【摘要】 白龙江林区苗圃主要金龟子害虫种类21种,隶属于2科,12属。鳃金龟科占80.95%,丽金龟科占19.05%。地处白龙江上游的安子沟林场以小云斑鳃金龟、粗绿彩丽金龟、大栗鳃金龟、灰胸突鳃金龟为优势种;地处白龙江中游的沙滩林场以小云斑鳃金龟、粗绿彩丽金龟、大云斑鳃金龟、蓝边矛丽金龟、大栗鳃金龟、灰胸突鳃金龟为优势种。优势度指数均以7～8月最高。更多还原

【Abstract】 There were 21 main pest species of scarab,belonging to 2 families,12 genera in the nurseries of Bailongjiang forest area.Melolonthidae accounted for 80.95% and Rutelidae accounted for 19.05%.The dominant species were Polyphylla gracilicornis,Mimela holosericea,Melolontha frater and Hoplosternus incanus in Anzigou forest farm,which was located in the upper reaches of Bailongjiang;and the dominant species were Polyphylla gracicornis,Mimela holosericea,Polyphlla lativdlis,Callistethus plagiicollis,Melolontha hipocastanea mongolica and Hoplosternus incanus in Shatan forest farm,which was located in the middle reaches of Bailongjiang.The domi-nance indexes were both highest in July-August.更多还原