八十年代初期,为害茶树的黑刺粉虱,在省、内外均有不同程度发生,幼虫不但吸食茶叶汁液,而且能诱发烟煤病,使用常规农药,难以控制为害。为此省茶科所于1982年开始进行防治研究,筛选出20%速灭杀丁药剂及其有效浓度,通过两年,两处大面积 In the early 1980s, blackthorn whitefly that harmed the tea tree had different degrees in the province, both inside and outside. The larvae not only ingested tea juice, but also induced bituminous coal diseases and used conventional pesticides to control them. For this reason, the Provincial Tea Branch started research on prevention and treatment in 1982, and screened 20% of the immediate-killing and drug-killing agents and their effective concentrations. After two years and two large-scale