On March 11, the Forestry and Grassland Bureau of Jilin Province launched the "Emergency Response Plan for Major Sudden Forest pest Disasters in Jilin Province", adopting the emergency response measures of "aircraft prevention and control as the mainstay, ground prevention and control as the supplement, and pollution-free prevention and control", timely carrying out emergency treatment of the pine caterpillar disaster that occurs in the province, rapidly reducing the population density of pine caterpillars, and strictly preventing the disaster situation from being derived into a disaster.
Pine caterpillar is the main leaf-eating pest that harms pine trees (including larch, korean pine, sassafras pine, oil pine, red pine, long white pine), if the control is not timely, it will eat up the conifers of a large area of pine forest in a short period of time, which can lead to the direct death of evergreen pine trees that year, larch can lead to indirect death for 2 consecutive years, once the outbreak becomes a disaster, it can cause subsequent ecological disasters such as large-scale death of pine forests, seriously threatening the safety of forest ecosystems, causing economic losses and ecological impacts are very huge.
According to the survey results of the forestry department of Jilin Province in October 2018, in addition to the Baicheng area, a total of 64 counties (cities, districts, bureaus) in other areas of the province have found disasters to varying degrees, and the distribution area of insects has reached 4.85 million mu, accounting for 28.2% of the total area of 17.2 million mu of pine forests that should be investigated. Among them: the distribution area of low insect population is 2.42 million mu, and the occurrence area is 2.43 million mu. At present, the Changbai Mountain Protection and Development Zone and the Helong Forestry Bureau, which are the most serious disasters in Jilin Province, have reached an area of more than 300,000 mu, exceeding the level of extraordinarily large disaster early warning.
In response to the disaster situation, Jilin Province actively responded, strengthened organizational leadership, refined prevention and control measures, and orderly promoted the emergency handling of the pine caterpillar disaster.
The first is to improve emergency funds and material reserves.
The second is to organize and carry out disaster investigations. The host pine forests that need prevention and control operations in the spring are implemented one by one on the forest phase map, and the regional scope of aircraft prevention, ground prevention and control, and prevention and avoidance areas is clarified, so as to lay a good foundation for comprehensive prevention and control. At the same time, it is necessary to fully track and monitor the insect situation of low insect population forest branches, and provide detailed data for the implementation of biological control measures such as red-eyed bees and white zombies in July and August. From the beginning of October to the middle of November, after the pine caterpillar larvae overwintered, a special survey was carried out on the host pine forest in the province to provide a basis for next year's control operations.
The third is to fully implement prevention and control measures. Adhere to the aircraft prevention and control as the mainstay, ground control as a supplement, targeted adoption of pollution-free drug control, red-eyed bee biological control, white zombie biological control and other comprehensive measures, strictly prevent "insect situation into disaster situation" and "disaster situation derived into disaster", to minimize losses. Control efforts are mainly carried out in two phases: concentrated outbreaks from early May to early June and from mid-July to the end of August. Governments at all levels and relevant units that adopt aircraft prevention and control operations should fully prepare for aircraft prevention and control operations, purchase or sign contracts for prevention and control operations in advance, and conscientiously design aircraft prevention and control operations. In the process of aircraft prevention and control, within 500 meters of residential areas, water sources, bee farms, silkworm farms, fish ponds, etc., flight prevention and avoidance areas are set up, and the ground pollution-free prevention and control operations are implemented in this area to ensure the safety of the people's production and life.
The fourth is to comprehensively implement joint prevention and joint management. The occurrence of this disaster involves inter-provincial, inter-regional, and inter-county adjacent and staggered areas, and it is necessary to fully do a good job in information communication and prevention and control measures to carry out simultaneously, and effectively establish a joint prevention and joint management work mechanism. It is necessary to strengthen communication with the forestry and grassland departments of Heilongjiang and Liaoning provinces, inform Jilin Province of its emergency handling practices for disasters, and jointly implement disaster prevention and control in counties at the junction of the two provinces. Between regions, counties, townships and forest farms in the province, it is necessary to comprehensively strengthen the communication of information on disaster situations and emergency response, carry out unified design and unified operation of forest stands for the prevention and control of forest stands at the junction of cities and counties, comprehensively implement joint prevention and joint management, and strive to ensure that there are no blind spots and full coverage of prevention and control work. (Wei Jing, East Asia Economic and Trade News Reporter Wang Lu)