You can study their ecology, molecular biology, development, control and management (as pests), and interaction to plant host (and vice versa). Here are some links. You might want to further read:
Article Studies on the ecology of the yellow stem borer, Scirpophaga...
Article Mechanisms of compensation of rice plants to yellow stem bor...
Article RNA-Seq of Rice Yellow Stem Borer, Scirpophaga incertulas Re...