果樹害蟲(吸收式口)에 對한 浸透 殺蟲劑 中 Methyl Demeton Compound 의 殺蟲效力 = THE KILLING EFFECTIVENESS OF METHYL DEMETON COMPOUND SYSTEMIC INSECTICIDE ON INJURIOUS INSECTS (SUCKING MOUTH PARTS) OF FRUIT-TREES

국문 초록 (Abstract)

(1) 藥劑의 葉面 撒布에 있어서는 植物體의 上部보다 中部 및 下部에 撒布함이 效果的이며 진딧물 類는 1000∼2000倍 응애類는 500∼1000倍가 效果的이었고 藥劑 撒布 後 1∼2日에 藥效가 出現하였으며 殘效期間은 2週日 問이었다.
(2) 土壤 灌注는 진딧물類는 2000∼3000倍를 坪當 5升 比率로써 뿌리 둘레에 灌注함이 效果的이었고 葉面 撒布에 비하여 效力은 2∼3日 늦게 出現하였으며 殘效期問은 約 4週日이었다.
(3) 樹幹 塗布는 5倍 稀釋液이 效果的이고 藥效의 出現은 葉面에 比하여 6∼7日이나 늦게 出現하며 殘效期間은 約 45日 問이었다.
(4) 복숭아 果木에서는 1000倍稀釋液에서 撒布後 5日째부터 上部의 葉이 變色하며 若干 萎凋 現象의 藥害가 나타남으로 特히 留意할 点이라 하겠다.

다국어 초록 (Multilingual Abstract)

1 In case of foliage spraying of the agricultural chemicals on the fruit-trees, spraying it in the central and/or lower parts of trees were further more effective than spraying it on the upper parts The most adequate concentration ranges of Methy 1 Demeton Compoud (M.D.C) solutions were 1/1000 1/2000 for aphids and 1/500 1/1000 for mites. It was noticed that spraying effect appeared in one or two days and the efficiency term for insects was two weeks after the spraying of the agricultural chemicals
2. The most efficient soil injection of agricultural chemicals in the ground of fruit-trees for aphids was 10 liters of 1/2000 1/3000 M.D.C. solutions per 2 square meters of ground around roots. The spraying effect appeared two or three days later than that of spraying of leaf and the efficiency term was four weeks
3. As for a trunk varnish of fruit-trees, 1/5 diluent of M.D.C was more effective than any other diluents. The spraying effect for insects appeared six or seven days later than that of spraying of leaf and the efficient term was generally retained for foully-five days.
4. As the result of spraying 1/1000 M.D.C diluent in peach trees, slight wilting phenomenon due to spray injury was noticed five days after spraying and this caused to discolor the leaves of upper part of trees.

목차 (Table of Contents)

• [Ⅰ] 緖論
• [Ⅱ] 試驗材料 및 方法
• [Ⅲ] 試驗成績
• [Ⅳ] 考察
• [Ⅴ] 摘要
• [Ⅵ] 參考文獻