CATDOLL : CATDOLL: How to prevent and control the disease of dace? How to prevent and control the rice virus disease? What are the methods for preventing and controlling the rice virus disease?

1. How to prevent and treat grass carp diseases?

Mud carp disease, also known as "umbilical cord disease" or "umbilical disease", is a disease caused by bacteria that live in fish. It mainly occurs in summer and autumn and in freshwater ecological environments such as rivers, lakes and seas with warmer water. Once the dace is infected with the disease, it will lead to symptoms such as poor development, ulcers, rapid and obvious slow growth and death, so timely prevention and treatment is crucial.

The following are the prevention and treatment measures for fish diseases:

1. Keep the water clean. Dace do not like dirty water, so try to reduce the concentration of sediment and pollutants in the breeding pond, and use biological drugs or high-efficiency bacteria agents to clean it up when necessary.

2. Control the spread of the epidemic. Reduce the possibility of cross-infection, minimize contact between fish during the breeding process, and regularly use disinfectants to clean equipment and other related facilities.

3. Strengthen feeding management. When choosing feed, pay attention to balancing the various nutrients needed by the fish, avoid overfeeding, and pay attention to strengthening daily observation. Once abnormal conditions are found, deal with them in time.

4. Timely drug treatment. If there is an epidemic in dace, appropriate antibiotics and anti-inflammatory drugs can be used for treatment. However, the use of drugs should also follow the principle of rational use of drugs, and follow the dosage, medication time and medication cycle specified in the instructions to prevent the emergence of residues and drug resistance.

In short, the prevention and treatment of grass carp disease requires the adoption of a variety of comprehensive control measures to improve the health level of the fish and ensure the stable development of the aquaculture industry.

2. How to prevent and control rice virus diseases? What are the methods for preventing and controlling rice virus diseases?

1. Prevention and control strategy[1]: Adopt the prevention and control strategy of “cutting off the source of the disease, controlling pests and controlling diseases” to control the damage caused by stripe leaf blight and black-streaked dwarf disease, while also controlling the stem borer and the chilo suppressalis, laying the foundation for a bumper rice harvest.

2. Time of application: Apply the medicine 3-5 days after transplanting (machine planting); apply the medicine as soon as direct-seeded rice turns green, and apply the medicine for the second time after 5-7 days.

3. Pharmaceutical formula:

①Use 60g of 25% pyrifos + 60ml of 30% thiazolin + 30ml of 2% amino oligosaccharide or 60g of 50% chlorobromoisocyanuric acid mixed with 20-30kg of water for even spraying per mu;

②Use 100 ml of 45% rice poison + 30 ml of 2% amino oligosaccharide or 60 g of 50% chlorobromoisocyanuric acid mixed with 20-30 kg of water per mu and spray evenly;

③Use 15g of 25% pymetrozine + 60ml of 30% thiazolin + 30ml of 2% amino oligosaccharide or 60g of 50% chlorobromoisocyanuric acid mixed with 20-30kg of water for even spraying per mu. III. Precautions 1. To improve the control effect, add 20ml of flusilazole prochloraz, and pay attention to the combination of fast-acting and long-lasting agents, and use different agents alternately;

2. It is necessary to use pesticides for comprehensive prevention and control at a unified time, and use pesticides on weeds along roads, canals and ditches at the same time to ensure the prevention effect;

3. It is prohibited to use highly toxic and high-residue pesticides.

4. Dissolve chlorobromoisocyanuric acid in water first, then add other fungicides and pesticides.

3. How to prevent and control sweet potato virus disease? What are the prevention and control methods for sweet potato virus disease?

Sweet potato virus diseases can be spread through farm tools, aphids, wind and rain, etc., causing large-scale virus infection. Continuous cropping and improper field management will cause severe disease, resulting in a large reduction in sweet potato production.

Essentials of prevention and treatment:

1. Rotate crops reasonably, select disease-free and disease-resistant varieties, and use disinfectants before planting to reduce the spread of bacteria in seed potatoes and cultivate healthy and strong seedlings.

