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在防治棉蚜的田间小区试验中，保苗剂９号和１号处理棉种（药剂∶种子＝１∶５０，下同）防治效果最好，维持８９．１％以上的防效达３０ｄ；其次为保苗剂８号，３０ｄ平均防效为７７．９％；保苗剂２号对棉蚜无效。４种保苗剂处理棉种对棉花安全，其出苗率和保苗效果均显著高于对照。温室外试验结果表明：不同温度和湿度对包衣棉种出苗率和保苗效果的影响很大。不同温度条件下，土壤湿度在１９．８４％～１９．９６％时的出苗率远远低于对照；平均温度为１３．３℃，土壤湿度为２７．５６％时，经种衣剂２４号处理的棉种的出苗率、保苗效果最好；土壤湿度为２４．６５％时，保苗剂９号处理的出苗率保苗效果较好。平均温度为２１．２℃，土壤湿度为２２．７５％时，种衣剂２４号和保苗剂９号处理的出苗率较高，保苗效果是对照的１．０６～１．１６倍。另外，还采用了新的统计方法来评价持效期较长的保苗剂的防虫效果
In the field plot test of cotton aphid control, seedling agent No. 9 and No. 1 treated cotton seed (agent: seed = 1:50, the same below) had the best control effect, maintaining 89.1% of the control effect for 30d; To protect seedling agent 8, 30d the average control effect was 77.9%; seedling agent No. 2 on the cotton aphid ineffective. Four kinds of seedlings to protect cotton seed cotton security, the emergence rate and seedling effect were significantly higher than the control. The results of the greenhouse experiment showed that the effects of different temperature and humidity on the seed germination rate and seedling preservation effect of the coated cotton seedlings were significant. Under different temperature conditions, the germination rate of soil moisture at 19.84% ~ 19.96% was much lower than that of the control; the average temperature was 13.3 ℃ and the soil moisture was 27.56% Treated cotton seedling emergence rate, the best seedlings; soil moisture of 24.65%, seedling agent No. 9 treatment of seedling seedling effect is better. When the average temperature was 21.2 ℃ and the soil moisture was 22.75%, the germination rate of seedling agent No.24 and seedling maintenance agent No.9 was higher, and the seedling protection effect was 1.06-1.16 times that of the control. In addition, a new statistical method was also used to evaluate the pest control effect