PROBLEM TO BE SOLVED: To enable the diagnosis of vegetables, etc., through a communication network by a doctor (a specialist having the knowledge and skill on plant/tree, bird/fish, insect, etc.). SOLUTION: The state of plant/tree, bird/fish, insect, etc., is transmitted in the form of photographic image, mail/voice, etc., at the outbreak of diseases through a communication network such as Internet/cell phone and BS, etc., and the state is diagnosed by a specialist (corresponding to the doctor for human) having the knowledge and skill on plant/tree, bird/fish, insect, etc., to advise on an effective curing method and medicine. The curing tool and medicine can be purchased through the network. COPYRIGHT: (C)2006,JPO&NCIPI