2. After the sweet potatoes emerge, spray the new lipid film 800 times solution in time to protect the plants to isolate the bacteria from infecting and prevent the virus-free seed potatoes from being infected with the virus. Timely control of aphids, whiteflies and other spreading pests to effectively reduce the source of viral diseases in the field.

3. Increase the intensity of field inspections, and remove and destroy diseased plants in a timely manner. Apply more phosphorus and potassium fertilizers, and spray Diguo Zhuangdiling + Baneda Bika potassium dihydrogen phosphate on the leaves to improve the sweet potato's ability to absorb water and fertilizer, and promote the rapid expansion and development of underground tubers. Ensure sufficient water and fertilizer supply in the field to promote high and high yields of sweet potatoes.

4. How to prevent and treat the estrus period of native chicken hens?

Farmers' free-range chickens generally have fewer diseases, are tolerant to roughage, and are far away from environmental pollution, which is conducive to disease prevention. However, due to the long breeding cycle and long-term exposure to pathogens, they may be poisoned by pesticides sprayed on crops. Therefore, the prevention of free-range chickens cannot be ignored. In addition to strengthening daily management, such as strict disinfection and isolated breeding to prevent diseases, it is very important to do a good job of immunization. Comprehensive diagnosis, the right medicine.

5. How to prevent and control rabbit diseases?

Preventing rabbit diseases means taking effective measures to prevent uninfected rabbits from getting sick. To this end, the following aspects must be done well:

First, scientific feeding and management should be carried out, feed should be properly formulated, attention should be paid to supplementing vitamins and essential mineral elements, the rabbit house and environment should be kept clean and hygienic, feeding tools, cages, farrowing boxes, etc. should be disinfected regularly, and dead rabbits should be handled promptly and safely.

The second is to vaccinate rabbits with rabbit vaccines in a timely manner, and add certain antibiotics and sulfonamides to the feed when necessary to improve the rabbits' disease resistance.

Third, it is necessary to formulate strict disinfection and epidemic prevention systems and specific measures to protect the rabbit population from infection by diseases and prevent them from happening.

Fourth, prevent rabbits from accidentally ingesting toxic substances, do not feed them green fodder contaminated by pesticides and moldy and spoiled feed, and use anthelmintics and other drugs correctly.

6. How to prevent and control sweet potato diseases?

(1) Symptoms are generally divided into two types: mosaic and fern. Symptoms of mosaic are: leaves are yellow and green, leaf shape is irregular, leaf surface is uneven, diseased vines are thin and weak, internodes are shortened, and fruits are deformed. Symptoms of fern are: heart leaves turn yellow, new leaves shrink and deform, small leaves and chicken claw leaves appear, plants are dwarfed, flower organs are poorly developed, and fruit setting is difficult. Fruits infected by the virus have tumor-like protrusions on the peel, are deformed, have hard flesh, have yellow blocks, are of poor quality, and cannot be eaten. (2) Prevention and control methods ① Remove weeds and kill aphids in the field in time to prevent insect transmission. ② Strengthen seed disinfection. Soak seeds in 10% sodium phosphate solution for 20 minutes before sowing, wash with clean water, germinate and sow, and inactivate viruses on the surface of seeds. ③ Strengthen field fertilizer and water management, apply sufficient base fertilizer, apply nitrogen fertilizer in time, strengthen irrigation, increase soil and air humidity, promote plant growth, and reduce damage. ④ Timely control of aphids, beetles, planthoppers, thrips, leafminers, root-knot nematodes, etc. ⑤ Timely early sowing or use simple small arch sheds to advance the fruit maturity and harvest period to avoid the peak of viral disease. ⑥ At the early stage of the disease, spray 500 times of 20% virus A wettable powder, or 1000 times of 15% plant disease emulsion, or 300 times of anti-toxic agent No. 1 and spray 0.2% potassium dihydrogen phosphate to enhance plant resistance. At the same time, remove diseased plants in time to avoid cross infection during manual pruning. ⑦ Choose disease-resistant and disease-resistant varieties, such as Watermelon Antivirus No. 1 and Watermelon Antivirus No. 3.

