How can citrus soot disease be removed?

The prevention and control of citrus bituminous coal disease, first of all, to understand its pathogenesis, bituminous coal disease is a fungal disease, the fungus attaches to the surface of the leaves and fruits, feeds on the secretions of aphids, scale insects, whiteflies and other insects, produces black-brown substances on the leaves, and then gradually expands the scope through the reproduction of the fungus, extending to other parts of the fruit tree.

Do a good job of clearing the garden in winter. To remove the soot disease that has occurred, it can also be sprayed with 200 250 times of dichloride emulsion or engine oil emulsion. Or sprinkle lime powder on the leaf surface to make the mold layer fall off.

Citrus soot disease, poor prevention seriously affects growth, do the above things to avoid the occurrence of soot disease.

Summary. Dear, I'm glad to answer for you, citrus soot disease is one of the common diseases on the leaves of citrus trees, which is caused by fungi. In order to prevent and control citrus soot disease, the following measures can be taken:

1.Removal of the source of the disease: remove the leaves, dead branches and dry fallen leaves affected by the disease in time to avoid the spread of the disease.

Managing the canopy: Keeping the citrus canopy well ventilated and light, reducing leaf moisture, helps reduce the chance of sooty disease occurring. 2.

Pruning diseased leaves: When sooty leaves are found on citrus trees, they should be cut and destroyed in time to avoid the spread of the disease. Preventive spraying:

Prophylactic spraying can be carried out with effective fungicides before the peak of the disease to reduce the occurrence of disease. Choose a fungicide suitable for citrus soot disease, spray it according to the recommended dosage and frequency, and pay attention to prevent excessive use of the agent. 3.

Nutrient management: Proper fertilization to maintain the health of citrus trees and enhance their resistance to the invasion of diseases. Pay attention to sufficient nutrients such as nitrogen, phosphorus, and potassium, but avoid excessive fertilization, which can lead to overgrowth and increase the chance of being attacked by diseases.

4.Cyclone sprayer: The use of cyclone sprayer can achieve better spraying effect, which can evenly spray the agent on the leaves of citrus trees and improve the control effect.

5.Regularly inspect citrus orchards to observe and record the health status of citrus trees, and detect signs of disease early so that appropriate control measures can be taken.

What is the prevention and control? How about citrus soot disease.

How about citrus soot disease.

What is the prevention and control? What are the best antifungicides for prevention and control?

Let's introduce the effective agents.

How about citrus soot disease.

What is the prevention and control? How about citrus soot disease.

What is the prevention and control? How about citrus soot disease.

What is the prevention and control? How about citrus soot disease.

Prevention and treatment should be started at the beginning of the disease. Available 0 5:1:

100 (copper sulfate: lime powder: water) Bordeaux liquid spray, or spray with 70% methyl tobuzine wettable powder 600 l 000 times liquid spray, in 6 July to spray 1:

4:400 copper soap is sprayed in mid, late June and early July. Need to buy pesticides and more planting knowledge on the harvest is the best, there are many brands, do not worry about buying inferior products, and can also consult on planting problems.

Summary. Hello, glad to solve it for you, citrus soot disease can try the fungicides with the following ingredients:1

Carbon tetrachloride Carbon tetrachloride is a contact fungicide that can effectively inhibit citrus soot pathogens. Pay attention to the safe dosage when using. 2.

Copper oxide is sprayed with a biocide containing copper oxide, which can play a protective role. However, it is necessary to pay attention to the number of prevention and control, and do not overuse. 3.

Avoiding chigger has a good effect on citrus soot fungus. Appropriate concentrations should be selected. 4.

Tobuzine is an epoxy azo fungicide, which also has a certain effect on the pathogen. 5.Lime sulfur mixture spraying lime sulfur mixture before and after control can inhibit the growth of pathogenic bacteria.

6.Streptomycin can be used appropriately to ** severe citrus soot disease. It is necessary to choose the appropriate fungicide according to the condition.

Citrus soot disease, what fungicide to use.

Citrus soot disease can be used with what composition of fungicides.

Hello, glad to solve it for you, citrus soot disease can try the fungicides with the following ingredients:1Carbon tetrachloride Carbon tetrachloride is a contact fungicide that can effectively inhibit citrus soot pathogens.

Pay attention to the safe dosage when using. 2.Copper oxide is sprayed with a biocide containing copper oxide, which can play a protective role.

