樹木園 造成地域內 地존作業을 위한 아까시나무 除去試驗 = Herbicide Treatments on Cull Robinia pseudoacacia for Establishment of Arboretum

다국어 초록 (Multilingual 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, 1885.
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 consumption 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 tree 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.