Factors Affecting The Population Density of The Two-Spotted Spider Mite ,Tetranychus Urticae Koch on Cucumber Plants in Sohag Governorate. العوامل المؤثرة على کثافة تعداد اکاروس العنکبوت الاحمر ذو البقعتین على نباتات الخیار بمحافظة سوهاج
Desoky, A., Negm, M., Saleh, M. (2020). Factors Affecting The Population Density of The Two-Spotted Spider Mite ,Tetranychus Urticae Koch on Cucumber Plants in Sohag Governorate. العوامل المؤثرة على کثافة تعداد اکاروس العنکبوت الاحمر ذو البقعتین على نباتات الخیار بمحافظة سوهاج. EKB Journal Management System, 11(10), 511-513. doi: 10.21608/jppp.2020.124927
A. S. S. Desoky; M. W. A. Negm; Mai M. M. Saleh. "Factors Affecting The Population Density of The Two-Spotted Spider Mite ,Tetranychus Urticae Koch on Cucumber Plants in Sohag Governorate. العوامل المؤثرة على کثافة تعداد اکاروس العنکبوت الاحمر ذو البقعتین على نباتات الخیار بمحافظة سوهاج". EKB Journal Management System, 11, 10, 2020, 511-513. doi: 10.21608/jppp.2020.124927
Desoky, A., Negm, M., Saleh, M. (2020). 'Factors Affecting The Population Density of The Two-Spotted Spider Mite ,Tetranychus Urticae Koch on Cucumber Plants in Sohag Governorate. العوامل المؤثرة على کثافة تعداد اکاروس العنکبوت الاحمر ذو البقعتین على نباتات الخیار بمحافظة سوهاج', EKB Journal Management System, 11(10), pp. 511-513. doi: 10.21608/jppp.2020.124927
Desoky, A., Negm, M., Saleh, M. Factors Affecting The Population Density of The Two-Spotted Spider Mite ,Tetranychus Urticae Koch on Cucumber Plants in Sohag Governorate. العوامل المؤثرة على کثافة تعداد اکاروس العنکبوت الاحمر ذو البقعتین على نباتات الخیار بمحافظة سوهاج. EKB Journal Management System, 2020; 11(10): 511-513. doi: 10.21608/jppp.2020.124927

Factors Affecting The Population Density of The Two-Spotted Spider Mite ,Tetranychus Urticae Koch on Cucumber Plants in Sohag Governorate. العوامل المؤثرة على کثافة تعداد اکاروس العنکبوت الاحمر ذو البقعتین على نباتات الخیار بمحافظة سوهاج

Journal of Plant Protection and Pathology
Article 6, Volume 11, Issue 10, October 2020, Page 511-513  XML PDF (679.98 K)
Document Type: Original Article
DOI: 10.21608/jppp.2020.124927
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Authors
A. S. S. Desoky email 1; M. W. A. Negm2; Mai M. M. Saleh3
1Plant protection Department , Faculty of Agriculture, Sohag University, Egypt
2Plant Protection Department, Faculty of Agriculture, Assiut University, Egypt.
3Plant Protection Department (Agricultural Zoology), Faculty of Agriculture, Sohag University, Egypt.
Abstract
The population abundance of the two-spotted spider mite, Tetranychus urticae that infest cucumber plants in upper-Egypt was investigated  during  spring plantations of 2015 and 2016 season. Data showed that the population of the spider mite population varied in its  density during the entire season of both seasons with a peak  number occurrence the end of season (May 30 ), when plant age was  90 day-old when temperature  and relative humidity were in moderate levels. Also, this study revealed that the cucumber  plants  highly impacted by the pest in addition to the few number of predators were observed during these seasons. The abiotic factors, e.g. temperature, relative humidity, and the plant age, more likely to induce the infestation than the biotic factors (predators). Accordingly, further studies are needed to examine the factors affecting the population of this pest. This study may be useful for determining the timing of the control program for T. urticae that infest cucumber plants during spring plantations.
Keywords
Tetranychus urticae; cucumber plants; spring plantations; temperature; relative humidity
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