Influence of weaver ant, Oecophylla smaragdina Fabricius (Hymenoptera: Formicidae) on mealybug parasitism by encyrtids (Chalcidoidea: Encyrtidae)


Affiliations

  • Annamalai University, Department of Entomology, Faculty of Agriculture, Chidambaram, Tamilnadu, 608002, India
  • Annamalai University, Department of Entomology, Faculty of Agriculture, Chidambaram, Tamil Nadu, 608002, India

Abstract

The influence of Oecophylla smaragdina Fabricius on parasitism of Phenacoccus solenopsis Tinsley and Ferrisia virgata Cockerell by Aenasius arizonensis (Girault) ( = Aenasius bambawalei Hayat) and A. advena Compere were studied under laboratory conditions. The number of surviving A. arizonensis and A. advena was 3.40 and 5.20 at 20th minute, and 1.0 and 0.8 at 60th minute, respectively. Per cent parasitism was 13.60 and 10.00 in treatment with O. smaragdina for A. arizonensis and A. advena, respectively. Per cent mortality due to O. smaragdina attack was 93.33 and 94.67 for A. arizonensis and A. advena, respectively.


Keywords

Aenasius arizonensis, Aenasius advena, Oecophylla smaragdina, parasitism

Subject Collection

Annamalainagar

Subject Discipline

Encyrtids

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