Bollettino di zoologia agraria e bachicoltura

Vol. 26 No. 1 (1994): Serie 2
Articoli

Laboratory trials of two neem seed extracts on the predatory mites Amblyseius barkeri (Hughes) and Typhlodromus richteri Karg.

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  • Nadia Z. Dimetry,
  • Sanaa A. A. Amer,
  • Faten M. Momen
Nadia Z. Dimetry National Research Centre, Cairo
Sanaa A. A. Amer National Research Centre, Cairo
Faten M. Momen National Research Centre, Cairo

Published 2024-10-28

Keywords

  • Amblyseius barkeri,
  • Typhlodromus richteri,
  • neem

How to Cite

Laboratory trials of two neem seed extracts on the predatory mites Amblyseius barkeri (Hughes) and Typhlodromus richteri Karg. (2024). Bollettino Di Zoologia Agraria E Bachicoltura, 26(1), 127-137. https://test-ojs-unimi-it.archicoop.it/index.php/bzab/article/view/26992

Abstract

The effect of commercial products of two neem seed extracts (Neem Azal-S and Margosan-O) on the predacious mites Amblyseius barkeri (Hughes) and Typhlodromus richteri Karg was studied. In spite of the fact that both Margosan-O and Neem Azal-S decreased eggs laying as well as the food consumption rate, both extracts at the two tested concentrations were considered to be safe for A. barkeri. Margosan-O can be considered harmless for T. richteri as no or only slight adverse effects were observed on the predator. Neem Azal-S seems to be harmful to T. richteri at 0.2% but slightly harmful at 0.05% concentration. The sex ratio of the progeny in both species was recorded.

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