How to protect greenhouse agricultural film in rainy season?

It is rainy in summer, and the arrival of the rainy season has both advantages and disadvantages for agricultural production. Adequate rainwater enables crops to be fully nourished. For greenhouse agricultural film, rainwater is easily irrigated from the periphery of the greenhouse agricultural film, resulting in the occurrence of some diseases and insect pests of vegetables. Therefore, some vegetable farmers do not remove the film and let the wind out when it rains. This is also a good way to prevent rainwater from pouring into the agricultural film of the greenhouse. harmful. Therefore, it is far from enough to just put a small wind on the top to cool down. In the arch shed, large air vents are opened from the lower part of the perimeter to release air and cool down. In order to prevent pests from outside the shed from getting into the shed, insect-proof nets are usually installed around the arch shed. Generally, the agricultural film on both sides of the arch shed is pulled up to a height of 50-60 cm, and the insect-proof net prepared in advance can be replaced, so that it can be formed in the arch shed.“hallway”, not only reduces the temperature and humidity in the shed, but also effectively prevents pests from entering.