How to control pepper leaf blight? What disease is pepper leaf wilt?

The following methods can be taken to control pepper leaf blight. Strengthen the management of the seedbed, use well-rotted farmhouse fertilizer as the base fertilizer, ventilate in time, control the temperature and humidity of the seedbed, and cultivate disease-free and strong seedlings. Implement crop rotation and remove sick and disabled bodies in a timely manner.

Strengthen field management, rational use of nitrogen fertilizer, increase phosphorus and potassium fertilizers, or apply foliar fertilizers such as spraying and phytobao; After planting, loosen the soil and top dressing in time, and drain the water in time in the rainy season. At the beginning of the disease, spray 800 times of 50% thiophanate-methyl sulfur suspension, or 400 times of 20% sodium dichloroisocyanurate soluble powder, or 600 times of 75% chlorothalonil wettable powder, spray once every 7 10 days or so, and continue to prevent and treat 2 3 times according to the condition. Discontinue the drug 7 days before harvest.

1) Strengthen the management of the seedbed, use the rotting manure as the base fertilizer, ventilate in time, control the temperature and humidity of the seedbed, and cultivate disease-free and strong seedlings.

2) Implement crop rotation and remove sick and disabled bodies in time.

3) Strengthen field management, rational use of nitrogen fertilizer, increase phosphorus and potassium fertilizer; After planting, loosen the soil and top dressing in time, and drain the water in time in the rainy season.

4) Drug prevention and treatment. In the early stage of the disease, 64% alum wettable powder 600 times liquid, 58% methalene-manganese-zinc wettable powder 500 times liquid, 1 1 200 Bordeaux liquid, etc., once every 5 7 days, sprayed 3 4 times, the control effect is more than 90%.

The leaves of the pepper tree are wilted, and may be infected with wilt, so it should be prevented in advance, soil disinfection, reasonable fertilization to increase disease resistance, and 600-1000 times of potassium permanganate should be sprayed. It may also be infected with leaf mold, and it is necessary to destroy the diseased branches and leaves, and spray 800 times of methyl tobuzine on the pepper plant. It may also be infected with leaf blight, in the early stage of the disease, it is necessary to spray fungicides, which can be sprayed with drugs such as chlorothalonil suspension 800-1200 times**.

1. Blight.

Symptoms: The leaves on the pepper tree are all wilted, probably because of infection with blight, after the appearance of this disease, the leaves gradually turn yellow and wither from bottom to top, and a large amount of fall off, not only the leaves are affected, but the cortex at the base of the stem, which is in close contact with the ground, gradually begins to decay in a water-soaked manner, and eventually leads to the death of the whole plant.

Solution: Do a good job of preventive measures, choose varieties with good disease resistance to plant, carry out high-temperature soil disinfection, usually reasonable fertilization to enhance the disease resistance of plants, and wait until the pepper is sick, and then apply 600-1000 times of potassium permanganate.

2. Leaf mold.

Symptoms: The disease is more serious in the pepper fruit swelling period, starting from the bottom of the plant, the leaves first appear light yellow irregular markings, and then the leaves appear white mold layer, when severe, it will cause the leaves to wither, but also cause the fruit to become smaller and deformed.

Solution: Clean up the diseased branches and leaves in time and destroy the diseased branches and leaves. In the early stage of the disease, you can spray 800 times of methyl tobuzine solution on pepper plants**.

3. Leaf blight.

Symptoms: This disease can occur at both seedling and adult stages, mainly harming the leaves, resulting in lesions on the leaves, and then gradually expanding, and the leaves begin to wither.

Solution: In the early stage of the disease, it is necessary to spray fungicides, and drugs such as chlorothalonil suspension 800-1200 times can be used.

The above is the name of the disease of pepper leaf wilting, as well as the methods of prevention and control, there are many reasons for pepper leaf wilting1Physiological factors. Factors such as long-term low temperature and high humidity, high temperature and drought or too strong light, and the imbalance of fruit and leaf ratio will cause pepper leaf rolling, and if it is too dry or too long in water, it will also lead to dead leaves or even the whole plant wilts and dies.

