Abstract: Life tables of the laboratory population of Lygus lucorum Meyer Dür at five different temperatures (17, 20, 23, 26 and 29℃) were constructed．The results showed that the developmental rate of L. lucorum increased with the increment of temperature at 17-32℃, and the relationship between them could be simulated by the Logistic model. The developmental durations of nymph, preoviposition, egg and generation were 10.04-27.63, 8.33-19.33, 6.74-15.00 and 25.11-61.96 days at the experimental temperatures, respectively. The threshold temperatures of nymph, preoviposition and egg were 9.45, 7.28 and 6.28℃ with effective accumulated temperatures of 210.25, 191.83 and 160.12 day-degree, respectively. The effective accumulated temperature of the whole generation was 555.04 day-degree. The generation survival rate, preoviposition time, number of nymph produced by one female and population trend index all reached the highest at 23℃, being 82.30%, 41.67 days, 35.42 and 14.58, respectively. Population trend index at 17℃ and 29℃ were 8.44 and 9.06 respectively, which were not suitable for the incre ment of L. lucorum population.

Key words: Lygus lucorum, temperature, life table, effective accumulated temperature, population trend index