What are the harmful characteristics of aphids to peppers and their control measures?

Aphids breed on peppers, will cause serious harm to the normal growth of peppers, aphids are a kind of pests with piercing and sucking mouthparts, often gather on the back of the leaves of peppers, the young stems of peppers suck juice, in addition to the partial nutrient interception of peppers to affect the normal growth of peppers, there will also be excrement to pollute the leaves of peppers, causing pepper to appear coal stain disease, affecting the yield and quality of peppers, winged aphids will also carry virus transplant hazards, resulting in the spread of pepper virus disease, As a result, the yield and quality of peppers are seriously reduced, which affects the economic benefits of planting peppers.

Pepper is the green vegetables and seasonings we often see, pepper is planted according to the reserve, can complete the supply and sales market all year round, especially the pepper planted in the open field, with the characteristics of saving time, time and labor, high economic benefits, so there are a lot of good friends, this is also a reason for the selection and planting of pepper in this aspect of planting, as long as it is a well-managed pepper, plus a good market trend is difficult to make money. Whether the pepper can achieve high quality and increase the yield is related to various aspects, among which aphids are the pests that have a certain ability to destroy the work of the pepper.

Aphids don't think that individual small harm can be quite big, to the number of wins, on the same plant, aphids can be multiplied from generation to generation, aphids have the ability to reproduce parthenogenesis. Aphids belong to the family Hemiptera Aphids, which contain stinging and sucking sucks, which stab and inhale the sap of peppers and can transmit viruses.

Aphids are also called greasy insects, the accumulation of pepper and tender tissues, the bottom end of the pepper leaves concentrate the harm, resulting in the pepper leaves wrinkled, rolled, the leaves can not be carried out normally, the leaves are yellow and withered, etc., the situation is serious and can cause the death of plants, and the harm is very great. Winged aphids have a strong ability to migrate, and the harm of transplanting is significant.

In the early stage of insect infestation, 2000 times of liquid thiamethoxam + 1000 times of liquid high-efficiency chlorofluorocyanurin polyester can be used. Spray the whole pepper plant. Spray once every 5 7 days, spray 2 3 times continuously, or spray with pymetrozine + thiazide isoprotection, etc., in order to reduce the damage of pepper and promote its rapid recovery and growth, potassium dihydrogen phosphate solution + 3000 times liquid brassinolide can be added in the process of spraying to promote rapid repair and growth.

A week before the pepper seedlings are planted, the roots are irrigated with 1000 times of liquid thiamethoxam suspension agent, so that the pepper seedlings can be fully digested and absorbed, and the interdependence period between the pepper seedlings and other food crops after planting is used to prevent aphid damage.

When the virus-laden aphids move in and suck the sap of healthy plants, they bring the virus with them to complete the virus inoculation. At this time, the pepper showed the symptoms of viral disease, the leaves shrunk and did not stretch, and antiviral agents should be added when spraying the agent, commonly used are lentinan mushroom polysaccharides, virion, morphoguanidine acetate ketone and other agents.

The harm of pepper aphids to pepper is mainly manifested in direct sucking of sap, adults and nymphs gather in leaves, flower buds, growth points, etc. to suck the leaves in the body of pepper, the damaged leaves fade green and yellow due to lack of nutrition, and finally fall off, after the flower buds are damaged, the flower buds fall off because they cannot obtain enough nutrients. When aphids move in and suck the sap of healthy plants, they bring the virus with them to complete the virus inoculation. At this time, the pepper shows the symptoms of viral disease, the leaves are shrunken and do not stretch, and antiviral agents should be added when spraying.

Cotton bollworm is one of the most common insect pests involved in the growth of peppers. The method of control is to carry out deep ploughing before the rotation value, and dry in the sun for three days to destroy part of the eggs.

It will lead to the death of plants, seriously affect the normal growth of plants, lead to spoilage, and need to be sprayed with pesticides in time, and pay attention to the cleaning of weeds and diseased plants.

Pepper is the most common vegetable and condiment in our lives. Although it originated in Mexico, it has been cultivated more and more in China since its introduction. In recent years, there has been an increasing demand for chili peppers in the market due to more and more people liking to eat spicy food, but many vegetable farmers are often worried about chili pepper pests and diseases, because chili pepper pests and diseases are more serious than diseases, which have a great impact on the quality and yield of chili peppers.

