What to do with insects in locust wood, and what to do with insects in the trunk of locust trees?

Apply a high concentration of dichlorvos, then close the doors and windows for a day, and finally pull it out to dry it. In this way, it can kill insects, does not hurt the bed board, door, and is harmless to people.

Endophytic insects in the trunk of locust trees, mainly larvae of longhorn beetles, can be controlled with pesticides:

1. You can put 30 50 times 50 times 50 dichlorvos in the new fecal hole of the tree trunk.

Emulsifiable concentrate or 40 cotton balls of dimethoate emulsifiable concentrate, or put in 1 4 pieces of aluminum phosphide, and then seal the insect mouth with mud for killing.

2. It can also be punched in the trunk for prevention and control. For trees with tall canopies and difficult spray control, 40% dimethoate solution and 20% imidacloprid were injected into the trunk.

It can control the adults and larvae of longhorn beetles. The method is to drill an oblique hole deep into the xylem at a trunk 30 cm from the ground, and the dosage is generally milliliter cm DBH. It can also be injected directly from the fecal discharge hole.

3. Whitening the trunk: The eggs laid by the star beetle are mostly in the lower part of the trunk, and the whitening coating (quicklime) can be applied to the trunk.

1 serving: sulfur powder.

1 part: 40 parts of water), which has a taboo effect on adults.

If there are insects in the trunk, you can use pesticides such as organic or vehicles to irrigate the roots, or spray the trunk.

Acacia trees are insected, imidacloprid wettable powder, cypermethrin EC, and trermectin EC.

Locust tree cultivation techniques.

Seedling. Seedlings generally begin to emerge in 7 to 10 days after sowing, and emerge in 10 to 15 days. Mulching plots should be removed when the seedlings have grown 2 to 3 true leaves. When the seedling height is 15cm, the seedlings are interspersed 2 to 3 times, the distance between the fixed seedlings is 10 to 15cm, and the number of seedlings per mu is about 8000.

Transplanting. For greening seedlings, generally 3 to 4 years to emerge from the nursery, because the top of the seedling branch buds dense, ask the short distance, the trunk is very easy to bend, the next spring will be the annual seedling according to the plant spacing 40 to 50cm, row spacing 70 to 80cm transplanting, after planting the trunk can be cut off from the ground 3 to 5cm. Because the locust tree has germination power, it is easy to have a large number of buds after cutting, when the budding shoots grow to about 20cm, select one upright and upward strong branch as the main trunk, and wipe out all the remaining branches.

In the future, pay attention to removing the tillering and removing the side at any time, and temporarily retain the weak side branches in the upper, middle and lower parts of the main trunk, which is beneficial to prevent the main trunk from bending. In this way, the seedling height can reach more than 3 m in the following year.

Fertilizer and water management. The watering of locust seedlings should be determined according to climatic conditions, soil texture and other factors. Under normal circumstances, water 2 to 3 times before the emergence of seedlings and before the rainy season, and water the frozen water once before the nursery is frozen, and drain the water in time in case of waterlogging; Before sowing, the seedling land is applied basal fertilizer (mainly organic fertilizer or circle fertilizer) about 3000kg, and in early June, combined with watering, fast-acting nitrogen fertilizer (such as urea) can be applied 8 to 10kg per mu, and urea is applied in July to August (it is best to mix the appropriate amount of compound fertilizer 12 to 3 times, and the amount of fertilizer is about 30kg each time.

After September, no more watering and fertilization will be applied to promote the lignification of seedlings.

Thinning. It can be arranged into three tree shapes: natural heart shape, cup shape and natural shaft main stem shape according to needs. Natural heart shape is when the main trunk grows to more than 3m when the trunk is fixed, select 3 to 4 branches with strong growth and appropriate angle as the main branch, remove the side branches and buds below the main branch in time, and make a short cut of the main branch when thinning the branches in winter, leaving 50 to 60cm to promote the growth of secondary shoots to form a small crown; The cup-shaped shape is the same as the natural heart shape to leave 3 main branches, in winter thinning on each main branch to leave 2 side branch stubs, forming 6 branches, in summer to carry out topping, control growth, the following winter pruning in the branchlets to select 2 branches on each short pick, forming "3 strands, 6 rights and 12 branches" of cup-shaped shape; The natural axis of the main trunk shape means that after the main branch is left, the branches will be thinned in the future, as long as the strong apical buds and erect buds are retained, and the strong branches at all levels will be cultivated, so that the crown will continue to expand.

