论文部分内容阅读
兰花是我国的传统名花,以其绝妙的花形,优美的叶态和清雅的香味,为人们所喜爱。自古是装饰家庭、美化生活的理想花卉。但在莳养过程中如果管理不善,使会遭受到病虫的危害,而降低其观赏价值,甚至死亡。常见的病虫害主要有:一、介壳虫(俗称兰虱):一般以盾介和粉介最常见。每年4-10月为发生期,冬季也偶有发生。常寄生于叶基部V形槽内以及兰叶边缘,吸食兰叶汁液,使为害点失绿呈黄色斑点,造成植株衰弱,影响观赏。严重时使叶片布满斑点,以致枯死。
Orchid is our country’s traditional flowers, with its wonderful flower-shaped, beautiful leaves and elegant fragrance, for people’s favorite. Since ancient times is to decorate the family, landscaping ideal flower. However, if they are poorly managed during their cultivation, they will be endangered by pests and diseases, reducing their ornamental value and even death. Common pests and diseases are: First, scale insects (commonly known as blue lice): the general shield mediated and powder is the most common. April to October each year for the occurrence of winter occasionally occur. Often parasitic in the V-groove at the base of the leaves and the edge of the leaves, smoking Lan Ye juice, make the damage point green yellow spots, resulting in plant weakness, affecting ornamental. Serious leaves full of spots, so dead.