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通过室内试验对二化螟的滞育解除进行了初步研究结果表明，食料对二化螟的滞育有明显的促进作用，但这种促进作用不表现在化蛹率的提高，而在于缩短供试幼虫的群体临界化蛹前期。越冬幼虫在滞育解除过程中对水分的需求可以通过主动吸收或直接饮水两种方式获得，水分对滞育解除的促进作用不仅表现在越冬幼虫化蛹率的大幅度提高，而且表现在有水条件下越冬幼虫群体临界化蛹前期的明显缩短，但水分不是二化螟滞育解除的先决条件。在二化螟滞育解除过程中，有效积温法则是起作用的，初步求得滞育解除的起点温度为12±2．7℃、有效积温为409．5±95．8d℃。一化性和二化性的二化螟越冬幼虫在滞育解除方面的差异仅表现在群体临界化蛹前期的长短上，一化性CC品系的群体临界化蛹前期显著长于二化性PL品系。
The preliminary study on the diapause release of Chilo suppressalis was carried out by laboratory experiments. The results showed that the food material had a significant promotion on diapause of Chilo suppressalis, but this enhancement did not show the improvement of pupation rate, The population of test larvae is critical to the pupal stage. Overwintering larvae in the process of diapause to relieve moisture demand can be obtained by active absorption or direct drinking water in two ways, the promotion of diapause water not only in the larvae overwintering pupation rate significantly increased, but also in water Under the conditions, the population of overwintering larvae was significantly shortened at the pre-pupal stage, but water was not a prerequisite for diapause termination. In the process of the diapause termination of Chilo suppressalis, the effective temperature law is effective. The starting temperature of initial diapause is 12 ± 2.7 ° C, and the effective accumulated temperature is 409.5 ± 95.8d ° C. Differences of diapause and larvae of overwintering larvae of one-sex and dual-effect larvae were only shown in the period of pre-pupal stage of population criticality. The population critical stage of one CC strain was significantly longer than that of two-sex PL lines .