山东省烟粉虱和温室白粉虱对寄主植物的适生性

Study on Adaptability of Bemisia tabaci and Trialeurodes vaprorariorum to Host Plants in Shandong Province

为了确定烟粉虱和温室白粉虱在不同寄主植物上的适生性,于2007—2008年,通过田间调查确定了青岛城阳、烟台莱阳和济宁邹城的烟粉虱和温室白粉虱在寄主植物上的发生情况,并通过室内测定确定了2种粉虱在茄子、烟草、黄瓜和番茄等4种不同寄主植物上的存活率。结果表明:在烟台莱阳地区,烟粉虱的发生较为严重,温室白粉虱分布较少;在青岛城阳地区,温室白粉虱为较大的优势种群,烟粉虱少有分布;济宁邹城地区的烟粉虱和温室白粉虱分布较为均匀,但烟粉虱寄主更为广泛;温室白粉虱在番茄和烟草上的室内存活率显著低于其他2种寄主植物,而烟粉虱仅在番茄上的存活率偏低。由试验得出,烟粉虱和温室白粉虱在不同地区和不同的寄主植物上均表现出不同的适生性。

In order to determine the adaptability of Bemisia tabaci and Trialeurodes vaprorariorum to different host plants in Shandong Provience,distribution was studied through investigating the occurrence in field of the two insect pests in Chengyang of Qingdao,Laiyang of Yantai and Zoucheng of Jining,and the survival ratio of the two insect pests feeding on eggplants,tobacco,cucumber and tomato was studied in the laboratory from 2007 to 2008.The results showed that B.tabaci caused serious damage in Laiyang,while T.vaprorariorum was not commonplace;T.vaprorariorum was the dominant specie in Chengyang,while B.tabaci were seldom found;B.tabaci and T.vaprorariorum almost took the same percentage in Zoucheng,but the host plants of former distributed more widely.The indoor survival ratio of T.vaprorariorum feeding on tomato and tobacco was significantly lower than that of T.vaprorariorum feeding on the other two host plants,and only when feeding on tomato,the indoor survival ratio of B.tabaci was lower.The experiment indicated that there were different adaptability of B.tabaci and T.vaprorariorum in different areas and host plants.