The toxicity of acetone extract from Eugenia caryophyllata Thunb and its effects on several esterases of Tetranychus piercei McGregor were studied by leaf immersion and ultraviolet spectrophotometry.

• 采用叶片浸渍法和分光光度法研究了大叶丁香(Eugenia caryophyllata Thunb)丙酮提取物对皮氏叶螨(Tetranychus piercei McGrvgor)的毒力及其代谢酶活性的影响。