Insects attack citrus trees in Al- Qalyubiyah Governorate, Eygypt

Kamel, Aida S.

doi:10.21608/eajbsa.2010.15196

Cited by 5 publications

(6 citation statements)

References 8 publications

(5 reference statements)

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“…They recorded 3 peaks of C. floridensis, mid-April, late-june and eraly November on mandarin. Kamel (2010) reported the occurence of this pest in Qalyubiya on citrus was C. floridensis with the percent of infestaion 0.7 and 1.29 % of the two year under investigation.…”

Section: Ceroplastes Floridensis Comstock (Citrus Wax Scale) ( Hemiptera : Coccdidae) Abundancementioning

confidence: 92%

“…Identification of natural enemies will be made by examining mounted adults in Hoyer's medium. Abundance of the populations of scale insects and their natural enemies infested citrus trees were carried out on citrus during 2009-2010and 2010-2011 The plant areas selected for these investigations received no chemical control measures for several years. Twenty trees of citrus almost similar in age, size, shape and growth condition were randomly chosen for sampling at a month intervals for each location.…”

Section: Methodsmentioning

confidence: 99%

“…He also studied the distribution of I. seychellarum on apple trees 61.9% of the monophlebid were concentrated on old branches, 31.7% on new branches, 4.2% on old leaves and 2.2% on new leaves (an average of the two seasons, 1994/1995 and 1995/1996). Later Kamel (2010) reported the occurence of this pest in Qalyubiya on citrus was I. Seychelarum with the percent of infestaion 2.09 and 2.16% of the two year under investigation. Hamid and Hassanian (1991) recorded R. cardinals associated with monophlebid, Icerya spp.…”

Section: Icerya Seychellarum (Westwood) (Seychellarum Mealybug) (Hemiptera: Monophlebidae)mentioning

confidence: 98%

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Scale insects (Coccoidae: Hemiptera) infested citrus trees and thier natural enemies, with a key of these pests in Egypt

Moustafa

2012

Egyptian Academic Journal of Biological Sciences. A, Entomology

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Scale insects (Coccoidae: Hemiptera) are the most important pests infested citrus trees in Egypt. The present work dealt with the scale insects infested citrus trees and thier natural enemies as well as a key of these pests in Egypt . The results indicated that seven species of scale insects were recorded infested citrus trees in Egypt. Also taxonomic key of the seven species of scale insects was included. During the present work the results indicated that the populations of red scale, Aonidiella aurantii (Maskell) has two peaks one in April and the second one in October. In this work two parasitoids recorded associated with red scale. Theses are Aphytis lingnanensis Compere and Habrolepis aspidioti Compere and Annecke.It is recorded here two peaks for each parasitoid in April and October for A. lingnanensis and in July and November for H. aspidioti in Beni-Suef. Also this work indicated that citrus wax scale, Ceroplastes floridensis Comstock has two peaks the first in May and the second in October. In the present work two parasitoids recorded associated with citrus wax scale. These are Metaphycus helvolus (Compere) and Microterus flavus (Howard). It is recorded here two peaks for each parasitoid in May and October for in Gharbiya .The present work observed , black scale Chrysomphalus aonidum (L.) has two peaks the first in May and the second in November. In the present work two parasitoids recorded associted with the black scale. These are Aphytis chrysomphali (Mercet) and Encarsia citrina (Craw). It is recorded here two peaks for each parasitoid in May and November in Qalyubyia. The present work recorded seychellarum mealybug, Icerya seychellarum (Westwood) infested citurs trees in Demmyat and has two annual peaks one in June and the other in November. Also here Rodalia cardinalis Mulsant associated with seychellarum mealybug, I. seychellarum. During the presnt work the results indicated that he purple scale, Lepidosaphes beckii (Newman) has two peaks on citrus trees in Ismaillia . Also one parasitoid, Aphytis lepidosaphes Compere and one predator Chilocorus bipustulatus L. were recorded. During the present work the results indicated that parlatoria black scale, Parlatoria ziziphi (Lucas) has two peaks on citrus trees in Cairo. Two parasitoids, A. lingnanensis and E. citrina were recorded. During the presnt work the results indicated that citrus mealybug, Planococcus citri (Risso) has two peaks on citrus trees in Behira . Two parasitoids, Anagyrus pseudococci (Girault) and Leptomastix dactylopii Howard .

