| 摘要 |
PCT No. PCT/DK95/00218 Sec. 371 Date Dec. 5, 1996 Sec. 102(e) Date Dec. 5, 1996 PCT Filed Jun. 2, 1995 PCT Pub. No. WO95/33374 PCT Pub. Date Dec. 14, 1995A method for control of vegetation at places where said vegetation is undesirable, said method comprising intense irradiation of the vegetation for one or several periods by light, of which at least 10% of the effect is ultra-violet light, the total irradiation dosage (joule/m2) exceeding a minimal value necessary for the intended vegetation control. An apparatus for performing the method comprises at least one light source directed towards the undesired vegetation and emitting at least 10% of its light discharge in the ultra-violet range, said apparatus comprising means which after discharge of an irradiation dosage surpassing the minimal value necessary for the intended vegetation control discontinue the treatment of the areas in question.
|
