The incidence temperature of gray mold is 18-23°C, and the relative humidity is more than 90%. It is a common disease in the low-temperature and high-humidity environment in winter greenhouses, and the temperature in the spring shed is generally 20-28°C. Humidity is not large, and it is reasonable to say that it is not suitable for the survival of Botrytis cinerea. However, the current situation is that the incidence of gray mold is serious. In this regard, the reporter specifically consulted the special expert Yin Jingtang of the newspaper. Professor Yin briefed the reporter on the serious causes and prevention and control measures of gray mold in the spring. There are three main causes of severe gray mold disease in spring: First, a large number of pathogenic spores spread. Botrytis cinerea spores have strong vitality. When they occur in winter, they are not timely controlled and accumulate a large amount of spores. With the arrival of spring, the ventilation in the greenhouse is strengthened, and spores are transmitted in large quantities, resulting in a large area of ​​disease. Second, the night temperature in spring sheds is suitable for gray mold. The temperature of the onset of Botrytis cinerea in the spring is only suitable at night, and the night temperature in the shed is generally 18-20°C. In addition, the humidity in the night shed is relatively large, which creates suitable conditions for the occurrence of gray mold. Third, prevention and control methods are not suitable. It is not enough to rely on spraying pesticides to control botrytis. This will only increase the humidity in the shed and cause the disease to be difficult to control. Professor Yin proposed several suggestions for the prevention and treatment of gray mold in the spring. First, take high-temperature stuffy sheds. Botrytis cinerea in the shed temperature higher than 31 °C, the spores germinate faster, higher than 33 °C, it does not produce spores, when the temperature is high in the spring at noon, the temperature of the shed can be raised to above 40 °C, stuffy shed 1- 2 hours to suppress the development of the disease. Second, the use of smoke agent shed. The spray we usually take is not effective in the spring. The spray can only cover the plants and part of the ground. However, the columns, back wall and roof can hardly reach the floor, leaving a large living space for the gray mold. The use of smoke agent can solve this problem, smoke will cover the entire greenhouse, can effectively kill the bacteria, you can use the sclerotium net 200 g / acre, procymidone 400 g / mu smoked shed, but pay attention to the time not More than 8 hours to prevent the occurrence of phytotoxicity. And the shed will not increase the humidity in the greenhouse. Finally, the medicament sprays or sips the flowers and promptly removes rotten leaves. Botrytis cinerea can easily invade from the residual flowers and invade the young melons and stems and leaves. In order to prevent the occurrence of gray mold, according to the characteristics of different crops and drug dosage can be taken to spray flowers or flowers, the application of the agent is mainly for the opening of the broken flowers, can be appropriately increased drug metering, cut off the path of pathogen infection, available Propionine 400-500 times liquid or ethylene nucleus benefit 400-500 liquid silicone additives. At the same time, rotten branches and rotten leaves are also very susceptible to gray mold, usually management should pay attention to timely removal, help reduce the incidence of gray mold.
Electric Over Blanket is similar to Electric Under Blanket, but a bit different.
Electric over blanket is used by covering human body to keep warm.
Normally electric over blanket is not recommended to be used during sleeping, as it might cause overheating, although it has the function of overheating protection.
Normally over blanket shuts off after 2 hours, for the sake of safety.
Below image as reference:
Electric Over Blanket
Electric Over Blankets, Heating Cover Blanket, Heated Over Blanket, Electric Warming Blanket
Ningbo JustLive Electrical Appliance Co., Ltd , https://www.makeheat.net