Effect of root extracts of resistant pasture plants on the feeding and survival of black beetle larvae,Heteronychus arator(Scarabaeidae)

Autor: W. J. Greenfield, O. R. W. Sutherland
Rok vydání: 1978
Předmět:
Zdroj: New Zealand Journal of Zoology. 5:173-175
ISSN: 1175-8821
0301-4223
DOI: 10.1080/03014223.1978.10423748
Popis: Crude root extracts of the black beetle-resistant legumes red clover, white clover, lupin, Lotus pedunculatus, and lucerne significantly reduced feeding by 3rd-instar black beetle larvae when incorporated in an artificial medium containing a strong feeding stimulant. The same extracts were toxic when administered orally. Lucerne and L. pedunculatus contain particularly active feeding deterrents and toxins. The root of the black beetle-resistant grass Phalaris aquatica (= P. tuberosa), like that of the susceptible perennial ryegrass, had no effect on larval feeding or survival. Lotus pedunculatus was very much more active against black beetle larvae than L. corniculatus or L. corniculatus × pedunculatus.
Databáze: OpenAIRE