The larvae of Spodoptera frugiperda Yang Yue provides a map
In January of this year, a pest originating in the American continent invaded China through Burma, and its name was called Spodoptera frugiperda. After being discovered for the first time in Yunnan, the grasshopper moth quickly spread to Guangxi, Guizhou, Guangdong and other places. On June 18, the city first discovered such pests in Wangcang County, and as of now, all counties and districts in the city have discovered. What are the hazards of Spodoptera frugiperda? How to identify? What monitoring and prevention measures have the city done?White spot. A generation of Spodoptera frugiperda is divided into four stages: adult, spawning, larvae and pupa. Up to now, the city has only found larvae on corn plants, and no adult, eggs and mites have been found. Yang Yue, deputy director of the Plant Protection and Quarantine Station of the Municipal Agricultural and Rural Bureau said.
How to identify the larvae of Spodoptera frugiperda? Yang Yue said that the larvae are characterized by a "Y" line on the head of the larvae and four square spots on the tail. When Spodoptera frugiperda is still a young larva, after feeding the mesophyll on the corn leaves, the leaf epidermis is left to form a translucent film-like "window", which can cause holes of different sizes on the leaves, and can also drill the ears and The ear stalk is harmful, threatening the safety of autumn grain production.If the restrictions are not met and the defense is not ruled, the farmers can purchase the drugs themselves according to the instructions.
In addition, adults of Spodoptera frugiperda fly fast and hatch larvae for 2 to 6 days. At present, the city has won 390,000 yuan of provincial-level disaster relief funds, and established 300 monitoring and warning points in the high-risk areas of corn and rice grasshoppers, using insecticidal lamps to trap. Yang Yue said that in addition to the funds for the province, the local finance of the counties and districts also invested in the monitoring and prevention funds of the grasshopper moth. In the next step, we will also strive for central disaster relief funds.xx