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棉花蕾期受朱砂叶螨为害后，适量施用ＤＰＣ（缩节胺）可提高受害植株的耐害补偿能力，减少产量损失。其耐害补偿效应主要表现在棉株生长速率加快，缓解受害棉株株高、果枝数、结铃数受到的不良影响。其耐害补偿效应强弱取决于棉株长势水平和施用ＤＰＣ的剂量。朱砂叶螨为害棉花后具体施用ＤＰＣ的剂量需根据棉苗长势水平而定，以充分发挥ＤＰＣ增强受害棉株耐害补偿功能的作用。一般一类棉苗施用４次ＤＰＣ，总剂量为１４２．５ｇ／ｈｍ２，产量损失挽回率达１５．２％；二类棉苗施用４次ＤＰＣ，总剂量为１１２．５ｇ／ｈｍ２，产量损失挽回率达７．０４％；三类棉苗施用４次ＤＰＣ，总剂量为８２．５ｇ／ｈｍ２，产量损失挽回率达２％。根据上述试验研究结果，建立了不同ＤＰＣ剂量与各类棉苗长势水平和朱砂叶螨为害棉株后耐害补偿能力之间关系的理论模型。
Cotton bud stage by the damage caused by Tetranychus cinnabarinus, the amount of application of DPC (amylin) can increase the victims of plant damage tolerance, reduce the yield loss. The damage compensation effect mainly in the cotton plant growth rate to speed up to alleviate the affected plant height, number of fruit branches, the number of bolls affected by the adverse effects. The compensation effect of its resistance depends on the cotton plant growth potential and the dose of DPC. Dictamnus tetranychus infestation cotton DPC specific dose should be based on the level of cotton seedlings may be set to give full play DPC enhanced resistance to damage compensation cotton plant function. A class of cotton seedlings were treated with 4 times of DPC, the total dose was 142.5g / hm2, yield loss recovery rate was 15.2%; the second type of cotton seedlings were treated with 4 times DPC, the total dose of 112.5g / hm2, the loss of yield recovery Rate of 7.04%; three kinds of cotton seedlings 4 DPC application, the total dose of 82.5g / hm2, loss of recovery yield of 2%. Based on the above experimental results, a theoretical model was established for the relationship between different DPC doses and the growth potential of cotton seedlings and the ability of compensatory tolerance after infestation by T. cinnabarinus.