ISHS Acta Horticulturae 482: International Symposium on Cut Flowers in the Tropics
LIFE CYCLES AND SOME PREDATORY ASPECTS OF PHYTOSEIULUS PERSIMILIS ATHIAS HENRIOT AND TETRANYCHUS URTICAE KOCH ON 'VISA' ROSE |
| Authors: | L. Jimenez, A. Acosta |
| Keywords: | Mites, predatory capacity, phytoseiidae, tetranychidae |
| Abstract:
The life cycles of the predator Phytoseiulus persimilis Athias Henriot. (PARASITIFORMES: Phytoseiidae) and the prey Tetranychus urticae Koch. (ACARIFORMES: Tetranychidae) were studied. Predatory capacity of P. persimilis on different instars of T. urticae were evaluated under laboratory conditions (19° ± 2°C and 80% ± 5% of R.H.). Life cycle of P. persimilis was 7.14 days and for T. urticae was 19.74 days. P. persimilis showed preference for eggs and adults of the prey and a higher efficiency with higher densities of T. urticae. | |
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