Mass rearing technique for predaceous Orius laevigatus (Hemiptera: Anthocoridae) in the laboratory and its efficacy on three prey species
2025
Hammad, M.S. | Mowafi, M.H. | Abdallah, A.A. | Hassan, M.I.
Orius species (Hemiptera: Anthocoridae) are generalist predators of small insects, including thrips, mites, aphids, and scales. Orius laevigatus (Fieber) (Hemiptera: Anthocoridae) can be reared successfully using a plastic Petri dish as a rearing cage with wheat grains to prevent cannibalism and excessive moisture. Frozen eggs of Ephestia kuehniella Zeller (Lepidoptera: Pyralidae) were supplied as food, and a soybean seedling was provided as an oviposition substrate. We checked the prey preference of the predatory leaf disks containing different numbers of nymphs and adults of Thrips tabaci (Lindeman) (Thysanoptera: Thripidae), Myzus persicae (Sulzer) (Hemiptera: Aphididae), and Tetranychus urticae. Koch (Acari: Tetranychidae). In addition, the number of prey consumed was recorded, and the development stages of O. laevigatus were observed. This study aimed to examine the composition of predatory Orius laevigatus on three preys: T. tabaci, M. persicae, and T. urticae. The experiment was carried out under laboratory conditions (25±1°C and 65±5% RH.).
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