A harvesting program system iteratively generates current harvesting programs for performance by harvesting equipment on a mushroom bed. The system receives current mushroom bed data corresponding to the mushroom bed including growing mushrooms at the current times. The system processes the current mushroom bed data using a mushroom bed model to generate current virtual mushroom beds corresponding to current states of the mushroom bed at the current times. The mushroom bed model is trained using labelled training mushroom bed data including known values of the mushroom bed, and using previously-generated virtual mushroom beds corresponding to predicted states of the mushroom bed. The system generates using the mushroom bed model predicted virtual mushroom beds corresponding to predicted states of the mushroom bed at future times. The system generates current harvesting programs based on the predicted virtual mushroom beds, and transmits them performance by the harvesting equipment on the mushroom bed.