What is the assessment content of forest disease prevention?

The policy of forest pest control is "prevention first, scientific prevention and control, management according to law, and health promotion".

The responsibility system for forest pest control is "who operates, who controls".

Their duty is to inspect the pests and diseases of forest crops and report and control them in a timely manner!

Specifically, it depends on whether the goods are agricultural products or forestry products;

2. Provide a valid "Origin Quarantine Certificate" or "Origin Quarantine Investigation Form" for one transportation;

3. Inter-provincial transportation shall provide the "Plant Quarantine Requirements" of the agricultural and forestry quarantine department of the place of transfer;

Second, the transportation shall provide the original "Plant Quarantine Certificate" or on-site quarantine that has been verified by the local agriculture and forestry;

4. The county-level acceptance of the agriculture and forestry department after the application for the "plant quarantine certificate" plant quarantine certificate is generally issued by the agriculture and forestry department, and the general process is generally.

1. Obtain from the county-level agriculture and forestry department and fill in the inspection form by the owner of the goods.

Pathogenic organisms or abiotic factors such as poor meteorology and soil cause pathological changes in the physiology, organization and morphology of forest trees. It can lead to poor growth, yield and quality, and even cause tree death and deterioration of ecological conditions.

Diseases have destroyed large areas of forest from time to time in forestry. For example, since the chestnut blight was introduced to North America around 1904, it destroyed the equivalent of about 54 million acres of pure chestnut forest in the United States in less than 40 years, making it difficult for a tree species with high economic value to continue to be used for afforestation. The pine blister rust epidemic in North America in the early 20th century caused a large number of deaths in the American five-needle pine in the region, and there is still no proper control method.

Since the 50s, the disease has also spread in Korean pine (see pine) plantations in northeastern China, with a mortality rate of more than 40 in some stands, and is spreading day by day. In addition to economic losses, the damage caused by forest diseases to the human living environment also deserves attention. Since the 20th century, many large cities in Europe and the United States have damaged the urban ecological environment due to elm trees in streets and gardens infected with elm disease.

Research on forest diseases was carried out earlier in Germany. 1874 German RHartig's Textbook on Forest Diseases is the world's first monograph on forest diseases.

Most of the research on forest diseases in many other countries, such as the United Kingdom, the United States, Japan, and Russia, began in the late 19th and early 20th centuries. At that time, several devastating diseases such as pine blister rust, chestnut blight, and elm holland disease, which were prevalent in Europe and the United States and caused heavy losses, promoted the study of the occurrence law and control methods of forest diseases. In the decades after the Second World War, forest disease research has developed rapidly, and great progress has been made in disease ecology, physiology, disease resistance breeding, and other control theories and technologies.

China's forest disease research and control work was carried out relatively late, and large-scale investigation, research and productive control work only began in the mid-50s.

Forest pest control.

There are two contents of the quarantine station, one is pest control (including monitoring and early warning); The first is the internal plant quarantine. From the pest control belongs to the public welfare category, from the plant quarantine and belongs to the administrative supervision and management category, this classification depends on the requirements of the personnel establishment department and the actual division, if it involves public participation, for the time being, it is more advantageous to set the administrative management category!

The specific situation is analyzed on a case-by-case basis, but the pesticides used in forestry are generally highly toxic and high-residue pesticides. The forest environment is complex, and there are many diseases and pests in plantations, and it is difficult for natural forest diseases and pests to run rampant.