对梳冬夜蛾和白边切夜蛾卵的过冷却点、结冰点和不同低温强度及持续时间等指标的冷冻处理测定结果:梳冬夜蛾卵过冷却点为-18.76±4.09℃,结冰点为-17.7±5.02℃;白边切夜蛾卵的相应指标分别为-8.13±3.17℃和-7.15±3.09℃。两种蛾卵在一定的低温条件下,处理时间愈长,卵孵化率愈低;随着低温强度加大,卵孵化率明显降低。 The results of cryopreservation of the supercooling point, freezing point and different low temperature strength and duration of eggs of the comb-tooth-moth and the white-faced larvae were as follows: the supercooling point of the eggs was -18.76 ± 4.09 ℃, The freezing point was -17.7 ± 5.02 ℃. The corresponding indexes of the white-faced oviposition eggs were -8.13 ± 3.17 ℃ and -7.15 ± 3.09 ℃, respectively. Under the condition of certain low temperature, the longer the treatment time, the lower the hatchability of eggs. With the increase of low temperature strength, the egg hatchability decreased obviously.