What kind of pesticide do cucumbers usually use?

Cucumber is one of the common vegetables, which is widely cultivated in China, and it is cultivated in greenhouse or plastic greenhouse in many areas. So, what kind of pesticide do cucumbers usually use?

In general, cucumber does not need to use medicine, if it is the occurrence of diseases and insect pests, it is necessary to use the corresponding pesticide control. The main diseases are downy mildew, gray mildew, powdery mildew, virus disease, bacterial corner spot and so on. The main pests are root-knot nematode, whitefly and so on.

1. Downy mildew: at the initial stage of the disease, 75% chlorothalonil wettable powder 500 times can be sprayed; when the disease is more serious, 58% nail cream manganese zinc wettable powder 500 times liquid, 69% enoyl manganese zinc wettable powder 800 times liquid spray, spray once every 7 days, continuous prevention and treatment for 2-3 times.

2. Botrytis cinerea: at the initial stage of the disease, pesticides such as 1500-fold solution of 50% prohydantoin wettable powder, 2.5% Shile wettable powder, 50% Rimecan, 25% acimida suspension and other pesticides can be used every 6-7 days for 3-4 consecutive times.

3. Powdery mildew: spray or coat branches with Baume 3-5 degrees of stone-sulfur mixture diluent during overwintering; spray protective agent before onset, spray inhaler after onset; spray 20% tetrafluoride when disease occurs. Pesticides such as pyrazole ester, 1000-fold solution of 15% trimethoprim, 1000-fold solution of 2% antimycin, 1000-1500 times of polyantimycin and other pesticides were used alternately.

4. Virus disease: at the initial stage of the disease, 20% doxorubicin 500 times solution and 20% virus A500 solution can be sprayed once every 7 days.

5. Bacterial angular spot: at the initial stage of the disease, pesticides such as 5000 times of neophymycin, 30% copper succinate (DT sterilization) wettable powder, 77% killing wettable powder, 47% Jia Ruinong wettable powder and other pesticides can be used alternately and sprayed 3-4 times every 7-10 days.

6. Root-knot nematode: soil disinfection: before planting, 80 kg of lime nitrogen is applied in combination with deep ploughing mu, soil is disinfected with 1.8% Zongmike EC 1-1.5ml per square meter with 6 liters of water, or 4-6kg per mu of Milol 3% granule, mixed with 50 kg dry fine soil; during the growing period, 1.8% Zongmike EC 1000-1500 times was used to irrigate the root 1-2 times, 10-15 days apart.

7. Whitefly: at the initial stage of occurrence, pesticide sprays such as 10% imidacloprid 400-600 times, 10% buprofezin EC 1000 times and 25% buprofezin EC 1500 times can kill eggs, nymphs and adults, usually once every 5-7 days, and spray 2-3 times in a row. Pesticides such as 1000-fold EC, 1500-fold EC, 2000-fold EC of 2.5% Uranus, 3000-fold 21% EC and other pesticides can also be sprayed 3-4 times every 5-7 days.