How to deal with the locust stick without insects is as follows:

Buy some dichlorvos.

Dosage 1:5 (water: medicine) spray a small amount on wood slightly! It can also be applied with the diesel method, which can be applied two to three times!

How to deal with wood without insects:

1. Paint treatment. For some corners that have not yet been infested by insects, paint such as tung oil or varnish can be brushed to the surface of the wood to make insects bored.

Isolate from the air to achieve the purpose of mothproofing. It should be noted that when painting, the entire wood should be evenly painted.

2. Pharmaceutical treatment. It can be prepared with water in a ratio of 1 5 to make a liquid medicine, spray it fully with a sprayer, let the liquid infiltrate into the wood, spray it 3 times 5 times in a row, and after 8 hours, it can kill all the moths. After that, the wood is washed and dried with water.

3. Wipe with diesel. On sunny days, paint all the wood once with a brush or cotton yarn dipped in diesel. Dry for two or three hours and then apply it once, and then dry it again, until you see the moth dead at the mouth of the hole. Then use laundry detergent.

The liquid can be washed and dried.

You are referring to the "Chinese acacia longhorn", whose larvae often eat on the branches of the Chinese acacia branches, excreting a large amount of wood chips and having a peculiar smell.

This is generally the case for prevention and control:

1. Use a wire hook to dig out the hole and destroy it.

2. Protect woodpeckers.

3. Manually kill adult insects in the adult stage.

4. Use a syringe to inject the original solution of "dichlorvos" or the concentration of the liquid below 100 times the liquid into the cavity, and plug the cavity with yellow mud.

5. Stuff the cavities with a cotton ball soaked in the dichlorvos stock solution, and plug the cavities with yellow mud.

Acacia, also known as Acacia japonica, is a tall tree with pinnate compound leaves similar to that of Robinia pseudoacacia. The flowers are pale yellow and can be cooked and eaten, and can also be used as traditional Chinese medicine or dye. Unopened locust flowers, commonly known as "locust rice", are a kind of traditional Chinese medicine. So, what should I do if the locust tree has worms?

1. What should I do if the locust tree has insects?

Locust trees are insected with medicine. The main insect pests are locust aphid, locust inchworm, armyworm, American white moth, etc., which can be controlled with 10% imidacloprid wettable powder N2000 times and cypermethrin EC 1500 times or trermectin EC 3000 4000 times.

In addition, the weeding of the national acacia nursery is mainly in the seedling field of the year, which can be controlled by manual removal or chemical herbicides, and care must be taken not to spray the pesticides on the trunk when using chemical herbicides.

Second, the main value of locust trees.

1. Garden value.

Acacia japonica is a characteristic tree species commonly used in courtyards, with dense branches and leaves, green shade like a cover, suitable for garden shade trees, and is mostly used as street trees in northern China. It is also suitable for planting in parks, around buildings, in neighborhood residential areas and on lawns. The dragon claw locust should be planted or planted in front of the door, or planted alone next to the pavilion mountain stone.

It can also be used for greening in industrial and mining areas. Summer and autumn can be seen flowers, and for the excellent nectar source plants. Flower buds can be used as dyes, pulp can be used as medicine, and seeds can be used as fodder.

It is also a tree species that is used for windbreak and sand fixation, timber and economic forest, and is a good shade tree and street tree species in urban and rural areas, and has strong resistance to toxic gases such as sulfur dioxide and chlorine. Acacia japonica is also a tree species that can be selected as a mixed forest.

2. The development value of mixed forests of Acacia japonica.

For example, the mixed forest of Acacia sinensis and Acacia sinensis can make full use of the space and nutrient area, can better play the protection benefit, enhance the ability to resist natural disasters, improve site conditions, make full use of land resources and light resources to improve the quantity and quality of forest products, and maximize economic benefits.