Influence of relaive humidity on survival of the citrus leaf-minr, phyllocnistis cit- rella stainton (lepidoptera: ohyllocnisti- dae)

摘要

The relationships between relative humidity (RH) and survival rates of eggs, all larval stages and pupae of the citrus leaf-miner, phyllocnistis citrella Stainton, were determined by laboratory experi- ments. The survival of the citrus leaf-miner was observed at seven levels of relative humidity from 35 /100 RH to 95 /100 RH at intervals of 10 /100 RH, with 12 L:12 D photoperiod and temperatiure (29 ± 0.5) deg. C. The relative humidity was controlled by saturated solutions of MgCl2·6H_2O, K_2CO_3·2H_2O, C_6H_12O_6, NaNO_2, NaCl, KCl, and Pb(NO_3)_2.