2020 Volume 55 Issue 3 Pages 80-83
The effects of concentrations and exposure durations of H2O2 on the egg laying and egg hatching of Neobenedenia girellae were investigated. Four groups of eight adults or approximately 250 eggs were treated with H2O2 as follows: 0 ppm for 30 min (control), 300 ppm for 3 min; 75 ppm for 30 min; 100 ppm for 30 min. The adults in the H2O2 exposed groups produced significantly fewer number of normal eggs. Additionally, the H2O2 exposures to the eggs significantly reduced the hatching success of the eggs at < 24 h after laying, but the eggs at 48–71 h after laying were not affected.