1, crop diseases, such as rice blast, sheath blight, damping off, false smut, moire and bacterial blight; The main pests are Chilo suppressalis, Chilo suppressalis, rice planthopper, rice locust, rice leaf roller, rice thrips, rice miner and rice hailstorm.
2. Forest pests and diseases. At present, the "top ten" pests that are seriously harmful are Dendrolimus punctatus, Hyphantria cunea, poplar stem borer, pine wood nematode, Japanese pine scale, pine cone scale, slash pine mealybug, big bag moth, pine sawfly and forest mouse.
3. Forest fire refers to the behavior that forest fire is out of human control, spreads and expands freely in woodland, and brings certain harm and loss to forest, forest ecosystem and human beings. Forest fire is a kind of natural disaster with strong suddenness, great destructiveness and great difficulty in disposal and rescue.
Government's measures to deal with plant disasters;
1. In view of the backward prevention and control technology, poor early warning ability and weak applied basic research in China, this paper focuses on analyzing the new challenges faced by biological disaster reduction research in China. It is necessary to strengthen investment, carry out research on the mutation law of major pests and diseases, medium and long-term prediction and key technologies of integrated control, and attach importance to the application research of high and new technologies.
2. Forest diseases and insect pests can be comprehensively managed:
(1) Pests should survive at the population density allowed by human economy.
(2) Management aiming at ecological balance.
(3) Maximize the use of natural control factors.
(4) The use of any means of prevention and control may bring side effects.
(5) It must be analyzed from the viewpoint of systematics.
3. For forest fires, we should adhere to the basic principle of "strike early, fight small and fight". 1988+65438 "Regulations on Forest Fire Prevention" issued by the State Council on June 6th stipulates that the policy of "prevention first, active elimination" shall be implemented in forest fire prevention. Forest fire prevention work shall be under the administrative leadership responsibility system of the people's governments at all levels. All units in the forest area shall, under the leadership of the local people's government, implement the leadership responsibility system of departments and units. It is the duty of every citizen to prevent and extinguish forest fires and protect forest resources.