1. Greenhouse cover: directly cover the insect proof net on the greenhouse frame, and compact it tightly with soil or bricks around it. The roof pressure line should be tightened to prevent strong summer winds from lifting. Leave the front door uncovered for easy access. Normally, close the door behind you to prevent butterflies and moths from flying into the shed and laying eggs. At the same time, it is necessary to regularly check whether the insect proof net has tears (especially if it has been used for a long time). Once found, it should be repaired in a timely manner to ensure that there is no invasion of pests inside the net.
2. Small arched shed covering: A bamboo or steel bar is bent into an arched shed and inserted into the field bed surface. The insect proof net is covered on the arch frame, and then water is poured directly on the net until harvesting, without lifting the net, and a fully enclosed covering is implemented.