| Titles |
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English :
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POPULATION DYNAMIC OF SOME PESTS INFESTING NILI CUCUMBER PLANTATIONS in RELATION TO CERTAIN ECOLOGICAL FACTORS.
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Arabic :
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ديناميكية التعداد لبعض الآفات التى تصيب زراعات الخيار النيلى و علاقتها ببعض العوامل البيئية
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| Abstract |
Field experiments were conducted at Qalyubia governorate during two successive seasons 2007 and 2008 to study the population dynamics of some pests infesting Nili cucumber plantations namely Empousca discipiens, Aphis gossypii (Glover), Bemisia tabaci (Genn) on two cucumber cultivars. Also the effect of certain weather factors (daily mean temperature, daily mean R.H.) and plant age were studied on the population dynamics of the various pests. The results revealed clearly no significant differences in the susceptibilities of the two cucumber cultivars (Hageen eshrak and Amira) to infestation with the above mentioned pests of cucumber plants during the two seasons. The weather factors (mean Temp. and plant age) had significant effect on the population dynamics of Empousca discipiens, Aphis gossypii and B. tabaci for the two cultivars. On the other hand the relative humidity had shown no significant effect on population dynamics of the three pests during the two seasons of 2007 and 2008 on two cultivars. The percentage of variance was 92.7 & 84.5% and 98.6 & 94.2% for the two cucumber cultivars, (Hageen eshrak and Amira), during the two seasons of 2007 and 2008, respectively. This means that the weather factors and plant age are responsible for about 92.7 in the variability of the populations of the observed pests on Hageen eshrak and 84.5% for Amira during 2007. The corresponding values during 2008 were 98.6 and 94.2% for the two cultivars, respectively.
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| Publication year |
2011
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| Organization Name |
Plant Protection Research Institute (PPRI)
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| serial title |
المجلة المصرية للبحوث الزراعية
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| Author(s) from ARC |
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| External authors (outside ARC) |
فارس امين محمد اللقوة
كلية الزراعة بمشتهر
متولى مصطفى خطاب
كلية الزراعة-مشتهر
محمد محمد عزب
كلية الزراعة-بمشتهر
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AGROVOC
TERMS |
Aphis gossypii.
Bemisia tabaci.
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| Proposed Agrovoc |
tabaci;
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| Publication Type |
Journal
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