粤东温室蝴蝶兰有害生物调查及发生规律分析

The Investigation and Analysis on Occurrence Rule of Phalaenopsis Pests in the Greenhouse of Eastern Guangdong

通过对温室蝴蝶兰有害生物的调查,发现危害蝴蝶兰的斜纹夜蛾、介壳虫、螨类、粉虱、蓟马、蜗牛以及病毒等是出口值得关注的有害生物,同时发现鳞长跳虫对蝴蝶兰根部的危害和太平洋细须螨的传入扩散;蝴蝶兰的细菌性褐斑病和眼蕈蚊在粤东危害较为严重,尤其要重点预防。由于温室栽培过程高温高湿,有害生物常年发生,其中虫害发生不规则,细菌性和真菌性病害多以夏季及初秋发生较为严重,而病毒应以防止感染传播为主。

In this article, an investigation on the pests of greenhouse Phalaenopsis was conducted and found that pests like Spodoptera litura, scale insects, mite, whitefly, thrips, snails and virus infest Phalaenopsis and need to be paid attention when exported. It is also found that the infestation of Lepidocyrtus on the root of Phalaenopsis and the introduction of Tenuipalpus pacificus has been spread.The diseases of bacterial brown spot and Sciaridae on Phalaenopsis are much more serious in the east area of Guangdong, and the preventions were needed especially. As greenhouse is always kept at high temperature and humidity, pest occurs frequently but irregularly. For instance, Bacterial and fungal diseases are serious during summer and early autumn. So it is very important to prevent the infection and the spread of virus.