Efficacy of Leptospermum petersonii oil, on Plutella xylostella, and its parasitoid, Trichogramma pretiosum

Purwatiningsih, Heather, N. and Hassan, E. (2012) Efficacy of Leptospermum petersonii oil, on Plutella xylostella, and its parasitoid, Trichogramma pretiosum. Journal of Economic Entomology, 105 4: 1379-1384. doi:10.1603/EC11382


Author Purwatiningsih
Heather, N.
Hassan, E.
Title Efficacy of Leptospermum petersonii oil, on Plutella xylostella, and its parasitoid, Trichogramma pretiosum
Formatted title
Efficacy of Leptospermum petersonii oil, on Plutella xylostella, and its parasitoid, Trichogramma pretiosum
Journal name Journal of Economic Entomology   Check publisher's open access policy
ISSN 0022-0493
1938-291X
Publication date 2012-08
Sub-type Article (original research)
DOI 10.1603/EC11382
Volume 105
Issue 4
Start page 1379
End page 1384
Total pages 6
Place of publication Lanham, MD, United States
Publisher Entomological Society of America
Collection year 2013
Language eng
Formatted abstract
The efficacy of lemon-scented tea tree oil (LSO), Leptospermum petersonii (FM. Bailey), was evaluated against the diamondback moth, Plutella xylostella (L.) under laboratory conditions. Feeding activity and development of larval stages were significantly reduced on broccoli leaves that had been dipped in LSO. Oviposition deterrence was also found when an adult stage was exposed to treated leaves. Fecundity dropped by >50% at concentrations >0.5%. The LC50 value for third instar larvae was estimated to be 2.93% 7 d after treatment. Experiments were also conducted under greenhouse conditions to assess the efficacy of LSO against the diamondback moth. Our results suggest that LSO has modest potential for development as a botanical insecticide. The oil was also tested at concentrations from 0.5 to 6% for oviposition deterrence of an egg parasitoid of the diamondback moth, Trichogramma pretiosum (Riley). LSO deterred parasitization in choice tests but not in no-choice tests. LSO did not cause mortality of T. pretiosum during 24 h in a contact toxicity test. We conclude that LSO had no significant effects on the parasitoid, and therefore LSO is compatible with this biocontrol agent for integrated management of the diamondback moth.
Keyword Repellant
Diamondback moth
Lemon-scented tea tree oil (LSO)
Deterrent
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Agriculture and Food Sciences
Official 2013 Collection
 
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