Study on the Habit of Absorbing Replenishing Nutrition of Batocera horsfteldi and Its Relation with the Host Trees

Shoots of several tree species or shoots of a sole tree species were used to feed the adults of Batocera horsfieldi separately for trials of absorbing replenishing nutrition. The results of the trials show that the adults fed up with the shoots of Rosa multifora and Fraxinus chinesis absorbed more nutrition with longer life-span than the adults fed up with the shoots of Salix matsudana,Pterocarya hupehensis,Populus deltoides cv."Lux"(Ⅰ-69/55)and Ulmus pumila; and only those adults fed up with rose and ash were able to lay eggs. The amount of replenishing nutrition taken,life-span and amount of oviposition are in positive relationship with the sugar content of the plant shoots taken by the adults. The use of rose as bait tree in poplar plantation to attract and catch the adults could decrease the percentage of trees attacked by the beetle from 94.4% to 17.8%.