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棉苗使用生长调节剂——缩节胺后，叶片变绿加厚。使用浓度２０ｐｐｍ时，叶片总厚度达２８３．８９μ，比对照增加２０．３５％；下表皮与海绵薄壁细胞组织之和达１４５．７８μ，比对照增加１８．５％，超过朱砂叶螨［Ｔｅｔｒａｎｙｃｈｕｓｃｉｎｎａｂａｒｉｎｕｓ（Ｂｏｉｓｄｕｖａｌ）］雌成虫的口针长度。在喷施缩节胺的叶片上叶螨取食受阻，繁殖率下降２２．６７％。使用缩节胺浓度增至１６０ｐｐｍ时，棉叶下表皮与海绵薄壁细胞组织总厚度达１６４．９０μ，比对照增加３４．０７％，叶螨繁殖率下降４５．７％～５７．３３％。田间试验亦证明，棉株喷洒缩节胺后，朱砂叶螨为害减轻，棉株蕾铃脱落减少，产量增加
Cotton seedlings using growth regulators - Dimamine, the leaves turn green thicker. When the concentration was 20ppm, the total leaf thickness was 283.89μ, increased by 20.35% compared with the control. The sum of the epidermal and sponge parenchyma cells was 145.78μ, increased by 18.5% compared with the control, more than Tetranychuscinnabarinus (Boisduval)] female adult needle length. Sparging on the contraction of amine leaves spider mite feeding hindered reproduction rate decreased 22.67%. When the concentration of acetamide was increased to 160ppm, the total thickness of the epidermal and sponge parenchyma cells in the cotton leaves reached 164.90μ, increased 34.07% compared with the control, and the reproduction rate of spider mites decreased 45.7% -57.33%. Field trials also proved that cotton plant spraying ammonia, the damage caused by Tetranychus cinnabarin mitigation, cotton boll fall off, yield increased