Abstract
This paper proposes a method of judging whether pesticide use is propriety, and the effectiveness of this method is clarified through development of a pesticide use navigation system (Nouyaku-navi) judgment server and an operational test of that system. The term "Navigation system" is used because the system is intended to guide users through the choices involved in creating a pesticide use plan, much like a vehicle navigation system aids in route selection. Development of the Nouyaku-navi judgment server clarified the main functions that would be required if the system was to be practically used in the future. They are (1) the ability to judge the propriety of a pesticide use plan that includes pesticide product names (rather than pesticides registration number), (2) the ability to process electronic spray calendars of various styles, (3) a clear display of the consequences of a judgement for business. Development of the Nouyaku-navi judgement server highlighted the necessity of having a pesticide use planning support system. The server clarified that a pesticide misapplication prevention support function was required, and that completely automated judgment should not be the aim in system development. Rather, the system should support the gathering of a pesticide user's data and support their decision making.
