| Titles |
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English :
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Limitation of equilibrium point between Hemiberlesia lataniae (Signoret) and its associated parasitoids under field conditions on guava trees.
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Arabic :
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تحديد نقطة التوازن بين حشرة اللاتانيا القشرية Hemiberlesia lataniae (Signoret) والطفيليات المصاحبة لها تحت ظروف الحقل على أشجار الجوافة
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| Abstract |
Studies were carried out on guava tress (Psidium guajava L.) at Kafer Saker district, Sharkia Governorate, Egypt during three successive years (1999, 2000 and 2001) to determine equilibrium point between Hemiberlesia lataniae (Signoret) and its associated parasitoids Aphytis sp. and Aspidiotiphagus sp. (Hymenoptera: Aphelinidae) under field conditions. The point at which the increase of parasitoids numbers through the peaks leads to decrease in number of the insect pest (equilibrium point) was calculated mathematically showing means of 0.806, 0.280 and 0.863 parasitoid / insect, respectively. The general average of this equilibrium point during the three years of study was 0.65 parasitoid / insect.
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| Publication year |
2003
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| Pages |
673-680
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| Organization Name |
Plant Protection Research Institute (PPRI)
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| City |
الزقازيق
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| serial title |
المجلة المصرية للعلوم التطبيقية
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| Author(s) from ARC |
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| External authors (outside ARC) |
على عبد الحميد شاهين
كلية الزراعة – جامعة الزقازيق
كامل عبد اللطيف عبد الله حماد
كلية الزراعة – جامعة الزقازيق
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| Agris Categories |
Protection of plants - General aspects
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AGROVOC
TERMS |
Aphelinidae.
Aphytis.
Encarsia.
Hymenoptera.
Parasitoids.
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| Proposed Agrovoc |
Hemiberlesia lataniae;
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| Publication Type |
Journal
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