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苹果全爪螨越冬卵发育起点温度为７．６℃，有效积温９２．４℃／ｄ，冬卵孵期与金冠苹果花序分离期一致（４月中下旬）。该螨田间种群一年有７个消长峰，７月中旬前为种群增长阶段，以后为下降阶段。冬卵始于８月底，１１月中旬全部进入越冬。４月下旬、５月中旬和８月底９月初为３个药剂防治有效时期。此外，还组建了苹果全爪螨Ｉｗａｏ序贯抽样数学模型和给出了春秋季药剂防治的Ｉｗａｏ序贯抽样表和序贯抽样图。
The starting temperature of overwintering egg development was 7.6 ℃ and the effective accumulated temperature was 92.4 ℃ / d. The hatching period of winter egg was consistent with that of Golden Delicious apple inflorescence (middle and late April). The acarid field population has seven annual growth and decline peak, mid-July before the population growth stage, after the decline stage. Winter eggs began in late August, mid-November into the winter. In late April, mid-May and the end of August, early September, three effective period of chemical control. In addition, Iwao also established a sequential sampling mathematical model of apple mite and gave Iwao sequential sampling table and sequential sampling chart for prevention and treatment of pesticides in spring and autumn.