Studies on the Eradication of Pedicularis spp., Alternate Host of White Pine Blister Rust with Several Herbicides

제초제처리(除草劑処理)에 의(依)한 잣나무털녹병(病) 중간기주(中間奇主)(송이풀류(類)) 제거시험(除去試験)

The study was conducted during 1975-1980 to evaluate the performance of several herbicides in controling alternate host, Pedicularis spp., of white pine blister rust disease in forest stands. The results obtained were summarized as follows. 1. It was found that Roundup was effective and most suitable herbicide in the fosest stands except that it accompanied some chemical injuries to neighboring plants. 2. As for the reduction density on the plot treated with Roundup was 100% and 65-91% respectively when investigated one and two years after its treatment on Pedicularis spp. 3. Another four chemicals, 2.4-D, Gramoxone, 2.4. 5-T and Para-col killed stems and leaves of Pedicularis spp. at the year treated, but appeared again next spring. 4. Eradication effectiveness in terms of spraying season was proved to be that late August was better than late May or June.

우리나라 잣나무털녹병(病)의 중간기주(中間寄主)인 송이풀류(類)를 제거(除去)하기 위(爲)하여 1975년(年)부터 몇 가지 제초제(除草劑)을 산지(山地)에 자생(自生)하는 송이풀류(類)에 처리(處理)하여 다음의 결과(結果)를 얻었다. 1. Roundup은 주위(周圍)의 초(草), 목본류(木本類)에 약해(薬害)를 주었으나 송이풀제거용(除去用) 제초제(除草劑)로서 가장 효과(効果)가 있었다. 2. Roundup의 송이풀 제거효과(除去効果)는 처리(處理) 1 년후(年後)에 100%, 2 년후(年後)에는 65~92%의 밀도감소효과(密度減少効果)가 있었다. 3. 2.4-D, Gramoxone, 2. 4. 5-T 및 Para-col은 처리당년도(處理當年度)에 송이풀의 경엽제거(茎葉除去)는 가능(可能)하였으나 익년도(翌年度) 봄에 재발순(再發筍)되었다. 4. 제초제(除草劑)의 살포시기(撒布時期)는 5~6月(송이풀발순완료기(發筍完了期))보다 완전(完全)히 성숙(成熟)된 8월하순(月下旬)에 살포(撒布)하는 것이 효과적(効果的)이였다.