How to control American white moth and spring inchworm? What kind of medicine should I take? Attached work implementation Plan of Rongcheng County

American white moth and spring inchworm harm many kinds of broad-leaved tree species, so how to control American white moth and spring inchworm? What kind of medicine should I take? To this end, the Rongcheng County government issued an implementation plan for the control of white moths and spring inchworms in the United States in 2018. For American white moth, matrine, diflubenzuron, avermectin and other biological agents are the main biological agents, and high-efficiency and low-toxic chemicals such as cypermethrin, imidacloprid and methamectin are properly selected.

Implementation Plan for the Control of American White Moth and Spring inchworm in Rongcheng County in 2018

American white moth and spring inchworm are the main forestry pests in our county, harming poplar, willow and other broad-leaved tree species, with the characteristics of large reproduction and explosive disaster, which seriously affect the landscape effect and the normal growth of trees. In order to do a good job in the control of American white moth and spring inchworm, and to ensure the ecological safety of forest resources in the whole county and the thousand-year-old forest in Xiongan New area, this plan was formulated according to the reality of our county.

I. guiding ideology

Adhere to the policy of "giving priority to prevention, scientific prevention and control, governance according to law, and promoting health", follow the principle of "highlighting key points, regional governance, territorial responsibility, joint prevention and control", and take comprehensive prevention and control measures. effectively curb the occurrence and harm of American white moth and spring inchworm, ensure ecological security, and promote sustainable economic and social development.

II. Objectives and tasks of prevention and control

(1) Prevention and control targets

The prevention and control rate reached more than 95%. On both sides of the traffic trunk line and around the Millennium Xiulin, the average leaf preservation rate was more than 95%. On the four sides of the village and other areas, the average leaf preservation rate was over 85%.

(2) Prevention and control tasks

In 2018, it is estimated that the occurrence area of American white moth is 35000 mu and that of spring inchworm is 25000 mu. In the whole year, 75000 mu of control are planned, including 35000 mu of aircraft spraying and 40, 000 mu of comprehensive control on the ground.

(3) key areas

First, around the Millennium Xiulin in Xiongan New area; second, the green belts on both sides of the highway above the county level, such as Jinbao Expressway, Jinbao Highway, Jinbao High-speed Railway, Jingshi High-speed Railway, Rongxiong Highway, etc.; third, both sides of the Baigou diversion River, Nanjuma River and other rivers and canals; fourth, around the county seat and large-scale forests with a continuous area of more than 1000 mu.

III. Technical measures for prevention and control

(I) Monitoring and census measures

1. Fixed-point monitoring. The county set up 10 fixed monitoring points, hanging 10 trapping lights, from late March to early October, fixed points, fixed people, responsible for carrying out year-round fixed-point monitoring. The time and quantity of occurrence were monitored to provide scientific basis for prevention and control.

two。 A general survey of the epidemic. The combination of professional investigation of forestry department, investigation of rural inspectors and reporting of epidemic situation by the masses should be adopted. The competent forestry authorities shall organize a comprehensive general survey of the epidemic situation, especially around the Millennium Xiulin, along the traffic line, and large-scale forests as the key investigation areas, so as to find out the bottom number of the epidemic situation, accurately grasp the trends of the epidemic situation, and take timely prevention and control measures.

(2) Technical measures for prevention and reduction of disasters

1. Artificial physical control

⑴ American white moth

Pupae digging: in the American white moth after overwintering to spring Eclosion, organize and mobilize the masses to dig pupae to reduce the number of insect population.

Cut off the net screen: before the spread of each generation of American white moth larvae (before the 3rd instar), organize and mobilize personnel to cut off the net screen with high branches and burn it centrally so as to reduce the population density.

Grass handle trapping: making use of the characteristics of pupation of the mature larvae of the American white moth under the tree, the old mature larvae were loosened with grain straw, rice straw and straw curtain at about 1.5 meters from the ground before the old mature larvae went down to the tree, and the mature larvae were pupated. The straw handle was changed every other week, and the straw handle together with the old mature larvae was destroyed.

Light trapping: using the phototaxis of American white moth adults, using insecticidal lamps to trap and kill adults.

⑵ spring inchworm

Before the emergence of spring geometrid adults, the control methods such as poison ring, plastic belt and sticky insect glue were used.

Smear poison ring: scrape off the old bark at 1.5m of the trunk to form a 20cm wide ring. When shaving, pay attention to be smooth and do not leave grooves, but do not hurt the new bark. Then the mixture was prepared with waste engine oil, cypermethrin and edible oil at the ratio of 30 ∶ 1 ∶ 0.25, and a 10-15cm wide ring was coated around the tree trunk with a hairbrush to kill adults.

Apply sticky glue: first scrape the bark, and then apply sticky glue. The width of the glue ring is 5-10 cm, which can effectively kill the female adults and larvae of the tree.

