How to control eggplant pests and diseases? What s the best way to do it?

The ** of each eggplant disease is different, so it must be solved on a case-by-case basis. If you use it blindly, it can be counterproductive. The worst outcome is that the eggplant dies.

When using chemical pesticides for prevention and control, farmers should pay attention to two aspects. One aspect is the prevention of drugs, and the other is the prevention and treatment of drugs. Prophylaxis is mainly used in the early growth of eggplants.

Pesticide control is mainly in the late growth stage of eggplant. If eggplant needs to be controlled multiple times, it is necessary to pay attention to the rotation of different agents. Because if one agent is used all the time, it may make the eggplant resistant.

In order to be effective against eggplant disease, it is necessary to understand the common diseases of eggplant. In the production of eggplant, there are five common diseases of eggplant: brown streak, Verticillium wilt, cotton blight, gray mold and bacterial wilt. Many people may not know about these diseases.

But the people who grow eggplants must have seen it. Some of these conditions are detected at an early stage or at a later stage. Therefore, when eggplant is growing, production personnel must always pay attention to the growth dynamics of eggplant.

This is conducive to the timely prevention and control of eggplant diseases and pests. <>

In addition to knowing the common pests and diseases of eggplant, it is also important to know how to**. Although all are controlled by chemicals, the methods used for each common pest and disease are different. For these pests and diseases, the general chemical control idea is to start from the seedling stage for preventive medicine, once found eggplant has related diseases, must be used as soon as possible to prevent and control.

In the process of implementation, the commonly used methods are seed disinfection, seedling soil disinfection and pesticide root irrigation. <>

Every vegetable is ripened through arduous growth. In the process of growing, these vegetables are affected not only by the environment, but also by bugs. When the growth temperature of eggplant changes too quickly, eggplant is prone to disease.

Eggplants are also susceptible to disease when the soil of the eggplant changes. For the cultivation of eggplant, the production staff is very hard.

1.Fusarium wilt disease disease generally from the bottom to the whole plant disease, at the beginning of the disease, the leaf edge and leaf veins turn yellow, the whole leaf turns yellow in the later stage, the diseased leaves are generally wilted, until the withering falls, when it is serious, the leaves of the whole plant will fall off only the stem. Prevention and control methods:

In the early stage of plant disease, carbendazim or thiophanate-methyl suspension can be sprayed for control.

2.Cotton blight This fungal disease caused by the fungus Phytophthora nightshade. In low-lying areas, where nitrogen fertilizer is applied and over-dense planting, the spread of the disease will be exacerbated.

Prevention and control methods: To prevent and control cotton blight, it is necessary to spray 68% enoylmorpholine and 58% methalene at the peak fruit stage. Mengzinc is sprayed once a week, a total of 2-3 times.

3.Verticillium wilt Verticillium wilt generally occurs after fruit set, with symptoms appearing in the lower middle of the plant, wilting on sunny days in the early stages of the disease, recovering sooner or later, and not recovering after severe illness. The branches and leaves turn yellow, and the vascular bundles turn black-brown.

Prevention and control methods: In the early stage of the disease, you can choose to irrigate the roots with 50% carbendazim 500 times, once every 10 days, 2-3 times in a row.

From the seedling to the fruit stage, there are many diseases and insect pests that often occur in eggplant, including blight, cataplexy, virus disease, tomato wilt, late blight, early blight, gray mold, leaf mold, and umbilical rot; eggplant brown streak, cotton blight, root rot, verticillium wilt; Pepper blight, anthracnose, scab, sun burn, cotton bollworm, tobacco worm, aphid, whitefly, etc.

First of all, when planting eggplant, it is necessary to select disease-resistant varieties, and implement ploughing, crop rotation, stubble, and strengthen the work of cultivating and weeding, so as to reduce the source of infection, find latent pathogenic bacteria and hidden insect pests, and do a good job of shading treatment, improve plant stress resistance, and reduce the occurrence of viral diseases.

Secondly, the seeds of eggplant are directly related to the yield in the later stage, generally speaking, 10% trisodium phosphate should be used to soak the seeds, and seed dressing agents can also be used to dress the seeds to ensure the resistance of eggplant seeds, so as to reduce the probability of pests and diseases in the planting process.

Spray pesticides on time, pay attention to watering and fertilization, pay attention to the selection of varieties, and clean up weeds, so as to effectively prevent diseases.

Eggplant belongs to a kind of vegetable with large market demand and good planting prospects, especially the eggplant listed in early spring** is expensive, eggplant is nutritious, there are many ways to eat, frying, stir-frying, cooking, frying, stewing, etc., which are very popular with people. Eggplant is highly resistant to disease, has a long harvest time and high yield in one planting, from spring planting until frost falls. Eggplant can grow for a long time, subject to many external disturbances, many of which have diseases, eggplant common pests and diseases generally include eggplant cotton blight, eggplant gray disease, eggplant verticillium wilt, eggplant brown streak, red spider, 28-star ladybug, etc.

