After years, cucumber leaves appear yellow spots, so it is necessary to strengthen cultivation management, ventilate more, irrigate with small water frequently, avoid flooding, and reduce the humidity in the shed. During the day, the temperature in the shed should be controlled at 25℃-28℃, preferably not more than 30℃. In addition, we should choose the right medicine and prevent and control it in time.

Try to avoid pruning, raking, picking fruits and other agricultural operations in the morning when the leaves are wet and dewy, so as to prevent germs from spreading with operators or operating tools.

In addition, cucumbers need more water but are afraid of waterlogging. Attention should be paid to watering and drainage in management. Water 1-2 times after planting, properly control the water before sitting on the melon, and increase the watering amount after planting. Cucumber in the open field grows in the rainy season in spring, so ditching and drainage should be strengthened.

Matters needing attention in planting cucumber:

1. In order to avoid high temperature and humidity, water under the film can be used to effectively reduce the air humidity in the shed, and the outdoor time can be controlled according to the temperature every day.

2. The air outlet needs to be completely covered with insect-proof net to prevent pests and birds from entering and effectively reduce the harm of pests. Cucumber should be produced safely to ensure quality.