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在5种恒温条件下,荔枝离节瘿螨的发育速率呈逻辑斯蒂曲线,其发育起点温度为9.70℃,有效积温为304.99日度。组建了26℃温度下产雌特征生命表(m_x)。在26℃温度下的内禀增长率r_=0.1236;净增长率R_o=16.1034;世代平均历期T=22.4770 d;周限速率λ=1.1316/d。南宁年发生14代。成螨过冷却点为-16.57℃。在18～32℃范围内,荔枝离节瘿螨的种群趋势指数呈抛物线趋势。在18.37～32.45℃范围内,该螨种群世代数量呈上升趋势,在最适温度下繁殖一代,种群数量约增加12倍。在18.37℃或32.45℃时,种群世代数量基本保持稳定。理论稳定年龄组配中,5种不同温度下未成熟期约占80%,成螨为20%左右。
Under five kinds of isothermal conditions, the development rate of litchi from Scabies mites was logistic curves, the starting temperature of its development was 9.70 ℃, the effective accumulated temperature was 304.99 days. A females-specific life table (m_x) was established at a temperature of 26 ° C. The intrinsic rate of increase at the temperature of 26 ℃ was r = 0.1236; the net growth rate was R_o = 16.1034; the average generational period was T = 22.4770 d; the rate of the limit was λ = 1.1316 / d. Nanning occurred in 14 generations. Mite overcooling point of -16.57 ℃. In the range of 18 ~ 32 ℃, the population trend index of Lychee from Scab had a parabolic trend. In the range of 18.37 ~ 32.45 ℃, the population of mite population showed an upward trend. After breeding at the optimum temperature, the population increased about 12 times. At 18.37 ℃ or 32.45 ℃, the number of population generations remained basically stable. Stable theoretical age group, five different temperatures, about 80% of immature, adult mites is about 20%.