Common wilt diseases of peppers mainly include bacterial wilt, wilt, and root rot. Timely pesticide control is necessary. China Pesticide Network Xiaobian gives you the trick: Thrust Spherical Roller Bearing
A spherical roller thrust bearing is a rolling-element bearing of thrust type that permits rotation with low friction, and permits angular misalignment. The bearing is designed to take radial loads, and heavy axial loads in one direction.
Spherical roller thrust bearings are of separable construction, The shaft washer is assembled with the cage and a number of asymmetrical spherical rollers and has to be used along with a housing washer having sphered raceway. During mounting, the rings are to be fixed on to their respective seats – shaft washer on the shaft and housing washer on to the housing and then they have to be put together carefully They are manufactured in multiple series. Thrust Spherical Roller Bearing,Single Direction Spherical Roller Thrust Bearing,Thrust Ball Bearings For Detector,Hardness Thrust Spherical Roller Bearings Shijiazhuang Longshu Mechanical & Electrical Equipment Trading Co., Ltd. , https://www.lsjgbearing.com
Chili bacterial wilt disease 1. Symptoms: At the beginning of the disease, the top leaves of the plants wilted and drooped, then the lower leaves were withered, and finally the middle leaves were withered. There is also one side of the leaves first wilting or the whole leaves are wilting at the same time. At the time of initial illness, the diseased plants wilted during the day and recovered at night. After 2-3 days, the whole plant died of wilting and the dead plants remained green. The roots of the diseased plants often turn brown rot, the surface of the diseased stem is rough, and the roots of the stem are proliferated with adventitious roots. Some diseased stems can be seen with 1-2 cm brown spots. The stalks are visible in the stalks of the xylem. The cross-section of the stems is moisturized and the white turbid mucus overflows from the finger extrusion.
Second, the incidence of disease: pepper bacterial wilt, also known as pepper bacterial wilt, generally does not occur in the seedling stage, often after the results of the pepper began to show symptoms, the most serious disease in the summer. It is a typical bacterial soil vascular bundle disease. High temperature and high humidity, early in the rain, it is easy to promote the disease, especially after a long rain or heavy rain, the disease often outbreaks.
Third, the prevention and treatment methods 1, the implementation of 4-5 years of rotation, not with the Solanaceae, legume crops. Water and drought rotation can be implemented in areas where conditions permit, which is the most effective measure to prevent this disease.
2. Appropriate application of lime or grass ash during land preparation, high ridge and deep ditch in the field, and small water pouring when watering.
3, when not yet onset (generally in the initial stage of fruit setting), spray 70% succinic acid copper, or dibasic acid copper (DT) wettable powder 500 times, or 50% spring oxychloride copper (ie spring erodemycin + Wang Tong) (DTM) wettable powder 500-600 times liquid, or 14% lycopene copper water 300 times liquid, or 77% can kill wettable powder 500 times liquid, spray once every 7-10 days, even Spray 2-3 times.
4. Sporadic diseased plants appear in the field and are immediately removed. The diseased points are disinfected with 2% formalin solution or 20% lime water to prevent the spread of soil bacteria.
5. Spray 1:1:240 Bordeaux mixture or 100-150 mg/kg agricultural streptomycin at the beginning of the disease or after heavy rain. Spray once every 7-10 days, even spray 3-4 times to achieve a good disease prevention effect.
6. When the field disease continuation occurs, one of the following pesticides can be used to irrigate the root: 10-200 mg/kg agricultural streptomycin, or 40% bacterial spirit wettable powder 5000 times solution, each solution is 0.25-0.5 kg. Fill once every 10-15 days, even 3-5 times. At the same time of root irrigation, it can also be combined with spray control. The agent can use 72% agricultural streptomycin WP 2000 times solution, or 14% lycopene copper solution 300 times solution, or 77% can kill WP 500. Double liquid, or 50% succinic acid copper 500 times solution, or 50% DTM wettable powder 500 times solution, once every 7-10 days, even spray 2-3 times.
