Abstract:The enzyme-linked immunosorbent assay (ELISA) of double antibody sandwich was used to detect the predation of %Chironomus% sp.by 19 species of predators found in paddy fields. Antiserum was produced in a white male rabbit with an antigen from Chironomus sp., and its high specificity to Chironomus sp. was examined through crossing reaction, neutralization reaction and two-way agar diffusion in laboratory. The thresholds of 19 species of predators to Chironomus sp.were determined. 13 species of predators fed ...