What are the common pepper pests? How can it be prevented? 1.

Cotton bollworm. Cotton bollworm is one of the most common pests in the growth process of peppers, affecting not only the growth of peppers, but also other nightshade vegetables.

Cotton bollworm mainly eats the buds, flowers and fruits of peppers, and also harms the leaves, young stems and buds of peppers. After eating, the buds will appear yellow-green and fall off naturally 2-3 days after eating. The larvae of the cotton bollworm also eat the fruit of the pepper.

Although it will not cause the fruit to fall off immediately, it will cause rain or germs to enter the fruit, causing the fruit to rot or fall off, which will seriously affect the quality and yield of peppers. Control method: Cotton bollworm eggs will be latent in the soil for overwintering, and when the temperature rises in the second year, the larvae will crawl out of the soil and invade vegetables.

Therefore, when planting peppers, you should avoid rotating with other nightshade vegetables, dig deep in the soil and dry it for 2-3 days before planting, and you can eliminate some cotton bollworm eggs.

During the pepper growth season, according to the insect forecast, the branches of the cotton bollworm that lay more eggs are cut off during pruning, and the eggs are taken out of the garden and burned. During the peak oviposition period of cotton bollworm adults, drugs such as karyotype polyhedrovirus and BT emulsion can be sprayed to kill cotton bollworm adults. The enlargement period of pepper fruit is the most serious period of cotton bollworm.

In addition to the effective control of cotton bollworm with chemical drugs, the phototaxis of cotton bollworm can also be used to trap and kill adult worms with black light. Aphids. Aphids are not only the most common pests during the growing season of peppers, but they are also the pests that have the greatest impact on most vegetables.

Under the influence of aphids, the internodes of pepper leaves and branches become shorter and bent, the leaves are deformed and curled, and the whole plant becomes weaker and shorter, which not only leads to the decline of pepper yield.

It can also spread other viruses that cause pepper disease. Control methods: Aphids can not only infect peppers, but also affect the growth of other weeds.

In order to reduce the number of aphids, the weeds in and around the pepper vegetable patch should be removed in time to reduce the number of aphids. Since aphids mainly attack the folds of the heart leaf or the back of the leaf of the pepper, when spraying the drug with aphids, it is necessary to spray the drug accurately on the heart leaf and the folds on the back of the leaf to achieve the desired effect. In order to prevent the occurrence of aphids, silver-gray mulch can also be used when planting peppers to prevent winged aphids from sneaking into the pepper fields and causing peppers to be infected with aphids.

If you want to control pepper aphids, you can only control them by spraying pesticides, and there is no other way to buy this insecticide at agricultural supply pharmacies.

Remove the surrounding weeds, burn them, prepare some insecticides, properly clean up the areas with many insect pests, enhance ventilation, and meet the needs of light.

Clean the countryside. Remove weeds in and around the field to reduce the source of insects.

Silver-gray film mulching cultivation. The characteristics of aphids with negative tropism to silver-gray are used to achieve the purpose of avoiding aphids and preventing diseases.

Pesticides. Because after the pesticide is applied to the green pepper in my house, the aphids are gone, so I should use pesticides to control it.

The propagation speed is very fast, the range is very fast, and the lethality is very large, which will make the leaves of Zanthoxylum pepper turn yellow, will make the growth rate of Zanthoxylum pepper become very slow, and will also make the leaves droop and reduce the yield; Apply more fertilizer, but also sprinkle nutrient solution, poison agent, temperature should be suitable, and there must be a certain amount of sunshine, so as to prevent these pests.

First of all, it is necessary to disinfect the soil when planting, pay attention to regular pest prevention, and also pay attention to regular deworming. Moreover, the seeds should be treated and disinfected, so as to prevent the occurrence of some diseases.

Most of the dry conditions will occur, seriously affect the growth of plants, be sure to pay attention to watering, pay attention to the local climate, and use pesticides on time.

