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１９８４—１９８９年，在西双版纳、临沧植胶区以生产上的主要种植品系为材料，采用人为控制病情的方法，通过小区比较试验、生产性试验和验证，多次重复测定白粉病严重度对胶树群体产胶、产果量，以及季风性落叶病的影响。其结果表明：干胶产量损失率与病害严重程度呈曲线关系，轻病对干胶产量无明显影响，中病不但不减产反而显著增产，重及特重病才显著减产；保留中等程度的白粉病，不但干胶产量有所增加，而且还可以达到明显控制季风性落叶病的目的；故中等病情既是经济上容许的病害水平，又是最经济合理的防治标准；白粉病严重落叶后在保护好第二蓬叶的前提下不休割，可以减少休割造成的损失，另外，在保证次年轻或中病条件下也不会明显影响次年的干胶产量。
1984-1989, in Xishuangbanna, Lincang planting areas to the production of the main planting lines for the material, the method of artificial control of the disease, through cell comparison test, productive test and verification, multiple repeated determination of powdery mildew severity Gum tree gum production, fruit yield, and monsoon deciduous disease. The results showed that there was a curve between the yield of dry gum and the severity of the disease. The mild disease had no obvious effect on the yield of dry gum. The disease not only reduced the yield but increased yield significantly, , Not only increased dry gum production, but also can achieve the purpose of significant control of monsoon deciduous disease; so the intermediate condition is not only an economically tolerable level of disease is the most economical and reasonable control standards; powdery mildew in the protection of a good The second Puffy under the premise of not cut, you can reduce the loss caused by the break, in addition, to ensure that the next young or sick conditions will not significantly affect the dry production of the following year.