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日本龟蜡蚧ＣｅｒｏｐｌａｓｔｅｓｊａｐｏｎｉｃｕｓＧｒｅｅｎ雌蚧体重与产卵量之间成直线的正相关关系。在悬铃木、栀子花上危害的雌蚧身大体重，孕卵、产卵速度快，死亡率低，多年受害的黄杨雌蚧则相反。５月日均温２４．４－２６．８℃，是该蚧产卵的最适宜温度，２１－２２时气温凉爽是一天中产卵的高峰时间。卵期发育最适宜温度为２６．３０－２７．１６℃，距此适温越近，发育速率越快，小于或大于此温度范围，则卵期发育延长
Japan turtle scale Ceroplastes japonicusGreen female goose body weight and the amount of spawning a straight line between the positive correlation. In the Plaitwood, Gardenia on the hazards of female cadavers body weight, pregnancy eggs, ovipositing speed, low mortality, for many years the victims of P. yam the opposite. May average daily temperature of 24.4-26.8 ℃, is the most suitable temperature for laying on the scale, 21-22 when the temperature is cool, the peak time of spawning day. The most suitable temperature for the development of eggs is 26.30-27.16 ℃. The closer to this suitable temperature, the faster the development rate. If the temperature is less than or greater than this temperature range, the development of ovum will be prolonged