LEAF STRUCTURE EFFECTS ON THE LIFE CYCLE AND REPRODUCTION OF TWO TETRANYCHID SPECIES | ||||
| Journal of Plant Protection and Pathology | ||||
| Article 7, Volume 30, Issue 12, December 2005, Page 8153-8166 PDF (279.06 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jppp.2005.239482 | ||||
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| Authors | ||||
| M. H. A Abo-bakr1; Fatma S. Ali2 | ||||
| 1Agricultural Botany Department. Fac. of Agric. Cairo Univ., Giza, Egypt. | ||||
| 2Agricultural Zoology and Nematology Department., Fac. of Agric. Cairo Univ., Giza, Egypt. | ||||
| Abstract | ||||
| This study was conducted to '~vestigatc the effect of some physical and chemicai host plant leaf proporues such as thickness and hairne ss of cuticular layer and carbohydrates on the biology of the two tetranychid miles; Tetranychus urticoe Koch and Eutetranychus orienta/is (Klein). Phaseo/us vulgaris L.. Gossyp < /em>usrn barbadense L. and So/anum melon gena L. were considered 10 be the most suitable for T. unicee as it accelerated development (9.93, 11.00 and 11.37 days), prolonged adult female lonqevlry (18.50. 15.27 and 12.24 days) and increased its fecundity (100.34,70.40 and 63.34 eggs). respectively. T. urticee p < /em>reference of the lower leaf surface may be due to its very thin cuticular layer which couldn't be i-ieasured ,compared with that of the other plants (1.6~). Dense hair leaf surface was s .,table for mite morphology due to Its narrow body and long legs and cheliceral 5tylels. On the contrary. Citrus aurantium (Macfad) and P/umena obtusa L. were (he most suitable hosts for E. orienta/is as it accelerated development (11.02 and 11.48 days), prolonged female longevity (15.32 and 12.00 days) and increased its fecundity (25.40 and 22.34 eggs), respectively, Smooth leaf surface in C. auranlium and P, oblusa as well as thick cuticle covering the upper epidermis (3.1 \J) proved to be suitable for E. orientalls development and reproduction. | ||||
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