LIFE TABLE PARAMETERS OF PHYTOSEIUS PLUMIFER (CANESTRINI & FANZAGO) REARED AT DIFFERENT TEMPERATURES (ACARI: PHYTOSEIIDAE)

NAWAR, MOHAMED S.; ZAHER, MOHAMED A.; EL-ENANY, MOHAMED A. M.; IBRAHIM, ABLA A.

doi:10.21608/ejar.2001.320890

LIFE TABLE PARAMETERS OF PHYTOSEIUS PLUMIFER (CANESTRINI & FANZAGO) REARED AT DIFFERENT TEMPERATURES (ACARI: PHYTOSEIIDAE)

Document Type : Original Article

Authors

¹ Agricultural Zoology Department, Faculty of Agriculture, Cairo University, Giza, Egypt

² Plant Protection Research Institute, Agricultural Research Centre, Dokki, Giza, Egypt

10.21608/ejar.2001.320890

Abstract

The life-history parameters of Phytoseius plumiter (Canestrini & Fanzago) were studied in the laboratory using immature stages of the two-spotted spider mite Tetranychus urticae Koch as a food source at seven temperature degrees (15-±1⁹C - 35±1⁹C). Life cycle (egg — adult emergence) lasted for 33.3, 16.6, 9.6, 8.7, 7.9, 7.4, and 7.1 days when female was maintained at 15, 20, 25, 28, 30, 32, and 35'C, respectively, and 70% R.N. Mean daily oviposition increased as temperature increased till reaching 32'C (2.0 eggs). The intrinsic rate of natural increase (rm) reached its maximum value (0.241 individuals / female / day) at 32⁹C. This predator was able to survive and reproduce with varying degrees of fecundity and predacious ability on the two-spotted spider mite T. urticae Koch (adults), the red spider mite T. cucurbitacearum (Sayed) (immatures and adults), the citrus brown mite Eutetranychus orientalis (Klein) (immatures), the eriophyid ploughman's spikenard gall mite Eriophyes dioscoridis Soliman and Abou-Awad (active stages), the whitefly Bemisia :abaci (Gennadius) (eggs), the scale insect Padatoria zizyphus (Lucas) (eggs), and the date palm Phoenix dactylifera L. (pollen grains).