Abstract
After investigation and analysis of the practice of pesticide application in the protected horticultural fields of the Agricultural Experimental Zone in Pudong district, Shanghai, China, analytic hierarchy process (AHP) was applied to evaluate 5 alternative pest-control strategies (including three gray insect-proof net rooms (with mesh) of different height, white insect-proof thin film rooms (without mesh) and normal control and prevention areas (without any covering nets or thin films)). Comprehensive Profit (CP) and Comprehensive Cost (CC) were used in this paper to analyze the superiority of different strategies in protected horticultural fields for pest management. CP and CC of the pest-control strategies were used as the targets of AHP, in which CP was classified into economic, social and ecological profit, while CC was split into economic, social and ecological cost. Ratio of Comprehensive Cost to Comprehensive Profit (RCCCP) was calculated by dividing Comprehensive Cost (CC) by Comprehensive Profits (CP). According to the analysis, the best strategy was to apply gray insect-proof net rooms of 2.2 m high and 360 (12 m × 30 m) square meters in protected horticultural fields for pest management.
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