The effect of temperature on the development and survival of Thrips hamaiiensis(Morgan)

Thrips hamaiiensis( Morgan) was tested at five contest temperature( 14,18,22,26℃ and30℃) in the laborary to investigate the development periods of their different development stages and calculate their development threshold temperature、effective accumulated temperature and survival rate. The results showed that the development period of different development stages shortened with the temperature increasement,the relationship between temperature and development speed of each life stage fitted with liner model. The development start temperature of Egg,Nymphae Ⅰ,NymphaeⅡ,Prepupa,Pupae and Whole generation was 8. 26,10. 56,7. 92,9. 17,9. 53,8. 69℃. The effective accumulative temperature of Whole generation was 153. 81d·℃. The Generation survival rate at 25℃ was high,being 63. 16%,while at 30℃ was lower,only 46. 34%.