is one of the malignant weeds. It has a vigorous, procreative power and quick wide-spreading over its site with the result of a serious disadvantage to forestation, gardening and other plantations. The control of its scattering is a matter of urgent. In order to find out the measures to surpass the growth and spreading of Eupatorium adenophorum, a series of observation over its population movement under different ecological enviroment was carrying out and a study on the means of Replace-control was worked out, through which, the species of quick-growing tree being adopted, the I. P. M. method being considered sucessfully, in a word, the spreading of Eupatorium adenophorum is able to be controlled and surpassed.