Contact: +91-9711224068
Journal of Entomology and Zoology Studies
  • Printed Journal
  • Indexed Journal
  • Refereed Journal
  • Peer Reviewed Journal

ISSN Print: 2349-6800 | ISSN Online: 2320-7078

Journal of Entomology and Zoology Studies

updates
NAAS Rating: 5.53 NEW
2015, Vol. 3, Issue 4
Repellent and oviposition deterrent effects of Clerodendrum infortunatum on the pulse beetle Callosobruchus chinensis L. (Coleoptera: Bruchidae)

Valsala KK, Gokuldas M

Experiments were conducted to study the repellent and oviposition deterrent effects of different concentrations (0.5, 2, 4 and 6%) of leaf extract of Clerodendrum infortunatum on the pulse beetle, Callosobruchus chinensis. All the tested concentrations showed significant difference in repellent and oviposition deterrence against C. chinensis, when compared to the control sample. Here a dose dependent effect was observed. Repellency increases with concentration and decreases with exposure time. Among the different concentrations tested, 6% extracts showed highest repellent effect. Dose dependent effects were observed in the case of oviposition deterrence and adult emergence of insects while treating with the extracts. Maximum oviposition deterrence was exhibited in insect present in 6% concentration of extract treated sample. Minimum number of insects (mean, 0.5) emerged from the samples treated with the higher concentration (6%). Percentage of reproduction control exhibited by the extract was 97.1. It is thus inferred that C. infortunatum extract at 6% concentration exhibited the highest per cent repellency and oviposition deterrency index against the pulse beetle, C.chinensis.
Pages : 250-253 | 741 Views | 19 Downloads
How to cite this article:
Valsala KK, Gokuldas M. Repellent and oviposition deterrent effects of Clerodendrum infortunatum on the pulse beetle Callosobruchus chinensis L. (Coleoptera: Bruchidae). J Entomol Zool Stud 2015;3(4):250-253.
Journal of Entomology and Zoology Studies
Please use another browser.