Studies on Liriomyza sativae Blanchard Selectivity to Plateau Summer Vegetables

Five point methods were used to investigate the number of feeding tunnels,rate of harmed leaves and insect index of Liriomyza sativae Blanchard damaging 29 varieties of plateau summer vegetables.The results indicated that there were significant differences in Liriomyza sativae Blanchard selectivity to their varieties.The most favourite vegetables of Liriomyza sativae Blanchard were Trsum satrcum and Pisumsativum,the next favorite were Beassica pekinensis and Brassica oleracea.Except few varieties,Liriomyza sativae Blanchard selectivity to Trsum satrcum was stronger than to Pisum sativum, and its selectivity to Beassicapekinensis was stronger than to Brassicaoleracea.According to the number of feeding tunnels,rate of harmed leaves and insect index of Liriomyza sativae Blanchard,the varieties of plateau summer vegetables were divided into the most favorite,the next favorite and the least favorite 3 types.