CAJ | 학술논문

烟蚜茧蜂是蚜虫的主要灭敌,但其控制作用又受到重寄生蜂的影响.我们在烟株封顶后将其分为上、中、下3个部位,对不同部位重寄生率进行分析,为弄清重寄生蜂的活动及寄生规律做了初步研究.结果表明:在前期,烟株下部的重寄生率明显高于中部和上部;在中后期,大田重寄生率高达40%,且此时烟株上部和中部的重寄生率均显著高于下部.研究发现在云南大理烟区有2种重寄生蜂,蚜虫宽缘金小蜂[Pachyneuron aphidis(Bouche)]和长背瘿蜂(Phaenoglyphis sp.),以蚜虫宽缘金小蜂为优势种,长背瘿蜂在云南的发现尚属首次;大出重寄生率在8月初达到高峰.
연아충봉시아충적주요멸활,단기공제작용우수도중기생봉적영향.아문재연주봉정후장기분위상、중、하3개부위,대불동부위중기생솔진행분석,위롱청중기생봉적활동급기생규률주료초보연구.결과표명:재전기,연주하부적중기생솔명현고우중부화상부;재중후기,대전중기생솔고체40%,차차시연주상부화중부적중기생솔균현저고우하부.연구발현재운남대리연구유2충중기생봉,아충관연금소봉[Pachyneuron aphidis(Bouche)]화장배영봉(Phaenoglyphis sp.),이아충관연금소봉위우세충,장배영봉재운남적발현상속수차;대출중기생솔재8월초체도고봉.
Aphidius gifuensis is the main parasite enemy of tobacco aphid.However,the manipulative effect of A.gifuensis to aphid is greatly influenced by hyperparasitoid.Tobacco plants were divided into upper position,middle position,and lower position after topping.The hyperparasite rate of A.gifuensis to tobacco aphid at different positions,parasitism activities,and regularity of hyperparasitoids were preliminary studied.Results showed that the hyperparasitic rates in lower tobacco plant position were higher than that in the middle and the upper position at the beginning of tobacco growth.In the middle and late period,the hyperparasitic rate in the tobacco field was up to 40 percent,and the hyperparasitic rate in the middle and upper positions were remarkbaly higher.There were two kinds of hyperparasitoids in Xiangyun tobacco district of Dali,which were Pachyneuron aphidis(Bouche)and Phaenoglyphis sp.P.aphidis was the dominant species,and Phaenoglyphis sp in Yunnan have not yet been reported.The hyperparasitic rate in tobacco field reached its peak in early August.