产卵前期 meaning in English

preoviposition period
previposition period

When feeding on t . nr . fijiensis , the beetle could oviposit and also finish its life history , without significant difference in the adult longevity compared with those feeding on its natural prey , but with longer developmental duration and higher mortality in each stage than those feeding on natural prey
( 4 )与自然猎物烟粉虱相比，小黑瓢虫取食替代猎物红蜘蛛的各虫态历期及世代历期延长，世代死亡率提高，产卵前期延长，总产卵量及平均每雌每天产卵量减少，而两者之间的性比、产卵率、产卵期、及雌虫寿命无显著差异。