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1篇 您的检索式:作者名="Mark S.Hoddle"
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1An assessment of interspecific competition between two introduced parasitoids of Diaphorina citri (Hemiptera: Liviidae)on caged citrus plants显示文摘Two parasitoids attacking nymphs of Asian citrus psyllid,Diaphorina citri Kuwayama (Hemiptera:Liviidae),Tamarixia radiata (Waterston)(Hymenoptera:Eulophi- dae)and Diaphoreneyrtus aligarhensis (Shafee,Alam &Agarwal)(Hymenoptera:Encyrtidae)are being released in California,USA in a classical biological control program. To evaluate the effect of multiple parasitoid species on D.citri mortality,we conducted mesocosm experiments under controlled conditions using a complete block design with 6 treatments (D.cirri nymphs exposed to:no parasitoids;D.aligarhensis or T.radiata alone;D.aligarhensis or T.radiata released first (by 48 h);and both species released simultaneously).Parasitism of D.citri nymphs by T.radiata exceeded 60%and was unchanged when D.aligarhensis were present.Parasitism by D.aligarhensis was greatest when T. radiata was absent (-28%)and was reduced in all treatments with T.radiata present (<3%).D.cirri mortality and parasitoid-related mortality olD.citri was consistent across parasitoid treatments.Laboratory results suggest that competition between D.aligarhensis and T.radiata is asymmetric and favors T.radiata.It may be difficult for D.aligarhensis to contribute significantly to D.cirri biological control where T.radiata is present.However, results reported here suggest that competition between T.radiata and D.aligarhensis is not likely to reduce parasitism by T.radiata or reduce parasitoid-induced mortality of D.citri.Meghan A.Vankosky Mark S.Hoddle 2019Insect Science2019,26,1:2
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