Biocontrol potential of Heterorhabditis indica against the maggot of Bactrocera cucurbitae (Diptera:Tephritidae)

Authors

  • Mary Nirmala Borgia PG and Research Dept. of Zoology, Fatima Mata National College (Autonomous), Kollam - 691 001, Kerala, India
  • A. Josephrajkumar Division of Crop Protection, ICAR-CPCRI, Kayamkulam, Alleppy, Kerala, India
  • Mary Teresa P. Miranda Division of Crop Protection, ICAR-CPCRI, Kayamkulam, Alleppy, Kerala, India

Keywords:

Bactrocera cucurbitae, Heterorhabditis indica, cucurbits, infective juveniles, biological control.

Abstract

Studies conducted to determine the pathogenic efficiency and bio-control potential of the entomopathogenic nematode Heterorhabditis indica against melon fruit fly Bactrocera cucurbitae showed dose-dependent and time dependant effect. The 24 h LD50 value of H. indica was 50.28 and that at 48h was considerably reduced (38.17). Highest mortality was observed @ 160 IJs/maggot in the bioassay. In field trials also, H indica successfully reduced pest population. A higher mortality of 65% was realized when the parasite was used @ 400,000 in 100 ml of aqua suspension. The present study confirms the susceptibility of B. cucurbitae against H. indica under laboratory and field conditions. 

Downloads

Published

2017-03-31

How to Cite

Borgia, M. N., Josephrajkumar, A., & Miranda, M. T. P. (2017). Biocontrol potential of Heterorhabditis indica against the maggot of Bactrocera cucurbitae (Diptera:Tephritidae). ENTOMON, 42(1), 69–74. Retrieved from http://entomon.in/index.php/Entomon/article/view/253

Issue

Vol. 42 No. 1 (2017)

Section

Short Communications