不同寄主对黄胸蓟马Thrips hawaiiensis生长发育及产卵的影响

Influence of different hosts on the development and oviposition of Thrips hawaiiensis

黄胸蓟马Thrips hawaiiensis是一种亚洲地区广泛分布的重要栖花害虫。研究了其在玫瑰、郁金香、康乃馨和百合等4种花卉寄主上的生长发育、存活及产卵差异,以期为探讨黄胸蓟马对不同寄主的为害差异及机制提供基础数据。结果表明,黄胸蓟马在玫瑰上发育最快,其完成一代需要10.07 d;在百合上发育最慢,完成一代需11.22 d。黄胸蓟马的世代存活率在郁金香上最高(0.76),在康乃馨上最低(0.64)。不同短时产卵处理表明,黄胸蓟马最喜好在郁金香上产卵,最不喜好在百合上产卵。因此,根据黄胸蓟马的生长发育、存活及产卵表现,4种寄主中,郁金香是黄胸蓟马的最适宜寄主,百合是其最不适宜寄主。

Thrips hawaiiensis is an important flower inhabiting thrip pest,widely distributed in the Asian regions.The development,survival and oviposition of T.hawaiiensis on four flower hosts(Rosa rugosa,Tulipa gesneriana,Dianthus caryophyllus and Lilium brownii var.viridulum)were studied in this paper,in order to discuss the damage difference and damage mechanism to different plant hosts.The results showed that the shortest developmental period of T.hawaiiensis was on Rosa rugosa flower,which needed1007d to complete one generation.The longest was on Lilium brownii var.viridulum flower,which needed1122d to complete one generation.The highest survival rate was on T.gesneriana flower,while the lowest was on D.caryophyllus flower,with the values of076and064,respectively.According to different treatments for oviposition in short time,we found that T.gesneriana flower was the most preferred host for oviposition by T.hawaiiensis,while Lilium brownii var.viridulum flower was the least preferred host.In summary,according to the performance of development,survival and oviposition of T.hawaiiensis on the four flower hosts,T.gesneriana was the most suitable host for T.hawaiiensis,while L.brownii var.viridulum was the least.