7. How to prevent and treat otolith disease?

Otolith disease is a chronic disease that requires multi-faceted prevention and treatment. Otolith disease mostly causes dizziness. If dizziness occurs, take anti-dizziness drugs in time. Otolith disease is mostly caused by otitis media. Be careful not to catch a viral cold, which aggravates ear inflammation and causes otolith disease. Also avoid injuries to the entire head, which can cause dizziness and trigger otolith disease.

8. How to prevent and treat soot disease?

1. Plum orange sooty mold is caused by the nectar secreted by scale insects or aphids. To prevent and control citrus sooty mold, scale insects and aphids must be controlled together to achieve good results. Use fenoxycarb plus methyl thiophanate, or buprofezin plus carbendazim, or thiamethoxam plus chlorothalonil, or acetamiprid plus cephalosporin acetate to spray on the leaves. Pay attention to spraying on cotton scale, aphids and sooty mold, which can kill scale insects and aphids and cure sooty mold.

2. Sooty mold is caused by the nectar secreted by piercing-sucking mouthparts pests such as aphids, thrips, planthoppers, whiteflies, scale insects, etc., and must be disinfected and sterilized at the same time to achieve a good control effect. Foliar spraying of buprofezin plus cintamanib acetate or acetamiprid plus methyl thiophanate or fenoxycarbendazim plus carbendazim or thiamethoxam plus chlorothalonil is very effective. Spray the leaves once every 7 to 10 days, and spray 2 to 3 times in a row to control the occurrence of damage. Add potassium dihydrogen phosphate to spray at the same time for better control effect.

9. How to prevent and treat mange in piglets?

It mainly depends on how many days the piglets are born. If the piglets are less than 6 days old and have yellow and white diarrhea, it is a problem with the sow itself, and the sow should be injected with a triple vaccine to prevent diarrhea in advance. If the piglets are more than 7 days old and have yellow and white diarrhea, give the piglets 1 ml of gentamicin orally for 2 to 3 days.

10. How to prevent and control apple rot?

Apples are fruits that can be stored for a relatively long time, but once they get rot, it is difficult to cure them. In serious cases, they can destroy a large orchard. So what are the ways to prevent and control apple rot? In fact, there are several ways!

The first one is the copper sulfate mud method. This method is particularly easy to use, but it is generally better not to use it because it contains a slightly higher level of chemical ingredients. So try not to use it if you can. If you want to use it, use 50% copper sulfate solution and add some clean fine soil, then mix it into a paste. Apply it evenly to the diseased area of ​​the apple, just make sure it is slightly larger than the actual area you apply it to!

The second method is the concentrated alkaline water method. This method requires the edible alkali we use when steaming buns at home and then add water to make a solution with a concentration of 1%. Use a small brush to evenly apply this prepared medicine to the scar area. Generally, it is brushed once every two days and it will take 3 to 5 days to complete the scar!

The third method is the sugar garlic liquid method, which is to crush the garlic that is not usually eaten and then mix it with vinegar. The ratio requirement is not very high, about 1:1. After the preparation is completed, leave it for about 3 days and apply it to the rotten part of the apple to see results quickly!

The fourth method is the oil application method. The oil application method mentioned here is not the oil we eat, but the butter we usually use. Apply this oil evenly on the scar. Generally, applying it three times in a row can basically achieve the desired result!

The fifth method is to apply human urine. It is best not to use this method publicly. If used publicly, it may affect the subsequent sales of the fruit. Just use a knife to make a small cut in the rotten part of the apple and then brush it with human urine about 2 times a day. Generally, it can be completely cured in about 5 days!

The sixth method is to use the table salt we use at home, add water and mix until evenly mixed, then apply it to the prepared salt water. Generally, it can be completely cured in about five days!

The seventh method is the re-bark scraping method. In August and October every year, the base of the trunk of the apple tree should be re-scraped, and about 1MM of bark should be scraped off. Generally, when scraping the rough bark and old bark, remember not to touch the bottom layer of the bark, otherwise it is very likely that the apple tree will be scraped to death.

The last method is to use iodine to treat the scars that have been scraped clean. Apply it once every 10 days on average, which means you can achieve the desired results in about a month!