建立了病害发生的短期测报模型和材积损失率估测模型，确定了病害的防治指标和经济阈值。

Short term forecast model of disease development and wood loss rate are built. Control guideline and economic threshold value are decided.

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结论：中药毓明方可改善治疗区相对三维视野视点的平均视阈值，提示其对治疗性视网膜损伤具有防治作用。

Result and Conclusion:Yuming Prescription could improve the visual threshold and the prescription had a good function to therapeutic retina injury by laser.

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根据防治的直接收益与直接代价，算出了第三代棉铃虫的经济阈值为百株累计卵量35粒，这一阈值可适用于不同肥力水平的地块。

Based on the direct benefit and cost, the economic threshold of the third generation bollworm was calculated to be 35 eggs per 100 plants for all the levels of soil fertility.

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