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应用酶联免疫吸附试验（ELISA）来研究捕食作用能较准确地评价捕食性天敌对害虫的控制作用。ELISA检测表明，不同种类的捕食性天敌对稻飞虱的捕食作用有较大差别，其中以优势种食虫沟瘤蛛和拟水狼蛛的捕食作用最大，阳性反应率与稻飞虱的种群密度有一定的相关关系，但在稻飞虱密度较低的情况下也表现出较高的阳性反应率。
Application of enzyme-linked immunosorbent assay (ELISA) to study the predation effect can more accurately evaluate the control effect of predators on pests. The results of ELISA showed that predation of different species of predatory natural enemies on planthoppers was quite different. Among them, the dominant species were predacious insects, predatory and predatory animals, and the positive reaction rate was closely related to the population of planthoppers There is a certain correlation between the density and density, but the density of rice planthopper also showed a higher positive reaction rate.