朝鲜球坚蚧的高发期来临，园林人做好准备了吗？

春季是介壳虫发生的季节，常常刺吸植物茎、叶及幼嫩组织，其中，有一种名为朝鲜球坚蚧的介壳虫，成虫呈褐色卵圆或椭圆形，在4到5月份是该虫的高发期，园林中要注意防治！

【1】朝鲜球坚蚧的识别：

卵椭圆形，附有白蜡粉，初白色渐变粉红。                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         

初孵若虫长椭圆形，扁平，长0.5毫米，淡褐至粉红色被白粉；固着后体侧分泌出弯曲的白蜡丝覆盖于体背，不易见到虫体。

越冬后雌雄分化，雌体卵圆形，背面隆起呈半球形，淡黄褐色有数条紫黑横纹。雄体瘦小椭圆形，背稍隆起，赤褐色。

【2】发生与危害规律：

3月中旬开始从蜡被里脱出另找固定点，而后雌雄分化。雄若虫4月上旬开始分泌蜡茧化蛹，4月中旬开始羽化交配，交配后雌虫迅速膨大。5月中旬前后为产卵盛期，卵期7天左右；5月下旬至6月上旬为孵化盛期。全年4月下旬至5月上旬危害最盛。

【3】防治两大方案：

朝鲜球坚蚧发生前或初期，可使用淇林根除蚧根施长效防治。

在害虫发生时可使用淇林齐伐喷雾防治，注意喷匀喷透。