本文研究了中国梨木虱 Psylla chinensis Yang et Li若虫期的排蜜规律及蜜露中氨基酸成分。结果表明 ,若虫随着龄期的增大 ,体重增加 ,日平均排蜜量也不断增多 ,每头夏型若虫一生排蜜量为630 3.38μg。在室内条件下 ,若虫排蜜量与昼夜节律有关 ,夜间排蜜量为一昼夜的 2 / 3。温度对若虫排蜜量有一定影响 ,在 2 5℃条件下排蜜量最大。若虫蜜露中氨基酸含量为 4 .4 5% ,其中天门冬氨酸和谷氨酸含量较高 ,分别占所测定的 17种氨基酸的 4 2 .11%和 2 7.5% ,蜜露中氨基酸的种类及含量与其所寄生的梨树叶片中氨基酸的种类及含量有密切关系 In this paper, we studied the rule of honey release and the amino acid composition of honeydew in Psylla chinensis Yang et Li nymph stages of Chinese pear psitts. The results showed that the nymphs increased with the increase of age and body weight, and the daily average amount of honey was also increased. The amount of honey discharged per summer was 630 3.38μg. Under indoor conditions, nymph excretion of honey and circadian rhythm, the amount of nectar discharge for a night and night 2/3. Temperature on the honey nymph excretion of a certain amount of honey, the maximum amount of honey at 25 ℃. Nectar honeydew amino acid content of 4.55%, of which aspartic acid and glutamic acid content, respectively, accounted for the measured 17 kinds of amino acids 42.1 1% and 2 7.5%, honeydew amino acids Species and content of the parasitized pear leaf amino acids in the species and content are closely related