Journalartikel

Jahr der Veröffentlichung: 1984

Seiten: 368-375

Zeitschrift: Zeitschrift für angewandte Entomologie

Bandnummer: 98

Heftnummer: 4

ISSN: 0044-2240

Verlag: Parey

Abstract: 
Mortality of Plutella xylostella increased after adding the synergist piperonyl butoxide at a ratio of 10:1 and 5:1 to differently extracted neem seed kernel extracts (MeOH-NR, AZT-VR-K and MTB-H2O-VR). When 4th instar larvae were allowed to feed for several days of only 24 h on treated leaf disks, mortality significantly increased. An immediate effect of the extracts due to the efficacy of the synergist was not detectable, neither by changing the concentration of the extracts nor of the synergist. Using 4th instar larvae of Leptinotarsa decemlineata, a synergist to extract ratio of 10:1 significantly improved the effect of the extract (MTB/H2O-VR) when the insects fed on treated plants until pupation. A slight acceleration of the efficacy also was recorded. No improvement resulted from feeding larvae on treated plants for 24 h.

Harvard-Zitierstil: LANGE, W. and FEUERHAKE, K. (1984) INCREASE OF THE EFFICACY OF ENRICHED NEEM SEED EXTRACTS BY THE SYNERGIST PIPERONYL BUTOXIDE UNDER LABORATORY CONDITIONS, ZEITSCHRIFT FUR ANGEWANDTE ENTOMOLOGIE-JOURNAL OF APPLIED ENTOMOLOGY, 98(4), pp. 368-375

APA-Zitierstil: LANGE, W., & FEUERHAKE, K. (1984). INCREASE OF THE EFFICACY OF ENRICHED NEEM SEED EXTRACTS BY THE SYNERGIST PIPERONYL BUTOXIDE UNDER LABORATORY CONDITIONS. ZEITSCHRIFT FUR ANGEWANDTE ENTOMOLOGIE-JOURNAL OF APPLIED ENTOMOLOGY. 98(4), 368-375.