Journalartikel

Jahr der Veröffentlichung: 1991

Seiten: 398-404

Zeitschrift: Zeitschrift für Pflanzenkrankheiten und Pflanzenschutz = Journal of plant diseases and protection

Bandnummer: 98

Heftnummer: 4

ISSN: 0340-8159

Verlag: Ulmer

Abstract: 

Larvae of coccinellids, fed exclusively with lupin aphids from bitter (alkaloid-rich) lupin cultivars died after an average of 3 days, except those fed with aphids from L. luteus. The variants fed with aphids from sweet lupins (alkaloid-poor), such as L. albus, showed some retardation of their development but in one case even a faster development (L. luteus) compared to the control variant. Larvae of syrphids and chrysopids were less sensitive to lupin alkaloids than those of coccinellids not only concerning their development but also regarding mortality. Some larvae developed to the adult stage. It is suggested that lupanine or 13-OH-lupanine, the main alkaloids in L. albus, L. angustifolius and L. mutabilis, were responsible for the retardation of development as well as for the mortality of the predators. On the other hand, sparteine, the main alkaloid of L. luteus, seems to have no negative effect on the larval development of the predators. To study the influence of lupin aphids, Macrosiphum albifrons, as prey of natural enemies, some investigations using Coccinella septempunctata L., Episyrphus balteatus (Deg.) and Chrysoperla carnea (Steph.) were conducted.

The duration of the larval development and the mortality were registered. Control insects were fed with pea aphid, Acyrthosiphon pisum, reared on broad bean plants (Vicia faba). In seven variants (seven cultivars of four lupin species) M. albifrons from L. albus, L. angustifolius, L. luteus and L. mutabilis as host plants with different alkaloid content and composition ("sweet" and "bitter" varieties) were offered to the predators.

Harvard-Zitierstil: EMRICH, B. (1991) ACQUIRED TOXICITY OF THE LUPIN APHID, MACROSIPHUM-ALBIFRONS, AND ITS INFLUENCE ON THE APHIDOPHAGOUS PREDATORS COCCINELLA-SEPTEMPUNCTATA, EPISYRPHUS-BALTEATUS AND CHRYSOPERLA-CARNEA, Zeitschrift für Pflanzenkrankheiten und Pflanzenschutz = Journal of plant diseases and protection, 98(4), pp. 398-404

APA-Zitierstil: EMRICH, B. (1991). ACQUIRED TOXICITY OF THE LUPIN APHID, MACROSIPHUM-ALBIFRONS, AND ITS INFLUENCE ON THE APHIDOPHAGOUS PREDATORS COCCINELLA-SEPTEMPUNCTATA, EPISYRPHUS-BALTEATUS AND CHRYSOPERLA-CARNEA. Zeitschrift für Pflanzenkrankheiten und Pflanzenschutz = Journal of plant diseases and protection. 98(4), 398-404.