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广东怀集张文秀答:兜兰介壳虫常见于兜兰的茎干、叶片边缘或叶背,以刺吸式口器吮吸植物汁液,轻者使该器官变黄老化,影响兰株生长,严重时出现枯叶、落叶,直至全株死亡。防治方法以预防为主,日常管理应特别注意环境通风,避免过度潮湿。少量发生时,可用软刷轻轻刷除虫体,再用水冲洗干净。在其若虫孵化不久、尚未形成蜡质壳时,可用40%乐果或氧化乐果乳
Guangdong Huaiji Zhang Wenxiu A: Paphiopedilica insects common in the stems of Paphiopedral, leaf edge or leaf back to suck mouthparts suck plant juice, the light of the organs of aging yellow, affecting the blue plant growth, serious Dead leaves, leaves, until the whole plant died. Prevention methods to prevention, daily management should pay special attention to environmental ventilation, to avoid excessive moisture. When a small amount occurs, you can use a soft brush to remove worms gently, and then rinse with water. In its nymphs hatch soon, not yet formed waxy shell, available 40% dimethoate or omethoate