Screens can exclude certain pests from greenhouses and therefore reduce the need for pesticides on greenhouse crops. They can perhaps also be used to create a small production area for biological control organisms within the greenhouse. When selecting a screen for either use, the pore size in the material is an important factor.

Screens with a small pore size are more effective in preventing pest entry and promoting biological control organisms.

Paper

Screens deny specific pests entry to greenhouses

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