通过对斜纹夜蛾核多角体病毒(Spodoptera litura nuclear polyhedrosis virus)的示范推广、施药方法改良、残毒检测的应用与研究,得到此病毒增效剂的平均防效为76.8%,其防效最优,且其使用浓度比广州病毒低2倍,天敌种类、数量都有增加,经济效益增效明显,其增净产值比清水对照、常规分别高2623.5、1014.0元/公顷,经检测,其农药残毒量最低。 Through the demonstration and popularization of Spodoptera litura nuclear polyhedrosis virus, the improvement of pesticide application method and the application and research of residual virus detection, the average potency of this virus synergist was 76.8% Its concentration was lower than that of Guangzhou virus by 2 times, its natural enemy species and quantity increased, its economic benefits and synergism were obvious. Its net production value was 2623.5 and 1014.0 yuan / ha higher than that of normal water respectively. After testing, its pesticide residue The lowest volume.