What pesticides are used to control iron tree insects?

It's not that the iron tree has to use what pesticides to prevent and control insects, but it mainly depends on what kind of insects she has born? Different insects should use different pesticides, like the ordinary insecticide, all kinds of insecticides, you try one first!

Summary. Hello dear, glyphosate herbicide can be sprayed on the foliar surface. Pouring salt water on the roots of a tree will cause the tree to fall off.

Frequent watering of concentrated brine on the roots of the tree, which can make the soil salinized, affect the absorption capacity of the plant's roots, and make its roots appear dehydrated, and soon disappear. If you want to use pesticides to dry up the tree, you can choose organophosphorus, which is insoluble in water, and you can add some alkali to the water.

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Hello dear, glyphosate herbicide can be sprayed on the foliar surface. Pouring salt water on the roots of a tree will cause the tree to fall off. Frequent watering of concentrated brine on the roots of the tree, concentrated brine can make the soil salinized, affect the absorption capacity of the root system of the plant, make its root system appear dehydrated, and the imitation tomb will soon disappear.

If you want to use pesticides to dry up the tree, you can choose organophosphorus, which is insoluble in wild water, and you can add some alkali to the water.

1. Scale insects: during the serious damage of scale insects, they can be sprayed with 750-1000 times of liquid, and the liquid medicine is absorbed by the tree, and the scale insects will be poisoned and die after sucking the toxic juice; In high temperature, dryness, poor ventilation, scale insects are more harmful, can be sprayed with 50% dimethoate emulsion or 50% monocrotophos or 80% dichlorvos emulsifiable concentrate 1000 times. 2. Little Gray Butterfly:

1000-1500 times of 21% emulsifiable concentrate, 800-1000 times of 20% chrysanthemum emulsifiable concentrate, 2500-3000 times of 5% lyferin, 2000-3000 times of 5% cypermethrin and other sprays.

1. What pesticides are used to prevent and control iron tree insects?

1. Scale insects.

1) A small number of sporadic scale insects can be removed with old brushes and small brushes, and stone sulfur mixture or fluoroacetium can also be sprayed during the incubation period.

2) Soak rice vinegar with a cotton ball and gently wipe the damaged leaves, which can wipe off the scale insects and kill them, and can also make the leaves green and bright again.

3) Mix water with liquor at a ratio of 1:2, water the topsoil of the pot, water it once every half month, and it can be effective for 4 times in a row.

4) Repeatedly rubbing the infested leaves with alcohol can kill adults and larvae.

5) In the serious damage period of scale insects, the scale can be sprayed 750-1000 times the liquid, the liquid medicine is absorbed by the tree, and the scale insects will be poisoned and die after sucking the poisonous juice.

6) In high temperature, dryness, poor ventilation, scale insects are more harmful, can be sprayed with 50% dimethoate emulsion or 50% monocrotophos or 80% dichlorvos emulsifiable concentrate 1000 times.

2. Little Gray Butterfly:

1) 21% killing emulsifiable concentrate 1000-1500 times liquid spray.

2) 20% chrysanthemum emulsifiable concentrate 800-1000 times liquid spray.

3) 5% Lyflu 2500-3000 times liquid spray.

4) 5% cypermethrin 2000-3000 times.

5) 48% Lesben EC2000 times solution.

6) Prevention should also be strengthened, debris in the pot should be removed in advance, the source of overwintering insects should be eliminated, and spraying in advance should be paid attention to prevention during the high incidence period.

2. What is the cause of iron tree insects?

1. Iron tree insects are likely to be poor ventilation of the plant growth environment, air circulation or hot and humid, which provides a better growth environment for pests, so when preventing iron tree insects in the later stage, it is necessary to ventilate the plant regularly to improve the ventilation of the plant growth environment, so that the plant can resume normal growth as soon as possible.

2. In the hot summer, scale insects are easy to breed on iron trees, and they gather on the leaf surface, looking like white spots. Scale insects will absorb nutrients from the branches, causing the leaves to turn yellow, and in severe cases, lead to stunted development, weakened trees, and even the death of the whole plant. When maintaining, it is necessary to avoid exposure to the sun to prevent the leaves from yellowing and scorching.

Prune in time, after the iron tree is insected, it is necessary to prune off the leaves with serious insect pests in time, and spray carbendazim solution to eliminate spring and poison; Spraying agents, if the insect infestation phenomenon is more serious, it is necessary to spray the diluted chlorothalonil solution**; Ventilation, in order to avoid the recurrence of insects on the leaves of the iron tree, it is necessary to open the windows for ventilation in the morning and evening during later maintenance to reduce the breeding of bacteria.

