This year, the tomato planting area in summer greenhouses in our province is larger. According to last year's tomato disease incidence and prevention and treatment experience, prevention and treatment of tomato leaf curl virus disease are summarized and summarized for the reference of farmers.

After the infected plants became infected, the yellowing of the upper leaves became smaller and the leaf margins curled up. The leaves shrank and curled, the internodes became shorter, the flowering results were difficult, the fruit type was small, and the ripening was slow. The diseased plants grew slowly and became dwarfed.

Harmful Tomato Leaf Curl Virus Disease is a devastating disease that can develop from seedling to harvest. Tomato leaf curl virus disease began to spread between individuals affected by B. tabaci, and then gradually expanded the scope of the disease, and can be spread through agricultural operations such as pests and farmers in the management of snoring. In summer and autumn of 2006, the disease occurred in a large area in Zhejiang and other provinces. From August to October 2007, the disease occurred in Fugou County of our province. The commonly occurring plots of tomato leaf curl virus disease can reduce production by 50% to 80%. In severe cases, there is no fruit in the whole shed. There is currently a tendency to spread from south to north.

The key to prevent and cure tomato leaf curl virus is to prevent the occurrence and harm of Bemisia tabaci in the early stage of tomato. About one month after seedling and transplanting is the most critical period for the control of Bemisia tabaci. Use 40 to 60 mesh insect-repellent nets when raising seedlings to prevent the entry of whiteflies. At the same time, spray the systemic drug Aketai 2500 times. Before transplanting, use Aketai 2500 times to irrigate the roots. The validity period is 20 months. ~30 days, not only can prevent the occurrence of pre-blight fly whitefly, but also can play the role of strong seedlings; after transplanting, the greenhouse vents should be closed with more than 40 mesh pest control nets, the best hanging pest control board, found In the case of tobacco whitefly, it is necessary to carry out drug control. A better control method is to tightly vent the shed, use fumigant to fumigate it once in the evening, and use Aktai 2500 times for spraying prevention the next day. Once onset, in addition to spraying insecticides to control Bemisia tabaci, it is also necessary to spray the agents that prevent and treat the disease, such as virus A, triazophosazole, phytopathogenic spirit, and Ningnanmycin. High temperature and drought are also the conditions for the occurrence of Tomato Leaf Curl Virus disease. It is well ventilated, hard to pour, and reduces the temperature inside the shed. It can also effectively prevent the occurrence of the disease.

Executive Broad Base Roll Up

1. Compact size: The 20cm wide base Roll Up Stand is compact in size and can be easily transported from one place to another.

2. Lightweight: The roll up stand is lightweight and can be carried by a single person.

3. Easy to assemble: The roll up stand is easy to assemble and can be set up in a matter of minutes.

4. Durable: The roll up stand is made of high-quality materials that make it durable and long-lasting.

5. Retractable banner: The roll up stand comes with a retractable banner that can be easily pulled up and down.

6. High-quality graphics: The roll up stand is designed to display high-quality graphics that are eye-catching and attractive.

7. Adjustable height: The roll up stand comes with an adjustable height feature that allows you to adjust the height of the banner as per your requirement.

8. Stable base: The roll up stand has a stable base that ensures that it does not tip over or fall down.

9. Easy to store: The roll up stand can be easily stored in a compact space when not in use.

10. Versatile: The roll up stand can be used for a variety of purposes such as trade shows, exhibitions, conferences, and events.

Executive Broad Base Roll Up,Flex Banner Stand Printing,Broad Base Roll Up Banners,Wide Base Roll Up Banner

SUZHOU JH DISPLAY&EXHIBITION EQUIPMENT CO.,LTD , https://www.jh-posterstand.com