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Phytoparasitica

, Volume 23, Issue 4, pp 355–356 | Cite as

Suppression ofbactra venosana, a potential natural enemy ofcyperus rotundus, bytrichogrammatoidea bactrae in Bangalore, India

  • P. N. Ganga Visalakshy
  • K. P. Jayanth
Note

Abstract

Bactra venosana Zeller (Lepidoptera: Tortricidae) is the predominant natural enemy ofCyperus rotundas L. in Bangalore, India. Although the insect was found to have potential, it was incapable of suppressing the weed due to low incidence. Laboratory studies involving field-collected insect stages revealed that heavy parasitism of eggs byTrichogrammatoidea bactrae Nagaraja (Hymenoptera: Trichogrammatidae) was the most important mortality factor suppressing its potentiality.

Key Words

Cyperus rotundus Bactra venosana potential natural enemy Trichogrammatoidea bactrae suppression 

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Copyright information

© Springer Science + Business Media B.V. 1995

Authors and Affiliations

  • P. N. Ganga Visalakshy
  • K. P. Jayanth
    • 1
  1. 1.Div. of Entomology and NematologyIndian Institute of Horticultural Research, Hessaraghatta Lake PostBangaloreIndia

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