摘要
【目的】蒲螨Pyemotes sp.是新疆杏、扁桃、桃等果树毁灭性害虫小蠹虫的主要寄生性天敌。研究蒲螨的生物学特征,为室内人工繁育和田间释放蒲螨提供参考。【方法】在室内不同温度下观察蒲螨的发育历期、产后代数等生物学特征。【结果】在19～31℃条件下随着温度的升高,蒲螨的发育历期逐渐减少,产后代数也逐渐减少;在10～15℃条件下蒲螨发育缓慢,不产后代;在19～22℃条件下产后代数较多,单雌最高产226头后代;通过对不同温度下发育速率的回归分析得出回归方程为Y=167.14X+10.49(R2=0.99)(2009年)和Y=167.67X+10.00(R2=0.95)(2010年)。【结论】蒲螨的发育起点温度在10.00～10.49℃;有效积温在167.14～167.67日度;最适繁殖温区为19～22℃。
[Objective]Pyemotes sp.is a parasitic natural enemy of Bark Beetle.The biological characters of Pyemotes sp.were analyzed in order to provide reference for indoor artificial breeding and field release of Pyemotes sp.[Method] The development duration and the fecundity of Pyemotes sp.in different temperature were observed in 2009 and 2010.[Result]The development duration and fecundity of Pyemotes sp.were gradually reduced along with the increase of temperature under 19-31℃,as the same of several generations after postpartum.Under temperature from 10℃ to 15℃,Pyemotes sp.developed slowly,and no later generations will be produced.Under temperature from 19℃ to 22℃,the later generations of Pyemotes sp.will more be produced,the most fecundity was 226 head of one female.The regression equetion obtained from regression analysis developmental rate under different temperatures were as follows： Y=167.14 X＋10.49（R2 = 0.99）（2009）and Y=167.67 X＋10.00（R2=0.95）（2010）.[Conclusion]The developmental threshold temperature ranged from 10.00℃ to 10.49℃.The effective accumulative temperature ranged from 167.14 day degree to 167.67 day degree.The optimal temperature of breeding ranged from 19℃ to 22℃.
出处
《新疆农业科学》
CAS
CSCD
北大核心
2011年第2期316-319,共4页
Xinjiang Agricultural Sciences
基金
国家"十一五"科技支撑计划(2009BADA4B02)
新疆农业科学院植物保护研究所青年基金
关键词
蒲螨
寄生性天敌
生物学特征
Pyemotes sp.； parasitic natural enemy； biological character
