Tomato gray leaf spot disease is one of the main diseases of tomato. The incidence of tomato gray leaf spot is 100% when it occurs seriously. If it is not timely, it will have a great impact on the yield. Linyi Fertilizer Network Copyright
Linyi Fertilizer Network Copyright
I. Symptoms: Tomato gray leaf spot is mainly harmful to leaves and fruits. At the beginning of the disease, the leaf surface is covered with dark round or irregular small spots, and the posterior along the veins expands to the periphery, showing an irregular shape. The middle part gradually fades to grayish to taupe, the lesions are slightly concave, and the smaller, extremely thin, late Easy to rupture, perforate or fall off. The fruit is infected with large round depressions, white hair, and then gradually brown, and finally black, causing fruit to rot. Linyi Fertilizer Network Copyright
Linyi Fertilizer Network Copyright
Second, prevention and treatment methods: 1. Strengthen field management, increase the application of bio-organic compound fertilizer and phosphorus and potassium fertilizer, spray love and harvest foliar fertilizer to enhance its disease resistance. 2. In the early stage of the disease, spray 52% of the quick water purification agent 1800 times or 68% easy to retain the water retention agent 1300 times, 47% of the ruixiang WP 700 times, 75% chlorothalonil WP 600 times, 7 to 10 days 1 time, continuous prevention 2~3 times. Linyi Fertilizer Network Copyright
Total 1 | <First <Prev 1 Next> Last> |
share to:
Hot Tub is typically used to refer to an above-ground portable spa. A hot tub or portable spa is a completely self-contained vessel. All of the plumbing, as well as the electrical control system and other components, are built inside the hot tub cabinet. This means that there is no plumbing required. A hot tub is filled with a garden hose, can be drained anytime, and can even be relocated to a new home if you move.
One of the best thing about hot tubs is their ability to hold a set temperature. Thanks to advancements in technology, you can set a selected temperature and expect your hot tub to be hot and ready to use anytime you are. There is no need to wait for the hot tub to heat up.
Hot tubs can range from very simple designs with a few jets to intricate acrylic shells with an extremely high jet count. Hot tubs today have come a long way from the round redwood vessels of the past, and generally offer a much better experience than in-ground spas because they are more comfortable, more energy efficient,esaier to care for , and provide better massage.
SPA Hot Tubs
Hot Tub Spa,Hot Tub,Portable Hot Tub,Small Hot Tubs
Pinghu Relax Sanitary Ware CO.,ltd , https://www.relaxsanitary.com