The research had succeeded in detecting the Citrus Huanglongbing through the hand-sliced method or dot -marked observation by the monoclonal antibody with colloidal gold -labeled (MACG) technique.

• 应用单克隆抗体一胶体金标记技术,采用徒手切片法和斑点试验法检测柑桔黄龙病获得成 功。