Functional response predator P. ramburi against mealybug P. manihoti: Functional response in general can be used as a measure of the effectiveness of a predator. Functional response can be divided into several types. According to [5], the functional response can be divided into 4 types. But the division of the functional response types into 3 types as proposed by [1], more frequently used. Based on the equation [22], by calculating the proportion of prey consumed compared to the available prey obtained linear coefficients (P1)