What do we need to pay attention to in terms of prevention and control?

1. Eggplant cotton blight, eggplant cotton blight mainly occurs in the environment of high temperature and humidity, commonly known as eggplant blight, eggplant blight will mainly cause eggplant fruit to rot, lose commodity value, and at the same time cause harm to eggplant seedlings, young branches and leaves, etc., eggplant cotton blight is one of the eggplant diseases, the harm is relatively serious, and the occurrence of eggplant blight is heavier, which will cause the economic benefits of eggplant to shrink significantly. Eggplant in the seedling stage of low temperature, high humidity, prone to blight, eggplant seedlings and cataplexy disease, fall to the ground, in the roots of eggplant seedlings have a white flocculent layer, eggplant leaves appear disease, first from the tip of the leaf to infect the disease, the lesion part seems to have been soaked in water, the edge is irregular, and then die, when the humidity is high, there is a white fungus. Most of the fruits are diseased from the ground nearby, and there are near-round lesions on the surface of the eggplant fruit, with water stains and rot.

Eggplant cotton blight is easy to occur, too much nitrogen fertilizer is used, eggplant plants grow too vigorously, not strong, the field is shady, easy to accumulate water after rain, and the plots that have been planted after successive years are the most prone to disease.

2. Eggplant dry rot, eggplant dry rot is also called eggplant brown streak. It can be harmful to all parts of the eggplant plant. Eggplant ash disease is also important.

3. The choice of planting place, in the process of planting eggplant, it is better to choose loam soil that is slightly higher in terrain, not waterlogged after heavy rain, half silt and half sand, and the planted eggplant can not be too dense, which affects the ventilation and light transmission ability of eggplant, and the eggplant is tall, and generally not more than 2,000 plants per mu of land are planted as well, so as to prevent a variety of diseases of eggplant.

4, the choice of disease-resistant varieties, eggplant varieties are different, disease resistance is also different, according to the usual planting experience, the greenhouse cultivation and planting of round eggplant is better, the round eggplant has good low temperature resistance, and the disease resistance is relatively strong. If the incidence of cotton blight is more severe, it is more important to choose round eggplant for planting. Generally, white-skinned eggplant, green-skinned eggplant, long eggplant, etc., have better resistance to dry rot, and it is worth choosing to plant.

5. Pesticide prevention and control, eggplant diseases, mainly to prevent, sprayed fungicides, generally should have high efficiency and low toxicity, with the dual role of protection and ** as well, for example, ethylphospho aluminum manganese zinc, mancozeb, chlorothalonil wettable powder, manganese zinc, manganese zinc, amicida, iprodione, take the enemy and so on. Spider mites can be sprayed with 2000 times liquid avida digen. The 28-star ladybug is a pest, and it can be controlled by spraying 1000 times of high-efficiency permethrin.

Should be closely observed stems, leaves, fruits and other parts of the disease leaves or pests, if there should be timely removal, incineration, and then with some insecticides sprayed on the stems and leaves to control pests and diseases.

Eggplants are very susceptible to disease when they bear fruit, so pesticides should be applied at this time to prevent diseases. In this way, a high yield of eggplants can be guaranteed.

I think the best thing to do is to spray the eggplant with pesticides regularly so that it can prevent pests and diseases.

1.Biological control and ecological control are unified in the process of pest control to use the basic laws of nature to deal with the problem, and the selection of natural enemies of pests and diseases is to use the food chain relationship in nature to prevent and control, which is an efficient and green means of control. In the process of selecting natural enemies of pests and diseases, it is necessary to make a decision based on the actual situation.

2.Physical control and chemical control are unified Physical control refers to the setting of plastic film, insect nets, etc. in the field of planting eggplant to trap and kill insect pests, and the physical control methods adopted by different insect pests will be different, such as aphids have avoidance of silver gray.

During this time, there is a lot of rain, and there will be some insect infestations when planting eggplants. It is very important to carry out pest control of eggplant, and if you want to control insect pests, you must first understand these pests. Generally speaking, when the rain is more abundant, the eggplant will also suffer from insect infestation.

Generally speaking, the main hazards of reset are the fruits and flowers of eggplants. When the leaves are infested, they generally produce brown lesions, and they have a more obvious whorl-like shape, and mildew will grow on the leaves when they are wet. <>

When the fruit is infested, there are usually some round lesions, which will slowly turn dark brown, and then slowly expand so that the whole fruit becomes shriveled. If you want to control the insect pest of eggplant, then you should still catch insects frequently, and it is best to choose suitable pesticides. Because eggplants have different manifestations of different pests and diseases, different pesticides should be used to repel insects.

