樹木園 造成地域內 地존作業을 위한 아까시나무 除去試驗

Abstract

This experiment was conducted at the Seoul National University Arboretum at Seodun-dong, Suweon, Kyeonggi-do, Korea (1) to find out methods killing Robinia pseudoacacia L. effectively and (2) to minimize ecological and aesthetic problems. Glycine and 2,4-D were treated in several concentration following the saw-scratching and cutting of stems on July 22 and 29, 1985. The results were measured on October 17, 1985. The results obtained were as follows: 1. Ecological problems were decreased by these methods. 2. In case of herbicides treatment on section area, aesthetic problems were minimized, and amounts of herbicide consumptioi~ were five times as little as in case of spraying plants with herbicides. 3. The death rate amounted to 100% when the ratio of Glycine solution to water was 1:3, so that the concentration, 1:3 was most economical to kill the trke throughly. 4. The death rate amounted to 100% when the ratio of Glycine solution mixed with 2,4-D to water was 1:4, therefore Glycine solution mixed with 2,4-D was more effective than pure Glycine solution. Since 2,4-D solution was less expensive than Glycine solution and only small amounts of 2,4-D solution was added, it was most economical and effective method that Glycine solution mixed with 2,4-D was diluted to the concentration, 1:4 and treated on the stem.