What to do about dripping greenhouse film? These measures can effectively prevent it

When dripping occurs from the film covering greenhouse vegetables, it raises the air humidity inside the greenhouse. When water droplets fall onto vegetable leaves, they form a film of water on the leaves, creating favorable environmental conditions for pathogen infection and development, and triggering vegetable diseases.

Causes of dripping from greenhouse film:

First, because the anti-drip film used as cover is of poor quality, the evaporated moisture does not flow down the inner surface of the film in the form of a water film, but instead forms droplets that drip down;

Second, because when the film-like water on the film flows downward, it is blocked by wire, arch frames and other building materials, forming droplets that keep dripping.

Measures to take to avoid dripping:

First, cover with high-quality anti-drip film. Although the one-time investment in the film increases, there is less dripping inside the greenhouse, lower humidity, milder disease occurrence, less spraying, and higher vegetable yield and better quality.

Second, build the greenhouse lighting surface as an arc-shaped lighting surface, to avoid the film directly contacting the wire and causing a large amount of dripping.

Third, spray bean flour water or anti-drip agent. If a lot of droplets are found on the greenhouse film, you can spray anti-drip agent (silicone additives, etc.) or bean flour water on the film. Note that before spraying, ventilate first, and after the droplets on the greenhouse film have dried, spray evenly onto the inner surface of the film, spraying 120-150 ml of liquid per square meter of film, and after the water film dries, close the ventilation openings. This can significantly reduce dripping within half a month to one month.