EN
Crop protection at growning under covers is very technically advanced, of ten with computerized environment control, fertigation systems and release of biological control agents. Substantial expertise is required first to finding information, understanding what it means, and then to integrating this information into farmer's own commercial operation and that is where the DSS are useful. The paper presents existing computer supporting systems for various production and protection programmes for horticultural crops grown under protection. The first decision expert system for integrated production and protection of tomato grown under covers developed by the inter-institutional and inter-disciplinary team of researchers in Poland was also included.