What should I pay attention to when using ethephon?

Matters needing attention when using ethephon:

1, should be sprayed when the weather is clear, the temperature is 20-30 degrees, and the temperature is lower than 20 degrees, and the dosage should be increased appropriately. If it rains within 5 hours after application, it should be sprayed again.

2. Ethephon cannot be mixed with alkaline pesticides, nor can it be mixed with alkaline pesticides, nor can it be diluted with strong alkali water. It's time to use the potion. In order to improve the efficacy, 0. 1% neutral washing powder can be added to the aqueous solution as a performance active agent.

3. The spraying concentration of liquid medicine should be strictly controlled. If it is used to ripen hawthorn, it will cause phytotoxicity and cause the leaves to fall off. If it is lower than 600MG/KG, it will not achieve the purpose of ripening. At the same time, we should pay attention to crop varieties and plant growth potential, and determine the concentration according to local conditions.

4. When applying ethephon in the later stage of crops, it should be harvested in time to avoid over-ripening. Some fruits still have ripening effect after harvest, which should be considered when harvesting.

Extended data

Ethephon, like ethylene, mainly enhances the ability of RNA synthesis in cells and promotes the synthesis of protein. In the abscission zone of plants, such as petiole, fruit stalk and petal base, the synthesis of protein increases, which promotes the re-synthesis of abscission zone cellulose, because it accelerates the formation of abscission zone and leads to organ shedding.

Ethephon can enhance the activity of enzymes, activate phosphatase and other enzymes related to fruit ripening, and promote fruit ripening. In aging or susceptible plants, the change of peroxidase is caused by ethephon promoting protein synthesis. Ethylene can inhibit the synthesis of endogenous auxin and delay plant growth.

One molecule of ethephon can release one molecule of ethylene, which has the functions of promoting fruit ripening, stimulating bleeding and regulating gender transformation.