贵阳地区黄刺蛾种群发生规律及防治策略
Population occurrence and control strategy of Monema flavescens in Guiyang
龙见坤1*,罗庆怀1,曾锡琴1,曾陨涛2
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作者单位：1 贵州师范大学地理与生物科学学院 贵阳 550001； 2 西南林学院园林学院 昆明 650224）
中文关键词：黄刺蛾，;年生活史; 食性; 防治策略;贵阳
英文关键词：Monema flavescens, life history, feeding habit, control strategy， Guiyang
中文摘要：黄刺蛾Monema flavescens Walker 是贵阳地区的园林树木的重要害虫。种群年生活史同时存在1年1代和1年2代现象，其中1年1代的个体数占大多数，大约占虫口总数的3/4。1世代或2世代的个体越冬后的成虫羽化都集中于5月中、下旬；茧内滞育虫态（含预蛹和蛹）长达8～10个月；寄生性天敌昆虫对越冬代有很强的自然控制力，冬季茧的平均寄生率达34%。成虫的黑化个体占2.75％。室内养虫笼中黄刺蛾产下的卵粒有3种形状。研究期间（2004～2007年）发现黄刺蛾在贵阳的寄主植物有所不同，认为不同年份嗜食寄主植物有明显不同。根据黄刺蛾在当地的发生规律及天敌的自然控制力，提出了相应的防治策略和建议。
英文摘要：Monema flavescens Walker is a serious pest of garden trees in Guiyang. There was both one generation and two generations in its life history each year, in which about 3/4 of the total individuals occurred one generation each year. The adults from both onegeneration and twogeneration emerged in the last 20 days of May. The diapause stage, including prepupa and pupa in conoon, lasted for 8～10 months. Parasitic natural enemy of M. flavescens showed higher controlling effect, as the average parasitic rate of overwintering pupae was 34%. The melanous rate of adults was 2.75%. Three shapes of egg were found in insect cage(40 cm×30 cm×50 cm). During the study period (2004～2007), the host plants of M. flavescens were different in different year. Based on the occurrence and natural control, some control strategy and suggestions were mentioned.