Capsicum wilt disease 1. Symptoms: Most occur during the flowering period. At the beginning of the disease, several leaves of the lower part of the plant wilted and drooped, and the whole plant appeared to be wilting from bottom to top. The mild diseased plants wilted at noon on sunny days, and returned to normal in the morning and evening and cloudy days. After several days, the diseased plants turned yellow and died, and the plants died in severe cases. The internal tissues of the roots and necks of the plants were browned, and the cortex was easy to fall off. For example, a small section of diseased stems was cut and placed in a test tube containing fresh water, and no white pus was discharged (this can be distinguished from bacterial wilt).
Second, the incidence of disease: the bacteria overwinter on the diseased body, can survive in the soil for many years. In summer, the incidence of rainy days is heavier, and the disease develops rapidly after the rain. It is easy to develop in the case of soil moisture, heavy weight, slightly acidic, poor drainage, continuous cropping for many years, and partial application of nitrogen fertilizer. The disease is severe in high temperature and high humidity environment. When the root knot nematode is seriously damaged in the soil, it can aggravate the development of the disease.
Third, prevention and treatment methods 1, with pepper root rot 1 .
2. Before the planting, use 1000 times of the anti-wet agent to carry out soil disinfection; when transplanting, use 800 times of the anti-kengsong or 600 times of the anti-dry spirit WP, and the toxic poison 3000 times to soak the root for 10-15 minutes. Plant, or mix 1 capsule of 150 antibacterial powder with 0.5 kg of rice bran (without adding water), soak the roots of the pepper seedlings and dip the roots. Add 1.5-2.0 kg of copper sulfate per acre when watering after planting.
3, spraying 50% fungicide carbendazim WP 500 times solution, or 40% polysulfur suspension 600 times solution, or 50% succinate copper WP WP 400 times at the beginning of the disease; Wettable powder 1000 times liquid spray or 600 times irrigation roots, 0.5 liter per plant when rooting, can be 2-3 times.
Capsicum root rot I. Symptoms: There are obvious symptoms in the upper part of the flowering stage. The leaves gradually turn yellow and withered from the bottom to the top. Generally, the leaves do not fall off, and the stems and leaves die in severe cases. The main root and the roots are rotten, and no lateral roots are produced. Under the wet conditions, the stem base has a pink mold.
Second, the incidence of disease: the bacteria can survive in the soil for more than 10 years, mainly relying on rain, irrigation water, unfertilized farmyard manure and agricultural tools to spread. Harm the cortex of the main root and the stem below the surface. High temperature and high humidity, low hydronephrosis, base fertilizer not decomposed, and many years of heavy sputum are important causes of this disease.
Third, the prevention and treatment methods 1, the implementation of 2-5 years of rotation; the use of high ridge cultivation, reduce soil moisture; timely clearing ditch drainage after the rain, timely removal of diseased plants.
2. When planting, use the anti-dry spirit wettable powder 600 times liquid, the virulent spirit 3000 times liquid to soak the root for 10-15 minutes, then transplant, or mix 150 raw antibacterial 1 bags with rice bran 0.5 kg (without water), The roots of the pepper seedlings were soaked in water and transplanted with roots. Add 1.5-2 kg of copper sulfate per acre when watering after planting.
3, after planting slow seedlings, the drug is 3000 times liquid, or anti-dry spirit 600 times solution, each time 250 ml per plant, 7 times a day, even irrigation 3 times. The pesticide network reminds everyone that if the disease is cured after the onset, it is necessary to increase the dose.
The raceway of the housing washer is at an angle with it`s ais of rotation, so as to be able to allow the rollers to remain in touch with it. As a result, a spherical roller thrust bearing is capable of carrying both a radial as well as an axial load. Spherical roller thrust bearings – because of their internal geometry – are capable of accommodating certain amount of misalignment. However, they can take axial loads only from one direction, and may need to be used in pairs in Back-to-Back or Face-to-Face arrangement, if thrust load from both the directions are to be carried.
Spherical roller thrust bearings are capable of compensating misalignment and shaft deflection.
The bearings are manufactured in normal accuracy. However, bearings with higher running accuracy can also be supplied.
Identification and control of common wilt disease in pepper