CAJ | 학술논문

在室内条件下，用微量点滴法和试管药膜法测定了辣根素对水稻褐飞虱3龄若虫的杀虫活性，在处理后72 h的LC50值分别为35．83、43．9 mg/mL。同时在网室条件下用喷雾法测定了20％辣根素乳油对水稻褐飞虱3龄若虫的控制效果，用500 g/L的20％辣根素乳油喷雾试虫72 h后，校正死亡率达到了100％。因此，辣根素可以作为一种植物性杀虫剂用来防治水稻褐飞虱。
재실내조건하，용미량점적법화시관약막법측정료랄근소대수도갈비슬3령약충적살충활성，재처리후72 h적LC50치분별위35．83、43．9 mg/mL。동시재망실조건하용분무법측정료20％랄근소유유대수도갈비슬3령약충적공제효과，용500 g/L적20％랄근소유유분무시충72 h후，교정사망솔체도료100％。인차，랄근소가이작위일충식물성살충제용래방치수도갈비슬。
In the laboratory , the insecticidal activities of allyl isothiocyanate ( AITC) against the third-instar nymphs of rice brown planthopper ( Nilaparvata lugens) were tested through micro -topical application and test -tube residual film bioassay , and it was found that its LC50 value at 72 h after treatment was 35.83 and 43.90 mg/mL respectively.Under the condition of net house , the control effect of 20% AITC emulsifiable concentrate ( EC) on the third-instar nymphs of rice brown planthopper was deter-mined by using spray method , the result indicated that:at 72 h after spraying 500 g/L 20% ATTC EC, the corrected mortality of the tested insect reached 100%.Therefore , AITC could be potentially used as a botanical insecticide for the control of rice brown planthopper .