Some biological aspects of the mite Typhlodromus malus as a predator of spider mite Tetranychus urticae | ||
| Alexandria Journal of Agricultural Sciences | ||
| Articles in Press, Accepted Manuscript, Available Online from 14 October 2025 | ||
| Document Type: Original Article | ||
| DOI: 10.21608/alexja.2025.423064.1168 | ||
| Author | ||
| Hend Basha* | ||
| plant protection, faculty of Agriculture, Zagazig Uptyniversity, Zagazig, Egypt | ||
| Abstract | ||
| Life cycle, reproduction, and prey consumption rate of the phytoseiid species Typhlodromus malus Basha & Yousef that are previously undetermined were studied when the mite fed on immature stages of the two spotted spider mite, Tetranychus urticae Koch, under laboratory conditions of 27±4°С to estimate its role in the biological control of this acarine pest. The total period of the immature stages averaged 5.78 days for females and 4.73 days for males, during which they consumed 21.71 and 12.71 prey individuals, respectively. The adult female of T. malus proved to be the most effective as it devoured a greater number of prey than the male. The average generation period was 9.57 days. Adult female continued depositing eggs during a period of 12.14 days, where it fed on a total average of 159.28 prey individuals and laid a total average and daily mean of 19.86 and 1.56 eggs, respectively. Also, the prey stage preference of T. malus females at constant densities of different stages of T. urticae is discussed. | ||
| Keywords | ||
| Biological control; Phytoseiidae; Predation; Spider mite | ||
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