As preventive spray plants with systemic insecticide or fumigate them regularly .

作为预防措施，要用 内 吸 杀虫剂对植物定期喷洒，或熏蒸。

A better chemical control method is to smear pesticide on the tree truck branches and twigs and watering with systemic insecticide as a supplementary means .

药液涂干并辅之具 内 吸 作用 的 杀虫 药液灌根是目前较好的药剂防治方法。

disulfoton : a pale yellow highly toxic systemic insecticide CHOPS used for some vegetables and flowers .

“二硫松：一种剧毒的浅黄色 系统 杀虫剂，CHOPS，可用于一些蔬菜和花.”