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Leaf structure effects on the life cycle and reproduction of two tetranychid species [electronic resource].

By:

Abo-Bakr, M. H. A

Contributor(s):

Ali, Fatma S

Language: English Summary language: Arabic Description: P. 8153-8166Other title:

تأثير بعض الصفات التركيبية لورقة النبات على دورة حياة وتكاثر نوعين من الحلم التترانيكيدى.‪ [Added title page title]

Uniform titles:

Mansoura University journal of agricultural sciences, 2005 v. 30 (12) part B [electronic resource].

Subject(s):

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Full Text Article.

In: Mansoura University Journal of Agricultural Sciences 2005.v.30(12)part-BSummary: This study was conducted to investigate the effect of some physical and chemical host plant leaf properties such as thickness and hairness of cuticular layer and carbohydrates on the biology of the two tetranychid mites; Tetranychus urticae Koch and Eutetranychus orientalis (Klein). Phaseolus vulgaris L., Gossypium barbadense L. and Solanum melongena L. were considered to be the most suitable for T. urticae as it accelerated development (9.93, 11.00 and 11.37 days), prolonged adult female longevity (18.50, 15.27 and 12.24 days) and increased its fecundity (100.34, 70.40 and 63.34 eggs), respectively. T. urticae preference of the lower leaf surface may be due to its very thin cuticular layer which couldn't be measured compared with that of the other plants (1.6µ). Dense hair leaf surface was suitable for mite morphology due to its narrow body and long legs and cheliceral stylets.

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This study was conducted to investigate the effect of some physical and chemical host plant leaf properties such as thickness and hairness of cuticular layer and carbohydrates on the biology of the two tetranychid mites; Tetranychus urticae Koch and Eutetranychus orientalis (Klein). Phaseolus vulgaris L., Gossypium barbadense L. and Solanum melongena L. were considered to be the most suitable for T. urticae as it accelerated development (9.93, 11.00 and 11.37 days), prolonged adult female longevity (18.50, 15.27 and 12.24 days) and increased its fecundity (100.34, 70.40 and 63.34 eggs), respectively. T. urticae preference of the lower leaf surface may be due to its very thin cuticular layer which couldn't be measured compared with that of the other plants (1.6µ). Dense hair leaf surface was suitable for mite morphology due to its narrow body and long legs and cheliceral stylets.

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