Agricultural and Forest Entomology (2007) 9, 221-226

Francisco Soto, Luko Hilje, Gerardo A. Mora, María Elena Aguilar and Manuel Carballo (2007)
Systemic activity of plant extracts in Cedrela odorata (Meliaceae) seedlings and their biological activity on Hypsipyla grandella (Lepidoptera: Pyralidae) larvae
Agricultural and Forest Entomology 9 (3), 221-226
Abstract: 1 Deterrent and toxic substances known to affect Hypsipyla grandella larvae were bioassayed to determine their possible systemic activity under laboratory conditions in Turrialba, Costa Rica.
2 Leaflets from Spanish cedar Cedrela odorata seedlings grown in vitro on culture media treated with different plant extracts were excised from the seedlings and exposed to H. grandella larvae.
3 Both Azatin EC (derived from neem, Azadirachta indica) and plant extracts (from Quassia amara wood, Ruta chalepensis leaves and Sechium pittieri fruits) were able to translocate within Spanish cedar seedlings and express their biological activity against H. grandella larvae.
4 Rates of leaflet consumption were nil for seedlings treated with the commercial standard (carbofuran) and Azatin EC, both causing larval death.
5 Intermediate levels of consumption were reached with the three plant extracts, all of them causing deterrence, because they precluded feeding activity by larvae when exposed to treated leaflets.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Luko Hilje

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Hypsipyla grandella	Cedar	Costa Rica