However, it is necessary to pay attention to the number of prevention and control, and do not overuse. 3.Avoiding chigger has a good effect on citrus soot fungus.

It should be known to choose the appropriate concentration for use. 4.Tobuzin is an epoxy azo fungicide, which has a certain curative effect on the pathogen.

5.Lime sulfur mixture spraying lime sulfur mixture before and after control can inhibit the growth of pathogenic bacteria. 6.

Streptomycin can be used appropriately to ** severe citrus soot disease. It is necessary to choose the appropriate fungicide according to the condition.

What diseases does Zinc Dyszeb mainly prevent?

Zinc is a zinc-containing fungicide, which can mainly control the following types of plant diseases:1Prevention and control of all kinds of anthracnose, such as wheat, corn, rice anthracnose, etc.

2.Prevention and control of scab, such as rice scab, peach rose scab, etc. 3.

Prevention and control of diseases caused by various types of Verticillium, such as Verticillium leaf spot, etc. 4.Prevention and control of some powdery mildew, such as bean powdery mildew, rice powdery mildew, etc.

5.Prevention and control of bacterial leaf spot diseases such as tobacco bacterial black spot. 6.

Prevention and control of soft rot, such as lack of mating and cabbage soft rot. 7.Prevention and control of anthracnose in fruit trees, such as apples, pears and other anthracnose.

8.Prevention and control of Sclerotinia sclerotinia and so on. 9.

It also has a certain control effect on certain viral diseases, such as tomato tobacco incarcerated virus. Therefore, zebsen zinc has a relatively broad spectrum of control effect, mainly used for the prevention and control of various anthracnose, scab and other common plant diseases. When using, the dosage and method recommended by the instructions should be strictly followed.

<> citrus soot disease should be started at the beginning of the disease, available: 1:100 (copper sulfate:

Lime powder: water) Bordeaux liquid spray, or spray with 70% methyl tobuzine wettable powder 600-1000 times liquid. In winter, it is necessary to do a good job of clearing the garden to remove the soot disease that has occurred, and you can also spray 200-250 times of dichloride emulsifiable concentrate or engine oil emulsion, or sprinkle lime powder on the leaf surface to make the mold layer fall off.

1. What medicine is good for citrus soot disease

1. Citrus soot disease must be prevented and treated in the early stage of the disease. You can use: 1:

100 (copper sulfate: lime powder: water) Bordeaux liquid for spraying, you can also use 70% methyl tobuzin wettable powder 600-1000 times liquid for spraying, in June and July to change to spray 1:

The copper soap at 4:400 can be sprayed once each in mid and late June and early July.

2. In winter, it is necessary to do a good job of cleaning the garden to remove the soot disease that has occurred, and you can also use 200-250 times of dichloride emulsion or engine oil emulsion for spraying, or directly sprinkle lime powder on the leaf surface, which can make the mold layer fall off.

2. Symptoms and causes of citrus soot disease

1. Symptoms of citrus soot disease.

1) Citrus soot disease will generally harm leaves, branches and fruits, in the early stage of the disease, the surface of the affected part will appear black or dark brown mold layer, and then gradually expand to form a soot-like black mold layer, and the mold layer will be scattered with black dots (closed cyst shell or sporator).

2) When it harms the leaves, it will generally produce gray-black coal stain on the leaves, which will affect the photosynthesis of the leaves and cause the tree to weaken.

3) When harming young fruits, it will cause young fruits to rot and fall off, and when harming ripening fruits, it will lead to fruit color difference, sour taste, and a decrease in the rate of commercial fruits.

2. Causes of citrus soot disease.

1) The sooty disease fungus mainly overwinters in the diseased part with mycelium, ascomycetes and conidia, etc., and the spores will reproduce in the spring of the second year, and rely on wind and rain to spread, and use the honeycome secreted by aphids, scale insects, and whiteflies as nutrients for growth and reproduction, which is harmful.

2) In orchards that are generally not regularly managed, planted too densely, with tall plants and too much nitrogen fertilizer, soot disease occurs more often.

3) The disease harms leaves, branches and fruits, and can occur throughout the year, and the peak period of the disease is from May to September, and mid to late August is the critical period for the damage of the fungus to fruit.

Citrus is a very common fruit, many farmers in the south will plant, it is easy to get coal stain disease, also known as Bu Yinsui soot disease, will harm the leaves and fruits, need to be prevented and controlled in time.

