Document Type : Researches
Authors
1
Dept. Plant Prod. and Protection, Fac. Enviro. Agric. Sci., Arish Univ, Egypt.
2
Dept. Plant Prod. and Protection, Fac. Environ. Agric. Sci., Arish Univ., Egypt.
3
Dept. Plant Prod. (Acarology), Fac. Environ. Agric. Sci., Arish Univ., Egypt.
Abstract
The developmental stages of the acarid mite, Tyrophagus tropics Robertson (family Acaridae) included egg, larvae, protonymph, tritonymph and adult stage. Mites reared at different food types under 26±2°C., and 75±5% RH. The growth and development from egg to adult involved incubation, larval, protonymphal, deutonymphal and tritonymphal stages were 7.28 ± 0.24, 7.39 ± 0.31, 8.92±0.21 and 8.83 ± 0.27 days for female while it was 6.86 ± 0.18, 6.81± 0.18, 8.57 ± 0.25 and 8.29 ± 0.13 days for male when fed on yeast, luncheon, Hard cheese and peanuts, respectively. The preoviposition period was 2.06±0.13, 3.78 ± 0.26, 3.22 ± 0.59 and 3.06 ± 0.13 days, respectively. Generation time was averaged 9.33 ± 0.20, 11.17 ± 0.39, 12.14 ± 0.58 and 11.89 ±0.26 days respectively, at the previous pattern. Oviposition period averaged 7.00 ± 266, 9.83 ± 2.41, 7.25±1.82 and 7.33 ±1.78 days respectively. The post-oviposition period averaged 2.00±1.13, 2.42±1.51, 2.17±1.34 and 2.25 ± 1.66 days, when all the individual reread on yeast, luncheon, hard cheese and peanuts, respectively
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