What should I do if there are insects in the soil? What to do if the tree grows insects

Common diseases of fortune trees are yellowing and leaf spot. If yellowing occurs during cultivation, foliar spraying can be carried out with ferrous sulfate solution, spraying 2-3 times in a row, with an interval of 10 days each time; If leaf spot disease occurs, it can be sprayed with 1000 times of 75 chlorothalonil wettable powder, sprayed 2-3 times continuously, with an interval of 15 days each time. The common insect pests of fortune trees are scale insects and red spiders, if they occur, they can be sprayed with imidacloprid to kill scale insects, and dicofol can be used to control red spiders.

Small centipedes are not very harmful to the fortune tree, and there are moth larvae that can be killed by Saidan + enemy. Pay attention to safety when using drugs, pesticides are toxic. If it is a tray planting, it is recommended to change the soil, and choose a fertile, well-drained sandy loam.

What questions can be added.

This is a white spider of the pest mite, no spider silk is not strange, because the density is not large enough, at this time the prevention and control is more appropriate, pest mites need special pesticides to prevent and control, such as dicofol, nisolone, mite net and other agents, now the pest mites are more and more resistant, so the effect of general environmental protection control methods is not obvious.

Use soil insects to kill very easy to use cheap on the same day to sell flowers and flower fertilizer are available on the packaging There is a proportion of use on the packaging If it is a flying insect, you can also use a flying insect to clean it with a similar name.

After the tree grows insects, you can apply a whitening agent to the trunk to prevent the pests from continuing to reproduce and grow on the trunk, you can also water the diluted liquor solution into the planting soil to eliminate the eggs and pests in the soil, and you can also buy insecticides directly from the market and spray them on the trees that grow insects to eliminate pests.

1. Apply whitening agent

After the tree grows insects, you can apply a whitening agent to the trunk. Because most of the pests on the tree are hatched from the eggs in the cracks in the bark, after the pests appear, apply a whitening agent to the trunk to prevent the pests from continuing to reproduce and grow on the trunk, so as to achieve the purpose of eliminating the pest.

2. Water the liquor

After the tree grows insects, you can also water liquor on it. First of all, you need to prepare a glass of liquor, mix it with two glasses of water, and then pour the mixed solution in the planting soil, you can eliminate all the pests in the soil, and the roots of the tree absorb the water containing the liquor, which can also improve the resistance to insect pests.

3. Use vinegar

After the tree grows insects, you can also use vinegar on the plant. That is, you can directly use a cotton swab or cotton ball, dip it in vinegar, and apply it to the area where pests are active on the trunk of the tree, and the pests can be eliminated. However, this method is only suitable for trees with a height of less than two meters, and it is not possible to remove pests from tall trees.

4. Spray the agent

The easiest way to do this is to spray the trunk of the tree. First of all, you need to buy a special dimethoate insecticide from the market, then dilute it according to the proportion on the package, spray it on the trunk of the tree, spray it every other week, and after three consecutive times, you can eliminate the pest.

Drug spraying: If the number of insect pests is large, drugs should be used to kill insects, such as imidacloprid, dimethoate EC, trichlorfon, etc. Winter Garden:

After winter, it is necessary to clean up the dead branches, rotten leaves, and weeds, burn them in a centralized manner, and pour frozen water. Whitening the trunk: smearing white lime with water on the trunk can not only be used to kill insects and cracks, but also to prevent insects.

Root irrigation: If the plant is more stuffy and high, you can irrigate the root, such as root irrigation, aphid lice net, root irrigation, borer net and other drugs.

This bug is very common bare-shouldered star beetle. Here's an introduction to this bug:

1. Morphological characteristics.

The body length of the bare-shouldered star longhorn is 17 39 mm, pitch black, with a copper-colored sheen. The dorsal plate of the prothorax is wrinkled and notched, with a spinous protrusion on each side. There are more than a dozen white markings on the wing sheath, and the base is smooth and free of nodulous granules.

2. Habits.

One generation occurs in one year, or one generation occurs in two years. Overwinters with larvae or eggs. When the temperature rises above 10 in April, the overwintering larvae begin to take action. The larval pupation period is from early May to late June.

It takes about 41 days from pupae to adulthood. Adults begin to appear in early June, and peak from late June to late July, with adult activity until October.

Adults begin to lay eggs in mid-June, and the peak oviposition period is between July and August, and the egg period is about 16 days. Larvae begin to appear at the end of June, and by November the temperature drops below 6 and overwintering begins.

3. Geographical distribution.

It is distributed in Liaoning, Hebei, Beijing, Tianjin, Inner Mongolia, Ningxia, Shaanxi, Gansu, Henan, Shanxi, Shandong, Jiangsu, Anhui, Jiangxi, Hubei, Hunan, Sichuan, Shanghai and Zhejiang, Fujian, Guangdong, Guangxi, Yunnan and Guizhou; North Korea, Japanese laughter with Genmoto.

Prevention and control methods. 1. Prevent adult insects: use the habit of fake death to manually hunt and kill. Spray dry with 1059.

2. Prevention and control of eggs and hatched larvae: kill with a hammer; Apply dichlorvos (50 times liquid) or kerosene to the insect area (cavity); Spray dry with 100 200 times of 50% pine molester, 200 400 times of 40% dimethoate EC or 100 200 times of 50% phosphine emulsifiable concentrate, and the amount of spray is until the trunk flows the solution.

3. Prevention and control of large larvae: when the larvae grow up and bury deep into the xylem, use a syringe to inject ammonia into the cavity; 56% aluminum phosphide flakes (1 6 or 1 3 tablets) are placed into the cavities; The poison swab made of zinc phosphide and oxalic acid as the main ingredients is inserted into the cavity and smoked; The cavities of the cavities applied by these methods are well sealed with slime as well.

4. Catch adults at the peak of adult worms.

Take the chaos or the above content reference: Encyclopedia - Bare-shouldered Star Sky Cow.

This is mainly the result of the potting soil being kept moist for a long time.

Prevention and control methods: 1. Water the surface of the potting soil after drying, and do not cover the surface of the pot with organic matter, such as residual tea.

2. Direct spraying of 500 times of 80% dichlorvos emulsifiable concentrate can be eliminated. It can also be sprayed with pesticides such as Xerum fruit and dichloride.

When spraying pesticides, try to be outdoors or on a balcony and do not have children.

A large insect was found in the soil of the fortune tree, is there a problem with the growth of the tree? Now the leaves on the tree are gone!