What are the citrus coal pollution prevention and control agents? What kind of medicine is used? Here's what I'll do for you.

Citrus is a very common fruit, many farmers in the south will plant, it is easy to get coal stain disease, also called soot disease, will harm the leaves and fruits, need to be prevented and controlled in time.

What are the citrus coal pollution prevention and control agents? What kind of medicine is used? Here's what I'll do for you.

1. Citrus coal pollution disease prevention and control agents.

Citrus coal stain disease in the early stage of use: 1:100 (copper sulfate:

Lime powder: water) or spray with 70% methyl tobuzin wettable powder 600-1000 times, and spray 1:4 in June-July

400 copper soap spray in mid, late June and early July.

2. Prevention and control measures of citrus coal pollution disease.

The prevention and control of citrus coal pollution disease should follow the principle of "insect treatment first, disease prevention later", and integrate agricultural control and chemical control methods to effectively control the harm of coal pollution disease.

1. Strengthen park management.

The occurrence of citrus coal pollution disease has a great relationship with the poor ventilation and light transmission performance of the orchard, so we need to do a good job of tree pruning in time in production in combination with the actual situation to ensure good ventilation and light transmittance, reduce the humidity in the orchard as much as possible, and give enough space for the healthy growth of the tree body.

In addition, it is also necessary to do a good job in the daily management of citrus pest control, flower and fruit thinning, etc., and constantly cultivate the tree body and enhance the ability to resist stress.

2. Thoroughly clean the garden.

After the fruit is picked every year, the fallen leaves, fallen fruits, and dead branches in the park are collected in time, and burned in a centralized manner, and then 3-5 Baumé stone sulfur mixtures are sprayed in the whole park.

If conditions permit, you can also sprinkle some lime powder on the foliage to promote the shedding of part of the mold layer such as leaves, in short, take all measures to eliminate the source of overwintering insects and reduce the degree of harm of pests and diseases in the coming year.

3. Reasonable and balanced application of skin fertilizer.

In the daily fertilization of citrus orchards, the principle of "organic fertilizer as the mainstay, compound fertilizer as the supplement" should be adhered to, and the amount of nitrogen fertilizer should be appropriately controlled.

The effective combination of basal fertilizer and top dressing can promote the neat and appropriate proportion of new shoots, continuously renew the canopy, restore the tree potential, and improve the stress resistance.

Coal disease harms branches, leaves and fruits. Small dark brown mildew spots appear on the surface, which are mostly caused by DAO fungi, often with whiteflies.

Bai (1) timely grasp the control of whiteflies, scales and aphids (see the pest control department).

2) Do a good job of clearing the garden in winter. Purge.

It is a soot disease that has occurred, and it can also be sprayed with dichloride emulsifiable concentrate or engine oil emulsion 200 250 times. Or sprinkle lime powder on the leaf surface to make the mold layer fall off.

3) Prevention and control of the genus should be started at the early stage of the disease. Available 0 5:1:

100 (copper sulfate: lime powder: water) Bordeaux liquid spray, or spray with 70% methyl tobuzine wettable powder 600 l 000 times liquid spray, in 6 July to spray 1:

4:400 copper soap is sprayed in mid, late June and early July.

4) Prune the orchard so that the orchard is well ventilated and transmitted.

If soot disease is caused by pests, use imidacloprid or acetamiprid or dinotefuran or thiamethoxam or sulfluniliprole or ethyl spinosad for prevention and control, it is recommended to go to the harvest agricultural materials platform to find experts for further consultation, and buy pesticides here is more assured.

Prevention and control methods of soot disease: 1. Timely prevention and control of citrus whitefly, blackthorn whitefly, scale insects, aphids and other pests is the key to eliminate and reduce the occurrence. Strengthen orange orchard management.

The orchard is properly pruned so that the ventilation and light transmission are good, which can reduce pathogenic bacteria. In places with sufficient water sources, frequent flushing with water also has a certain prevention and control effect. Soot covers the tree severely, and in the spring when it rains, lime powder can be sprinkled to clean the soot.

2. Spraying 8 10 times liquid pine resin mixture or 200 times liquid engine oil emulsion to kill insects during the clearing period can reduce the insect population base in the second year, and can remove serious soot. 3. Spraying in the early stage of the disease. Spray 50 Pythalan WP 800 times liquid or 80 Spray grams WP 600 times, 40 Dafudan WP 400 times liquid or:

1: 100x Bordeaux liquid.