What are the specific drugs for the prevention and treatment of gray mold?

Botrytis cinerea is a common and difficult fungal disease in open field and protected crops. it is a disease of low temperature and high humidity. The pathogen grows at a temperature of 20: 30 ℃, a temperature of 20: 25 ℃ and a humidity of more than 90%. It is a high incidence period caused by Botrytis cinerea infection, and flowers, fruits, leaves and stems can all occur. Let's take a look at the specific drugs for the prevention and control of Botrytis cinerea.

Pyrimidine

Pyrimidine is a new type of fungicide, which belongs to aniline pyrimidines, and its action mechanism is unique. It can prevent bacteria from infecting and kill bacteria by inhibiting the production of bacteria infection enzymes. It is effective against Botrytis cinerea that have developed drug resistance to commonly used non-aniline pyrimidines (benzimidazoles and carbamates).

Pythium benzoate

Pythalide mainly inhibits the synthesis of triglycerides in bacteria and has the dual functions of protection and treatment. It has good internal absorption and good conditions of low temperature and high humidity.

Carbendazim

A fungicide with cross-resistance to carbendazim. After entering the cell, the fungicide binds to the tubulin in the cell, thus affecting cell division. This mode of action is very similar to carbendazim, but the two are not at the same point of action. For example, once Botrytis cinerea becomes resistant to carbendazim, it is very sensitive to carbendazim. On the contrary, Botrytis cinerea, which is sensitive to carbendazim, has no antibacterial activity.

Ethyl carbendazim

After entering the cell, the drug binds to the tubulin in the cell, which affects cell division and has cross-resistance to carbendazim and negative cross-resistance to carbendazim. Botrytis cinerea is also resistant to carbendazim and is very sensitive to carbendazim. Generally, it is not used as a single agent.