Effects of loline-producing endophyte-infected meadow fescue ecotypes on New Zealand grass grub (Costelytra zealandica)

Autor:	Brian Patchett, LR Fletcher, Bruce Chapman, Ravi Gooneratne
Rok vydání:	2011
Předmět:	Lost Weight geography Larva geography.geographical_feature_category biology Costelytra zealandica Ecotype Soil Science Plant Science biology.organism_classification Endophyte Pasture Agronomy Festuca pratensis Animal Science and Zoology PEST analysis Agronomy and Crop Science
Zdroj:	New Zealand Journal of Agricultural Research. 54:303-313
ISSN:	1175-8775 0028-8233
DOI:	10.1080/00288233.2011.608686
Popis:	Loline alkaloids produced by endophyte-infected meadow fescue were high (>1000 µg/g) in roots. The larvae of New Zealand grass grub are major subterranean pasture pests. In laboratory and field studies, grass grub larvae feeding on roots of endophyte-infected meadow fescue containing lolines at concentrations >450 µg/g either lost weight or gained less weight than the corresponding controls feeding on endophyte-free or low-loline meadow fescue. These results demonstrate that loline alkaloids in roots of meadow fescue have the potential to deter grass grub larvae from feeding and could contribute to control of this pest in a sustainable manner.
Databáze:	OpenAIRE
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