| Titles |
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English :
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Ecological studies on key pests in festing Guava trees and their associated predators in Qalubia Governorate
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Arabic :
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دراسات إيكولوجيه علي الآفات الرئيسة التي تصيب أشجار الجوافة ومفترساتها المصاحبة في محافظة القليوبية
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| Abstract |
The present work was carried out to study the major insect pest species and their common natural enemies during the seasons of 2003 and 2004 in Qalubia Governorate had been studied . The obtained data revealed that the occurrence of the mealy bugs (2 species, Icerya aegyptiaca Doug. and I. seychelarum West.) on guava trees covered only 6 months (January to June). The total numbers of mealy bugs per season were 4079 individuals. The occurrence of scale insects (4 species including Aonidiella aurantii Mask., Ceroplastes floridensis Comst., Planococcus citri Rosso and Saissetia oleae (Delivier)) covered also 6 months of the year. The scale insect P. citri was the most abundant insect species among the other recorded species. The cotton aphid, Aphis gossypii (Glover) occurred during the period extended from the 1st week of May to the 1st week of July. No insect species were found on guava trees during the period extended from July to December, 2004. The maximum monthly total numbers of most common predators were in May. The ladybird beetles had the highest percentage of occurrence among other recorded predators (5 different species were recorded). Generally, the two predators, ladybird beetles and Chrysoperla carnea, could be laboratory mass reared and released for controlling the major pests attacking guava trees, with other available safe control methods that are developed in Integrated Pest Management (I.P.M.) programs, for protecting the surrounding environment.
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| Publication year |
2005
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| Pages |
4847-4857
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| Organization Name |
Plant Protection Research Institute (PPRI)
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| City |
المنصورة
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| serial title |
مجلة العلوم الزراعية-جامعة المنصورة
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| ISSN |
1110-0346
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| Department |
Biological Control
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| Author(s) from ARC |
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| Agris Categories |
Pests of plants
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AGROVOC
TERMS |
Aphis gossypii.
Coccoidea.
Guavas.
Plant ecology.
Predators.
Trees.
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| Publication Type |
Journal
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