First, ensure the quality of coverage
The insect-proof net should be completely closed and covered, with soil compaction around, and firmly fixed with the film line; After entering and leaving the large, medium and greenhouse doors, you must be careful to close them. The trellage should be significantly higher than that of the crop. The leaves should not be close to the insect control net to prevent pests from feeding or laying eggs on the leaves.
When growing tomatoes, for example, they are protected by a net for the entire planting period. The upper and lower tuyere of the shed, the vent of the back wall, and the two doors of the entrance and exit shall be sealed with insect-proof nets. Especially the two doors of the operation room, when there are personnel in and out, the curtain must be played back in place in time.
No gap should be left between the insect control net used for air vent closure and the transparent cover so as not to leave access for pests. Need to check and repair the holes and gaps in the insect net at any time.
Two, pest control treatment
Seeds, soil, plastic shed or greenhouse skeleton, scaffolding, etc., may carry pests and eggs. Before planting vegetables, it is necessary to carry out pest control treatment on seeds, soil, shed skeleton and shelf, which is the key link to ensure the cultivation effect of insect control net coverage.