The invention relates to a method for controlling weed growing on a ground surface, comprising of displacing a supply of hot liquid (4) over the ground surface and dispensing the hot liquid onto the ground surface in substantially pressureless manner, wherein a search is made for the weed and the hot liquid is only dispensed on detected weed plants. <；??>；The supply of hot liquid can be stored in a buffer (8,9) which is connected to an number of dispensing openings (22), wherein the hot liquid is dispensed only by that/those dispensing opening(s) situated above or in the direct vicinity of the detected weed plants (w). <；??>；The weed can be searched for by optical means (6) and the dispensing of the hot liquid can be electronically controlled. <；??>；The invention further relates to an apparatus for performing this method. <；IMAGE>；
