摘要
采用不同日龄悬铃木[Platanus acerifolia Willd．]叶片饲喂悬铃木方翅网蝽[Corythuchaciliata（Say）]2龄若虫（低龄若虫）、4龄若虫（高龄若虫），观察该虫发育情况和存活率。结果表明，用5日龄叶片饲喂的若虫均不能取食、发育，而用15日龄、25日龄叶片饲喂的若虫取食量大，2龄若虫发育历期为55～60h，4龄若虫发育历期为82--84h，用35日龄、45日龄叶片饲喂的若虫较15日龄、25日龄饲喂的若虫历期缩短，死亡率升高。
Feeding 2thand 4th instars with sycamore[Platanus acerifolia Willd.]leaves in different days,and the development and survival rate of them were observed.The results showed that instars did not eat and develope into the next stage if fed with 5dleaves.2thinstars ate more and devlopped into next stage between 55 to 60hours feeding with 15 dor 25dleaves,and 4thinstars developed into5 thinstars between 82 to 84hours.The nymph developmental duration became shorer and the mortality rate became higher feeding with 35 dor 45dleaves.