After insects are born on the iron tree, it needs to be pruned in time. Use sterilized sharp scissors to prune off leaves that are heavily infected with insect pests to prevent insect infestation from affecting other healthy leaves. After pruning, the wound should be disinfected by applying carbendazim solution so that the wound can heal as soon as possible.

After the leaves of the iron tree are infested by insects, they can also be killed by spraying an appropriate amount of diluted chlorothalonil solution, and the number of spraying needs to be controlled while spraying the agent.

Iron tree is suitable for growing in a ventilated and breathable environment, if it grows in a dense and impermeable environment for a long time, it will lead to a large number of pests, in order to avoid the iron tree again, it is necessary to open the window for ventilation every morning and evening, with Senzhao to create a comfortable growth environment for the iron tree, so that the iron tree can resume growth as soon as possible.

In order to make the iron tree grow healthily in the later stage of maintenance, after finding that the soil is dry, it is necessary to water and moisten it in time to keep the soil in a slightly moist state. In addition, it is also necessary to apply nitrogen, phosphorus and potassium rich compound fertilizer every half month to accelerate the growth rate of iron trees.

Iron tree disease is manifested as a small light brown spot at the beginning of the leaf infection, and then spread to a similar round or irregular shape, the lesion ** is dark brown to gray-white, the edge is reddish-brown, the lesion is black dots, due to the connection between the lesions, it forms a patch, causing the leaf to die and break.

In high temperature, dryness, poor ventilation, leaves are susceptible to scale insects, control can be removed with a brush brush or timely spray with 50% dimethoate emulsion or 50% monocrotophos or 80% dichlorvos emulsifiable concentrate 1000 times.

Iron tree insects need to be properly pruned after the plant, cut off the part of the plant that suffers from insect infestation, and also need to spray the plant properly to eliminate the residual pests on the plant, and also need to ventilate the plant regularly to improve the ventilation of the plant growth environment, so that the plant can grow healthily.

1. Prune the plants

Iron trees need to be pruned after they are insected. First, you need to choose a sharp lead cutter, and then use scissors to cut off the most affected parts of the plant to prevent the pests from eating more healthy branches and leaves. At the same time, after pruning, it is necessary to apply carbendazim solution to the pruning wound of the plant to help the wound heal as soon as possible.

2. Spray the agent

Iron trees also need to spray the appropriate amount of insecticides for the plant after the insects, to eliminate the pests on the plant, and at the same time need to pay attention to the number of spraying when spraying the plant, generally in the case of serious plant insect infestation, it is best to spray the plant every morning, noon and evening, for about three days.

3. Ventilation treatment

Iron tree insects may be the poor ventilation of the dust environment of the plant growth liquid, which provides a better growth environment for pests, so when preventing iron tree insects in the later stage, it is necessary to ventilate the plant during the Zen period to improve the ventilation of the plant growth environment, so that the plant can resume normal growth as soon as possible.

4. Later maintenance

In the later maintenance of iron trees, it is necessary to provide appropriate water for the plants, keep the soil in a moist state, and also need to provide appropriate nutrients for the plants, improve the growth rate of the plants, and pay attention to the amount of fertilizer when providing nutrients for the plants, so as not to cause fertilizer damage to the plants due to excessive fertilization, and cannot grow normally.

After the insects grow on the iron tree, you can use scissors to cut off the leaves infected with the disease to avoid further deterioration of the situation, you can also spray the diseased area of the iron tree with diluted alcohol to avoid the rest of the healthy branches and leaves from being infected by the disease, and you can also spray 21% killing emulsifiable concentrate on the iron tree to remove the insects on the plant, so that the iron tree grows healthily.

1. Cut off the diseased leaves

Iron trees are susceptible to the erosion of scale insects during the growth stage, which will hide on the back of the leaves of the iron tree and eat the branches and leaves of the plant, so that the iron tree is infected with black spot and other diseases.

2. Spray alcohol

When cultivating iron trees, if you find that there are insects on the plant, you need to immediately manually remove them, you can use a knife to scrape off the pests on the iron tree, or you can mix alcohol and water in a ratio of 1:20, and then put it into a sprayer, spray it 1-2 times every other week to the diseased area of the iron tree.

3. Spray the agent

When breeding iron trees, you need to regularly observe the growth state of the plant, if you find pests on the branches and leaves of the iron tree, you need to kill 21% of the emulsifiable concentrate on the iron tree, so as to avoid the rest of the healthy branches and leaves are infected by the disease, and wait for the leaves of the iron tree to no longer yellow and black, which means that the pests are eliminated.

4. Suitable environment base

If you put it in a closed environment for a long time, it will cause the plant to have pests, you need to open the window every morning and evening to make the indoor air circulate to avoid the iron tree being infected by diseases, and you can also move the iron tree to a ventilated semi-shaded environment, and control the frequency of watering, so that the iron tree grows more vigorously.