2. Pests. Leaf curls caused by red spiders and aphids, and mite infestation can also lead to dead leaves if they occur. 3. Diseases.

The diseases that cause pepper leaf curling are mainly viral diseases, and the diseases that cause pepper leaf wilt are mainly pepper leaf blight. 4. Fertilizer damage and pesticide damage. Too much fertilization or heavy spraying can cause the leaves to curl at least and dry up the leaves at worst.

Pepper leaf rot may be pepper wilt, when pepper wilt occurs, the leaves gradually turn yellow from the bottom up and fall off in large quantities. The cortex at the base of the stem in contact with the ground decayed in a water-soaked manner, and the stems and leaves of the aboveground withered rapidly. Sometimes the disease develops only on one side of the stem, forming a strip-like necrotic zone, and the whole plant dies later.

The underground root system is water-soaked and soft rot, the cortex is easily peeled off, and the vascular bundles can be seen to turn brown when cut longitudinally from the base of the stem. Under conditions of high humidity, white or blue-green mold is often produced in the diseased area. How can it be prevented?

Pepper leaf rot disease control measures.

2. Soil treatment, when cultivating in protected land, solar energy can be used to disinfect high-temperature soil in the summer high temperature season, first, ridge, fill with water and then fully spread the mulch film, close the shed, so that the soil temperature rises, and the temperature at 20 cm below the surface is kept above 45 for 20 days. This method also kills other germs and pests in the soil.

2.Pay attention to the weather when spraying, avoid high temperatures and rainy seasons, and try to choose the morning or evening.

Summary. Pepper leaf blight is one of the common diseases of peppers, which often affects the growth and yield of peppers. Here are some of the characteristics that identify pepper leaf blight:

1.Yellowish leaf color: The initially infected leaves will gradually change from green to yellow, with a lighter color that will gradually spread throughout the leaf.

2.Leaf wilting: The infected leaf gradually withers, starting from the edge and spreading to **, until the entire leaf is completely wilted.

3.Leaf shedding: Infected leaves will gradually fall off, resulting in a decrease in the number of leaves in the plant, affecting the growth and yield of peppers.

4.White mold on leaves: Infected leaves will have white mold spots that quickly spread throughout the leaves.

5.Deformation of leaves: Infected leaves are deformed and irregularly shaped, with wavy edges.

The above are some of the characteristics of identifying pepper leaf blight, if your pepper plant has the above situation, you can consider taking corresponding control measures, such as timely removal of infected leaves, strengthen plant management, use of professional pesticides, etc.

Pepper leaf blight is one of the common diseases of peppers, which often affects the growth and yield of peppers. Here are some of the characteristics that identify pepper leaf blight:1

Leaves become yellowish in color: the first infected leaves will gradually change from green to yellow, lighter in color, and gradually spread throughout the leaves. 2.

Leaf wilting: The infected leaf gradually withers, starting from the edge and spreading to **, until the entire leaf is completely wilted. 3.

Leaf shedding: Infected leaves will gradually fall off, resulting in a decrease in the number of leaves in the plant, affecting the growth and yield of peppers. 4.

White mold on leaves: Infected leaves will have white mold spots that quickly spread throughout the leaves. 5.

Deformation of leaves: Infected leaves are deformed and irregularly shaped, with wavy edges. The above are some of the characteristics of identifying pepper leaf blight, if your pepper plant has the above situation, you can consider taking corresponding control measures, such as timely removal of infected leaves, strengthening plant management, using professional pesticides, etc.

What kind of disease is this?

Pepper leaf blight.

Are you sure. It is basically certain that when you buy medicine, you will also send it to the person who sells the medicine to take a look.

This double insurance.

Choose varieties with good disease resistance, soak seeds with pesticides or microbial agents before sowing, and sow the seedbed soil strictly after sowing. Try to avoid continuous cropping to prevent diseases from infecting plants through the soil for many years. 2.

To plant peppers, choose the first acre of high furrow cultivation to facilitate drainage and humidity control. During the planting process, it is necessary to avoid flood irrigation, and pay attention to drainage after rain to prevent water accumulation. 3.

