【摘要】 报道了日本高知日本柳杉Cryptomeriajaponica、日本扁柏Chamaecyparisobtusa人工林中日本树蜂Urocerusjaponicus的危害现状 ,平均被害率为 2 7% ,最高为 38% ,最低为 12 %。树木被害星形纹平均达 3 2个 /株。日本树蜂的羽化初期为 6月下旬至 7月初 ,盛期为 7月中旬至 8月中旬 ,终期为 9月中、下旬。同时 ,初步探讨了防治对策更多还原

【Abstract】 Urocerus japonicus injurious to Cryptomeria japonica and Chamaecyparis obtuse plantations in Cochi,Japan was reported.The average infested rate was 27%.The average attacked star-shape veins per tree were 3 2.The adult begins to emerge from late June to early July with a peak period from mid July to mid August and ended in mid and late September.The control methods were also discussed.更多还原