Plastic ring barrier: wrap a circle of plastic ring or tape with a width of 8-10 cm at about 1 meter of the trunk. The lower edge of the tape is close to the trunk, which can effectively block the female adults and larvae of the tree.

two。 Chemical control

Environment-friendly and ecologically safe agents were selected, mainly biological agents such as matrine, diflubenzuron and avermectin, while high-efficiency and low-toxic chemicals such as cypermethrin, imidacloprid and methamectin were selected. In the process of pesticide application, the operation should be strictly standardized to avoid environmental pollution and human and animal injury. ⑴ aircraft spray prevention and control: 35000 mu of flight prevention operations for the surrounding areas of Millennium Xiulin, highways, railways, both sides of highways at and above the county level and other key ecological forest areas. ⑵ ground spraying control: in the American white moth, spring ulna egg stage, larval stage, especially before the spread of the third instar larvae, ground spraying control was carried out in the areas outside the flight defense zone and in the areas with sporadic distribution of forest resources and flight obstacles with poor clearance conditions. ⑶ smoke control: smoke control by fog machine can be adopted in forest areas with high canopy density, and control agents can be cypermethrin and dichlorvos smoke agents; generally choose to release smoke in the early morning and evening without wind to fumigate the first instar larvae, the longer the poison fog stays in the canopy, the higher the insecticidal efficiency, and the general control effect can reach more than 98%.

IV. Safeguard measures

(1) organizational guarantee

In order to strengthen the leadership over the prevention and control of white moth and spring inchworm in the United States, the county government set up a leading group for forestry pest control in Rongcheng County, which is headed by the head of the county government. as members, the heads of relevant departments such as agriculture, finance, residential construction, water conservancy, transportation and road maintenance work areas are responsible for organizing and coordinating pest control work and solving major problems in the prevention and control work. The leading group office is set up in the County Agriculture Bureau. The director of the Bureau of Agriculture is the director of the office.

All townships and townships should also establish and improve leading institutions, with the head of the township as the group leader, the head in charge of the township as the deputy head, and the person in charge of the township station and the director of the village committee as members, responsible for the organization and coordination of the prevention and control of American white moths and spring inchworm in the area, publicity and promotion, census and control, and other work.

(2) system guarantee

1. We will implement the responsibility system at various levels. All township and township governments and relevant departments directly at the county level should put the prevention and control of American white moths and spring inchworms on the agenda, implement the administrative leadership responsibility system, and earnestly strengthen leadership over the prevention and control work. The main leaders personally deploy and take overall responsibility; the leaders in charge personally supervise and coordinate, and command on the spot; in accordance with the principle of territorial responsibility, delineate the responsibility area at various levels, define the responsible person, and sign the certificate of responsibility. The county agricultural bureau should be a good adviser to the government, do a good job in monitoring and investigating the epidemic situation, formulate prevention and control implementation plans, strengthen technical guidance, supervision and inspection, and do a good job in the reserve and supply of emergency prevention and control materials; departments such as transportation, housing and construction, water conservancy, and road maintenance work areas should be responsible for the prevention and control tasks in the system in accordance with the unified prevention and control requirements of the county government.

two。 Establish a joint defense cooperation system. All townships and townships and relevant departments should jointly prevent and control the working mechanism, strengthen coordination and cooperation, timely inform information, and carry out cross-regional joint prevention and control.

3. We will replace compensation with awards and improve the contract system for prevention and control. The focus of the control of white moths and spring inchworms in the United States is at the township and village levels, and it is necessary to actively guide, encourage, and support economic organizations of different forms of ownership, prevention and control teams, and prevention and control companies to participate in prevention and control contracts, sign contracts for prevention and control, and cash prevention and control fees according to control effectiveness inspection.

4. Establish the system of inspection and acceptance and notification of rewards and punishments. The leading group of forestry pest control work in the county shall organize and formulate the inspection and acceptance plan, adopt the method of self-inspection in villages and towns and joint inspection in the county, and report the inspection results regularly. Units and individuals that have made remarkable achievements in prevention and control work shall be commended and rewarded; if the organization leads poorly and fails to implement prevention and treatment measures, resulting in heavy losses and adverse effects, the relevant responsible persons shall be investigated according to law.

(3) capacity guarantee

1. Strengthen the building of prevention and control teams. To set up professional prevention and control teams in counties and townships, in combination with mass prevention and control, to undertake large-scale prevention and control operations in key areas and administrative areas; traffic, residential construction, water conservancy, road maintenance and other relevant responsible units, according to prevention and control tasks, set up professional prevention teams, be responsible for the prevention and control tasks in the system, identify the responsible person, and sign a certificate of responsibility. One or two inspectors should be set up in each village to be responsible for the investigation and control of insect pests within the village.

two。 Increase investment in prevention and control. The prevention and control of American white moth and spring inchworm should be included in the category of social disaster prevention and reduction, and county finance should further increase the investment of prevention and control funds to ensure the smooth development of prevention and control work. At the county and township (town) levels, prevention and control material reserves should be established respectively, a detailed list of material reserves should be compiled, and the demand and proportion of material reserves should be calculated according to the insect situation. At the same time, according to the input mechanism of "who manages, who will prevent and cure", multi-channel and multi-level preparatory funds should be mobilized to mobilize management units and major afforestation households to actively eliminate and control them.

(4) publicity and protection

Make full use of television, radio, newspapers and other media to publicize the serious harm of American white moth and spring inchworm and the significance of prevention and control work, and publicize the technical knowledge of investigation and prevention. At the same time, various forms such as organizing propaganda vehicles and issuing publicity materials are adopted to carry out propaganda activities in rural areas to enhance the initiative and enthusiasm of the whole society to participate in the investigation and prevention work.

March 20, 2018