The budworms multiply quickly and spread rapidly, so they must be prevented immediately, but the buds are mostly born on the opposite side of the leaves, and it is difficult for the drug to be sprayed in all directions. Chaotian pepper produces more in real time, especially when the climate is more dry, it is more serious, a few days are all over the leaves of Chaotian pepper, which seriously endangers the production of Chaotian pepper, when Chaotian pepper is planted, if there is no need for chemical fertilizer, how to prevent and control bud insect damage? In the past, before there was no chemical fertilizer, the rural people in our village all chose home remedies to carry out prevention, although the actual effect is not as fast as modern chemical fertilizer, and the solution is complete.

It's all practical or better, and it takes 2-3 applications to completely eliminate the bud worms. The use of quicklime powder prevention, when Chaotian pepper produces bud worms, you can load the fine quicklime powder into the duster and spray it from the bottom to the top, spray the quicklime powder to the reverse side of the pepper leaves, which can reasonably avoid the sprouts, and water in time after spraying, always keep the soil layer moist, and be able to manipulate the breeding of budworms. Pepper fruit is rich in protein, sugar, organics, vitamins and a variety of carbonates.

Eating properly can promote the secretion of gastric juice, increase appetite and promote digestion.

Exciting spiritual substance. It can be eaten raw, cooked, pickled, and produced and processed oil and chili seeds, hot sauces, chili noodles, canned Chaotian pepper fruits, etc., which are loved by many urban and rural people. In the case of the growth and development of Chaotian pepper, it will often suffer from the infestation of bud worms, and if the drug is used, there will be some unstable factors for food hygiene and safety; How to treat the buds in Chaotian pepper?

How to manage security? It is a long-term puzzle for the difficulty of planting households to control pests and diseases; In fact, the sprouts in Chaotian pepper can be eliminated without drug treatment, and experienced farmers in folk customs are in agriculture for a long time.

I have summarized some simple and reasonable tips for remediating budworms, which can bring practical results with half the effort in the case of remediation of budworms; Chili pepper is the most common seasoning in China, and the dietary structure of Yunnan, Guizhou and other provinces and regions in the western region can be said to be "spicy". Although Chaotian pepper is loved by everyone in China at a high level, and the planting area is improving continuously, many people may think that Chaotian pepper has a very long history of planting and consumption, but in fact, Chaotian pepper has been planted in China for more than 400 years.

If pesticides are not used, manual removal is a method because aphids tend to concentrate on young leaves, flowers and young fruits. Manual removal, centralized treatment, or removal of insects with a small brush can solve the problem of garden planting, but the larger the area, the more difficult it is to operate. Others can also be combined with general biological control methods such as ladybugs, lacewings, aphid flies, aphids, etc., to release fungi such as Beauveria bassiana and Metarhizium aeruginosa, and comprehensive control is the best according to local conditions.

Combined with cultivation measures, the selection of disease-resistant varieties, ventilation to control water and fertilizer, when the temperature exceeds 27 degrees and the relative humidity of the air exceeds 75%, it is not conducive to the reproduction of aphids.

Before planting peppers, you can sprinkle some plant ash in the ground, which can play a good insecticidal effect, and water more after planting peppers.

Manual removal is an option. You can also use a fine and soft brush to brush off the aphids, and then clean them out as a whole and destroy them in a centralized manner. If the area is too large, it will take time.

1. Bacterial wilt: Before transplanting, apply 100-150 kg of lime or plant ash per mu to adjust the pH of the soil and inhibit the reproduction of pathogens. At the beginning of the disease, 300 times of 14% copper ammonia aqueous agent, 500 times of 77% wettable powder or 4000 times of agricultural streptomycin sulfate were used, once every 7-10 days, 3-4 times in a row.

If the diseased plant is found, it should be pulled out in time and disinfected with lime to prevent infection.

2. Anthranose: 50% mancozeb 800 times solution, 1000-1500 times of Shigao liquid or 3000-4000 times of Ai Miao liquid spray, spray once every 7 days, spray 2-3 times.

3. Aphids and viral diseases: 3000-4000 times of aphid lice net or 4-6 grams of Aksulji Xiaotai per mu mixed with 50-60 kg of water for aphid control is better.