Tomato gray mold is an important disease in greenhouse tomato cultivation. The bacteria mainly invade the fruits, and the infection spreads from the remaining flowers and receptacles to the fruits or stalks, causing the peels to become grayish water stains, becoming soft and rotten; later on the fruit surface, flower buds and stalks, a large number of brownish brown mold layers appear. Dehydration is ossified. Botrytis cinerea also harms stems and leaves, and the adult stage lesions are found in the leaves. They develop from the edge to the "V" shape and produce the same ring pattern with a small amount of gray mold on the surface. The leaves finally die. The prevention and control methods are now described as follows:
1. Scientific management maintains the cleanliness of the shed membrane, increases light, timely ventilation, and reduces the humidity in the shed. It is required to maintain a relatively high temperature in the morning to dew the water on the top of the roof and prolong the release time in the afternoon. During the night, especially during the second half of the night, the temperature should be increased to avoid condensation on the foliage. Watering should be selected on a sunny day, avoid watering in rainy days, and at the same time, control the amount of watering, avoid flooding, and minimize the humidity.
3. Remove the diseased body in time The diseased leaves, diseased fruit and diseased branches should be promptly removed, packed in plastic bags, and brought out of the shed for centralized treatment to prevent the bacteria from re-infection.
4. Doing a good job of preventing and controlling chemical agents There are smoke, spray and dust spraying methods. Smoke can be smoked with 10% fast Keling smoke agent or 45% chlorothalonil smoke agent or 15% carbendazim smoke agent, with 200-250 grams per acre, placed in the evening branch, immediately closed after being ignited with dark fire Smoke one night, open the door the next day ventilation. The dust application is to close the greenhouse overnight after spraying 5% chlorothalonil dust (1000 g/mu). Spray can be used 40% Baifen wettable powder 1500 ~ 2000 times, 50% fast-inking wettable powder 1000 ~ 1500 times liquid, 50% acetaminophen wettable powder 1000 times, 70% chlorothalonil wettable Powder or 60% anti-mildew treasure wettable powder 600 times. Drug control should be started at the beginning of the disease, once every 7 days or so, continuous medication 2 or 3 times. After the spraying method, promptly ventilate and reduce the humidity. When using 2,4-D or anti-dropping agent (tomato spirit) to dip, add 50% scyklon WP or 50% acetaminophen wettable powder 1000 times in the dilution to prevent bacteria Infection, has a good control effect.
China Antibacterial Blend Suppliers
Here you can find the related products in Antibacterial Blend, we are professional manufacturer of Antibacterial blend. We focused on international export product development, production and sales. We have improved quality control processes of Antibacterial Blend to ensure each export qualified product.
If you want to know more about the products in Antibacterial Blend, please click the Product details to view parameters, models, pictures, prices and Other information about Antibacterial Blend.
Whatever you are a group or individual, we will do our best to provide you with accurate and comprehensive message about Antibacterial Blend!
Salicylic Acid,BHA,O-hydroxybenzoic acid,Allantoin
Xi'an Gawen Biotechnology Co., Ltd , https://www.ahualynbios.com