The diseased plants should be completely cleared out of the planting area and buried or burned deep to prevent the disease and residue from carrying the fungus from continuing to infect. After the end of planting, it is also necessary to remove the plants from the bottom of the lease, and clean up the source of residual branches and fallen weeds. The soil is then deeply turned and disinfected.

The application of probiotic-rich organic fertilizer can effectively inhibit the reproduction of pathogenic bacteria. 4.At the onset of the disease, you can buy the corresponding pesticides and irrigate the roots or spray them according to the instructions.

Growers in organic vegetable gardens can choose probiotics for control, which are effective and safe and residue-free. No matter what kind of disease, we should pay attention to prevention, once you get the disease, it will often cause a certain amount of loss. Do a good job in planting management, reasonably control the planting rules, and believe that pests and diseases will naturally be reduced.

Hello, the common diseases are listed for you:

1. Scab disease.

Symptoms: Almost all parts of the plant can be diseased.

Control methods: 2 to 3 years rotation with non-Solanaceae vegetables, combined with deep ploughing; After planting, pay attention to cultivating and loosening the soil to promote root development; Timely top dressing, pay attention to the reasonable combination of nitrogen, phosphorus and potassium fertilizers to enhance the tree potential; Grow on high ridges and pay attention to drainage after rain.

Seed sterilization. Before sowing, the seeds are pre-soaked in clean water for 2 3 hours, then soaked in 55 warm water for 15 30 minutes, cooled in cold water, and then germinated and sown.

2. Chili blight.

Symptoms: The disease is a soil-borne disease, which can occur at both the seedling and adult stages of pepper.

Control methods: select new varieties resistant to epidemic diseases; 2 to 3 years rotation with non-Solanaceae vegetables, combined with deep ploughing; After planting, pay attention to cultivating and loosening the soil to promote root development; Timely top dressing, pay attention to the reasonable combination of nitrogen, phosphorus and potassium fertilizers to enhance the tree potential; Grow on high ridges and pay attention to drainage after rain.

3. Capsicum virus disease.

Symptoms: mosaic, stripy, leaf deformity and arbuscular branching.

Control methods: select disease-resistant varieties, implement 2 to 3 years rotation with non-solanaceae vegetables, combined with deep ploughing; Chase the sea and Weihai in time to eat fertile water-soluble fertilizer, pay attention to the reasonable combination of nitrogen, phosphorus and potassium fertilizer, and enhance the tree potential; Grow on high ridges and pay attention to drainage after rain.

Seed treatment: soak the seeds with 10% trisodium phosphate solution or potassium permanganate solution for 15 20 minutes, wash them with water and then germinate and sow them. It can also be soaked in 55 warm water for 15 minutes, cooled and then germinated and sown.

It can be used to increase the yield of pepper in all aspects, which can effectively prevent and control diseases such as pepper cataplexy, anthrax, gray mold, and bacterial wilt; The yield per mu can be increased by up to 200 catties.

Dear, hello, this is mainly to prevent underground, aboveground, fungal infections, etc., above-ground vegetable insects we generally use, cypermethrin, the use of high-efficiency cyhalothrin water emulsion, about 50 ml per acre. (Try not to use it during pollination), for the prevention of underground tigers, mole crickets and the like, we use phosphine, when you use chemical fertilizer, stir phosphine in the chemical fertilizer.

For fungal infections, we mainly use carbendazim and chlorothalonil for prevention. This method of use, generally chlorothalonil, with potassium dihydrogen phosphate, after the end of flowering, when fruiting, we use this. Chlorothalonil potassium dihydrogen phosphate plays a role in preventing fungi.

Question: What kind of medicine is used to control those pests and diseases in the pepper seedling stage and eggplant seedling stage, thank you In addition, carbendazim is used for root irrigation, in the rainy season, with this use, it is mainly used for root irrigation, prevention of root rot, etc.

There are mainly tea yellow mites, eggplant yellow spot borer, etc., ask questions.

What drugs are used to prevent and treat it.