Carbofuran 處理가 本畓初期 害蟲防除에 미치는 影響 = The Effect Carbofuran Treatment on the Important Insect Pests of Paddy Rice at the Early Growth Stage

국문 초록 (Abstract)

育苗箱에 Carbofuran을 處理하여 本沓初期의 主要害蟲에 對한 防除效果를 알기 위하여 調査하였던바 그 結果를 要約하면 다음과 같다.
1. Carbofuran 粒劑를 育苗箱, 써레질前 및 水面處理 하였던바 약효특속기간은 水面處理가 14日 써레질 全處理가 21日程度 이었으나 育苗箱處理는 28∼35日程度 이어서 害蟲防劑에 省力的이고 防除效果도 높았다.
2. 따라서 機械移秧栽培時 育苗箱에 藥劑處理로서 本沓初期 내지는 中期害蟲防除까지 可能하며 또한 本沓後期 防除를 爲하여 8月 15日 前後에 Carbofuran 粒劑를 1回 水面處理 함으로써 本沓後期의 害蟲防除가 可能하리라고 期待된다.

다국어 초록 (Multilingual Abstract)

This study was conducted to find out the effect of Carbofuran on the several important insect pests at the early growth stage of paddy rice, and the results were as follows;
1. The vertue of Carbofuran treated before hallowing lasted to 21 days and that treated in the water-suface of paddy field lasted to 14 days.
However, in the treatment of Carbofuran at seeding box stage, its vertue lasted 28 to 35 days in response.
So, it was more effective than any other one in the treatments.
2. Consequently, when Carbofuran was treated at the seedling box stage before transplanting by machinary, its vertue lasted enough long to control the insect pests appeared from the early growth stage to the middle growth stage of paddy rice.
If Carbofuran can be used around August 15, it could be lasted until the later growth stage. Therefore, the twice applications of Carbofuran, 1 day before transplanting and around August 15, could be expected to control these insect pests appeared to paddy rice field during the growing period.