根据在奉化市观察,发现板栗球蚧一年发生一代,以若虫在板栗枝条的裂缝、叶痕、芽基处越冬,3月下旬出现成虫, 4月下旬产卵,5月初开始孵化,孵化盛期在5月10日左右,危害虫态为若虫、成虫,危害时期若虫5～10月,成虫3～4月,固定在枝干、叶背面吸食汁液,11月越冬,雌成虫平均产卵900粒左右。防治方法: According to the observation in Fenghua City, it was found that the generation of chestnut scales year after year to nymphs chestnut branches cracks, leaf marks, bud base at the end of winter, adults in late March, spawning in late April, hatch in early May hatch On May 10 or so, the insect pests are nymphs and adults, and nymphs of the damage period are from May to October. The adults are from March to April. They are fixed on the branches and the back of the leaves is sucked in juice. In November, the average number of female adults lay eggs 900 About grain Prevention methods: