The development ze-ro of the insect at the egg stage, nymphal stage,preoviposition stage and of the whole generationwas-0.0 ℃, .8℃,0.℃and . ℃,respectively.
The development ze-ro of the insect at the egg stage, nymphal stage,preoviposition stage and of the whole generationwas-0.0 ℃, .8℃,0.℃and . ℃,respectively.
卵期、若虫期、产卵前期和世代发育起点温度分别为—0．0 ℃， ．8℃，0．℃和． ℃。