In May and June, when the temperature is between 25°C and 30°C, and the humidity of the soil and air is small, tomato virus disease can be easily induced. Tomato virus disease is an invasive disease caused by single or mixed infections of many viruses, including tobacco mosaic virus and cucumber mosaic virus.
Common types of viral disease manifestations:
1. Mosaic virus disease. One is that the leaves on the leaves cause microscopic mosaics and micro-splits, the plants do not dwarf, the leaves do not deform, and they have little effect on the yield. The other is a clear mosaic, the leaves are elongated and narrow, distorted and deformed, the plants are short, and a large number of flowers fall buds. The fruit is of small quality and is mostly flower-faced, which has a great influence on the yield.
2. Stripe virus disease. Vein necrosis or dissemination of black-brown, oily, necrotic spots followed by spreading of the petiole to the stem. The dark green subsidence streaked, and the necrotic streak that became deep brown subsidence gradually spread and expanded, causing the diseased plant to chlorosis and die.
3. Loose leaf virus disease. The leaves are yellow-green and rolled up. The leaf veins on the back of the leaves appear lavender, and distorted linear leaves are formed due to the degradation of the mesophyll tissues. The plants are clustered, dwarfed and small.
Control methods:
In the prevention and control of tomato virus disease, comprehensive prevention and control measures based on agricultural control shall be adopted.
1. Use resistant varieties. According to the local conditions, choose anti-virus disease varieties according to local conditions.
2. Seed disinfection. Seeds soaked with fresh water for 3-4 hours before sowing, and then soaked in 10% trisodium phosphate solution for 30-40 minutes, remove and rinse with clean water. When planting, use plots that have not been grown or have not had tomato virus disease.
3. The rotation is changed. Avoid intercropping and continuous cropping, thoroughly remove poisonous weeds and sick bodies, and implement a 2-3 year rotation to reduce the occurrence of diseases.
4. Cultivation measures. First, do a good job in the cultivation and disease prevention measures before planting, and cultivate disease-free and strong seedlings; second, timely planting early to promote strong seedlings; and third, re-apply base fertilizers, increase phosphorus and potash fertilizers, pay attention to cultivating and weed control, and timely soil cultivation, and late Snoring, early harvesting, separate management of sick and healthy plants. Water and fertilizer management should be strengthened at high temperatures and droughts.
5. Early prevention of aphids and whiteflies. Early prevention of aphids and whiteflies can prevent the occurrence and spread of cucumber mosaic virus. Can use 50% anti-inferiority WP 3000 times or 2.5% Kung Fu EC 4000 times spray control.
6. Chemical control. In the early stage of disease, it can be sprayed with 1.5% of the diseased and diseased emulsion or 800 times of 20% virus A wettable powder 500 times, sprayed once every 5-7 days, and even sprayed 2-3 times, the effect is better.
Medical Cold Patch
Patch for diarrhea
[Name] Medical Cold Patch
[Package Dimension] 5cm 4pieces/box
The pain relief patch is composed of three layers, namely, backing lining, middle gel and protective film. It is free from pharmacological, immunological or metabolic ingredients.
[Scope of Application] For cold physiotherapy, closed soft tissue only.
[Indications]
The patches give a fast relief for diarrhea.
[How To Use a Patch]
Please follow the Schematic Diagram. One piece, one time.
The curing effect of each piece can last for 6-8 hours.
[Attention]
Do not apply the patch on the problematic skin, such as wounds, eczema, dermatitis,or in the eyes. People allergic to herbs and the pregnant are advised not to use the medication. If swelling or irritation occurs, please stop using and if any of these effects persist or worsen.notify your doctor or pharmacist promptly. Children using the patch must be supervised by adults.
[Storage Conditions]
Store below 30c in a dry place away from heat and direct sunlight.
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