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采用田间多因子组合设计与计算机模拟寻优技术,组建了四川盆地西部平原及东南部丘陵稻区的病虫防治优化模型,提出了成组的病虫动态复合防治指标,评价出一批多抗品种及选择性药剂,将病虫防治措施与模式栽培融为一体,基本上协调了化学防治与保护天敌、丰产栽培与防治病虫两大矛盾。此项技术经生产性检验,平均每亩挽回稻谷损失34公斤以上,施药次数由原来的4～5次减少到2次,省工1～2个,平均每亩增收8元以上。有机氯农药在稻谷、稻草中的残留量未检出,土壤为痕量;有机磷杀螟松施用后当年测定糙米、米糠中的残留量均在国际允许标准（0.2ppM）以下。稻田蜘蛛增长40％以上,绒茧蜂增长1倍以上,生态环境进一步改善,经济、生态、社会效益十分明显。
Based on the multi-factorial design of field and the optimization of computer simulation technology, a pest control model was established for the pest and disease control in the western plain and southeastern hilly region of Sichuan Basin. Varieties and selective agents, the pest control measures and model cultivation integration, basically coordinated chemical control and protection of natural enemies, high yield cultivation and pest control two contradictions. The technology of production testing, the average loss of rice per acre retrieved more than 34 kg, the number of pesticides from the original 4 to 5 reduced to 2 times, saving 1 to 2, an average of more than 8 yuan per mu income. The residues of organochlorine pesticides in rice and straw were not detected, and the soil was trace. The residues of brown rice and rice bran in the same year after the application of organophosphate fenitrothion were all below the internationally accepted standards (0.2 pM). The spider in paddy fields increased by more than 40%, the velvet callus increased more than one time, the ecological environment was further improved, and the economic, ecological and social benefits were obvious.