In 2022,the feeding selectivity of larvae of Biston suppressaria to four different hosts was studied by means of random se-lection and pairwise test.The results showed that in the random selection experiment,the feeding probabilities of the larvae on Euca-lyptus urophylla × Eucalyptus grandis,Vernicia fordii and Triadica sebifera were higher,separately with an average of 0.35,0.31 and 0.31,which were significantly higher than that on Camellia oleifera.There were also significant differences on the feeding ratios of the four hosts,highest by V.fordii(42.90％)and T.sebifera(37.72％),followed by E.urophylla × E.grandis(28.37％),and C.oleifera(8.13％)was the least eaten.In the pairwise test,there were no significant differences between the feeding frequencies of the larvae on E.urophylla × E.grandis,V.fordii and T.sebifera,but they were significantly higher than that of C.oleifera.The experi-mental results proved that the larvae of B.suppressaria had an obvious feeding preference for V.fordii,T.sebifera and E.urophylla × E.grandis,but did not prefer to feed on C.oleifera.However,the feeding proportion of V.fordii or T.sebifera in leaf plates was signifi-cantly higher than that of E.urophylla × E.grandis.The research results can provide reference for exploring the disaster of B.suppressaria.
维普
万方数据