There are some things that must be paid attention to when deworming eggplant, for example, the type of pesticide must be selected well, because the pests affected by eggplant are different, so the choice of pesticides must also be targeted. And when you use pesticides, it is not as much as possible, if you use too many pesticides, it is easy to hurt the eggplant itself. Therefore, we must master the dosage of pesticides, and only by mastering the dosage can we quickly restore the eggplant to a healthy state.

At the same time, we should also pay attention to the moisture-proof eggplant, because the current weather is more rainy and the soil is more humid, which is easier to breed some pests. Therefore, we should also see the moisture of the soil, generally speaking, as long as the moisture of the soil is kept in a balanced state, there will not be many insects. Of course, you also have to choose different methods according to different regions, because in some areas the soil is drier, but in some areas such as the south, the soil will be relatively wet, and there will be more insects.

1.Eggplant cotton blight is seriously damaged in rainy years. Hazard characteristics:

It is mainly harmful to fruits, but also to harmful leaves, stems, and flowers. The leaf damage produces irregular round water-soaked brown lesions, with obvious wheel lines, and white mold grows on the lesions when wet. At the beginning of the fruit, there are water-soaked round lesions, slightly concave, black-brown, and then gradually expanding, causing damage to the whole fruit.

When wet, white cotton wool grows on the lesion, and the flesh is brownish-black, rotten, easy to fall off or shriveled and shrink into a stiff fruit. The stem is water-soaked and shrinking, and the upper part is wilted and easy to break. Prevention and control methods:

1) Seed treatment with nail cream. Manganese-zinc soaking is followed by germination sowing. (2) Choice of pharmacy:

Mancozeb, enoylmorpholine + chlorothalonil, pyraclostrobin, azolestrobin + chlorothalonil, etc. 2.Eggplant early blight can be diseased at the seedling stage and the adult plant stage

It mainly damages leaves and fruits. Leaf disease: nearly round or irregularly shaped lesions are produced in the early stage, the edges are brown, the middle part is gray and white, and there are concentric wheel patterns.

When the humidity is high, the diseased long is fine gray-black mold, the middle part of the lesion is brittle and cracked in the later stage, and the diseased leaves fall off early in severe cases.

For the prevention and control of eggplant diseases and pests, prevention and control measures should be taken in advance to avoid pests and diseases affecting the cultivation efficiency of eggplant. It is necessary to accurately grasp the key points of eggplant cultivation technology, reasonably arrange planting activities, summarize the types and occurrence rules of common pests and diseases in the area, and carry out targeted prevention and control.

1.Prevention and treatment of Verticillium wilt.

Verticillium wilt usually invades the vascular tissues of eggplants during fruit set. After infection, the leaves turn yellow, gradually wither at noon, and slowly recover at night. If not, it can lead to a large number of leaves falling off or even the complete death of the plant.

When the stems of the dead plant are removed, the vascular tissue is brown. Bacteria can survive in the soil for many years. Climate and management are the main causes of this disease.

Low temperature and high humidity can aggravate the condition. Rotation or unscientific fertilization of nightshade vegetables will increase the occurrence of Verticillium wilt. To prevent Verticillium wilt, seeds can be soaked in carbendazim wettable powder for about 2 hours.

The rotation of eggplant and fruits and vegetables should be maintained for more than 2 years. Cultivate strong seedlings and enhance the disease resistance of seedlings. Soak the roots in zinc toluene wettable powder for about an hour.

2.Brown lesion control.

When the eggplant turns brown, it forms dark brown spots. After invading the leaf stem, the center of the spot gradually changes from dark brown to grayish-white with small swirling black spots. Infected seedlings will form lesions at the base of the stem, resulting in an increase in the seedling quenching rate.

Brown streaks are found in the seed epidermis, diseased bodies, and soil, and are spread in a variety of ways. A job rotation system should be reasonably established to improve the level of on-site management. Sterilize the seeds inside the seedlings and soak them in warm water and medicine.

Or use carbendazim wettable powder and filler for seed dressing. After transplantation, lime powder and plant ash are used to reduce stem morbidity.

Pest control requires the flexible use of biological, physical and other prevention and control technologies to improve the prevention and control effect. In order to effectively control whitefly, yellow plate can be used to kill whitefly. Generally, 35 pieces can be set per mu.

The natural enemies of whiteflies, such as aphids and sandflies, can also be introduced for control. For more severe cases, imidacloprid emulsion should be used. To control aphids, you can reasonably set up insect nets, or hang yellow boards between the eggplant rows.

The difference between the height of the yellow plate and the plant is about that.