Specific drug for cucumber leaf spot

If leaf spot disease occurs in cucumber growth period, it can be sprayed with difenoconazole solution, preferably once every two weeks, or with an appropriate amount of carbendazim solution. Before use, it should be diluted and sprayed continuously for 3 ~ 4 times to play the role of sterilization, but attention should also be paid to ventilation to keep the leaves dry.

I. Specific medicine for cucumber leaf spot 1, difenoconazole

Cucumber is prone to leaf spot disease during its growth and development. Once the disease occurs, the leaves will gradually turn yellow and wither. In general, difenoconazole is the main specific drug for cucumber leaf spot. It is a new type of antibacterial liquid, which is sprayed once every half a month when the disease occurs, and will not affect the cucumber yield.

2. carbendazim

When cucumber is damaged by leaf spot, carbendazim solution can also be used when the condition is serious. This drug is a broad-spectrum fungicide, which has little activity in soil and is mainly used to prevent and treat diseases caused by fungi. It is best to dilute the liquid medicine and spray it continuously for 3 ~ 4 times to play a bactericidal role.

Second, precautions for preventing cucumber diseases 1, pay attention to ventilation

Cucumber is a temperate crop, which grows rapidly in high temperature and high humidity environment. During the growing period, it is best to strengthen the air circulation of the surrounding environment frequently, and shade it properly in summer. In the high temperature season, attention should be paid to drainage treatment because of extending the light receiving time in autumn and winter.

2. Daily cleaning

Cucumber leaves are very sensitive to environmental changes. It is best to wash the leaves with clean water every time when applying fertilizer to ensure the cleanliness of the leaves. In the seedling stage or flowering and fruiting stage, loosen the soil regularly and remove the fallen leaves from the soil irregularly to avoid rot and breeding bacteria.