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Section: Ceroplastes Floridensis Comstock (Citrus Wax Scale) ( Hemiptera : Coccdidae) Abundancementioning

confidence: 92%

Section: Methodsmentioning

confidence: 99%

Section: Icerya Seychellarum (Westwood) (Seychellarum Mealybug) (Hemiptera: Monophlebidae)mentioning

confidence: 98%

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Scale insects (Coccoidae: Hemiptera) infested citrus trees and thier natural enemies, with a key of these pests in Egypt

Moustafa

2012

Egyptian Academic Journal of Biological Sciences. A, Entomology

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“…The black parlatoria scale insect, Parlatoria ziziphi (Lucas),(Homoptera :Diaspididae) is considered as the most important pest which infesting many species of trees and 192 of host plants belong to 77 families. It was recorded in Egypt by many researchers (Kamel, 2010;Moustapha, 2012 andTawfeek, 2012) and reported in some countries by Franco et al, 2006;Haddad andSadoudi, 2017 andRomos-Portilla andCaballero, 2017. However, the important of this insect is mostly related to infestation that reduced the market values of fruits. Biological control of this insect had focused on its parasitoid, Aphytis sp.,(Hymenoptera: Aphelinidae) is widely regarded as the most important parasitoid of P. ziziphi in citrus orchards (Kamel et al, 2003 andAbd-Rabou et al, 2014).…”

Section: Introductionmentioning

confidence: 94%

Seasonal Occurrence of Parlatoria ziziphi (Lucas) and Its Parasitoid in Relation with some Climatic Factors and Chemical Components on Navel Orange Trees التواجد الموسمى لحشرة parlatoria ziziphi (Lucas) وطفیلها الحشرة فى علاقه مع بعض العوامل المناخیة والمکونات الکیمائیة على أشجار البرتقال أبو سرة

نبیل¹,

حجاب²,

حجاب³

2019

Journal of Plant Protection and Pathology

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The black parlatoria scale insect, Parlatoria ziziphi (Lucas) is one of the most important armored scale insect infesting citrus trees. This investigation was conducted at Inshas El-Raml district, Sharkia Governorate throughout the two seasons 2016-2017 and 2017-2018 to study some ecological aspects of this scale insect on navel orange trees. This study showed that the seasonal activity of this insect was more abundant in the first season than in the second one, due to the relation with its associated parasitoid. The P. ziziphi had three generations and two peaks of the total alive stages during winter and autumn seasons throughout the two years of investigation. Also, the increase or decline of populations was correlated with some climate factors as temperature, relative humidity and light intensity and also influenced by some chemical components in navel orange trees. These results can be beneficial when developing an integrated program for control this pest without the use of pesticides that may pollute the environment.

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“…These results are in agreement with those obtained by some authors such as Habib et al (1971) who recorded that A. aurantii had 3-4 generations. Kamel (2010) studied the population density of the citrus red scale, A. orientalis infesting navel orange leaves in 7 Governorates of Lower Egypt and found that the insect had 3-4 annual population peaks. Moustafa (2012) added that the populations of red scale insect had two peaks, the first peak occurred on April and the second one on October.…”

Section: California Red Scale Insect a Aurantiimentioning

confidence: 99%

EFFECT OF SOME CHEMICAL CONSTITUENTS OF CERTAIN CITRUS TREE HOSTS ON THE POPULATION DENSITY OF Aonidiella aurantii (Maskell) AND Chrysomphalus aonidum (L.) AND THEIR POPULATION FLUCTUATIONS

Abd-Elghaffar

Selem

Kelany

et al. 2017

Zagazig Journal of Agricultural Research

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This investigation was carried out to study the effect of some chemical constituents (total phenols, total carbohydrates, total proteins and pH values) of three citrus tree host leaves (sweet orange, navel orange and mandarin) on the population density of Aonidiella aurantii (Maskell) and Chrysomphalus aonidum (L.) in relation with prevailing temperature and relative humidity in different citrus orchards at Minia Alkamh district, Sharkia Governorate, Egypt during two successive years extended from December 2012 to November 2014. The results showed that sweet orange appeared to be the most susceptible citrus tree hosts to infestation by the scale insects followed by navel orange and mandarin at the least. The population density of A. aurantii had three peaks on the three citrus tree hosts in the two years. Also, C. aonidum recorded three peaks on the navel orange in the two years, while on sweet orange indicated four peaks occurred during the first year and three peaks of densities were obtained during the second one. On mandarin trees, three and four peaks were observed in the aforementioned years, respectively. The highest population was exhibited by A.aurantii in the first peak by 636 insects/300 leaves on sweet orange on February in the second year while, it was recorded by C. aonidum in the third peak by 59 insects/300 leaves on October in the same year. There was a positive relationship between both of total carbohydrates and total proteins and the population density of A. aurantii and C. aonidum on sweet orange, navel orange and mandarin, while no relation was found between each of total phenols and pH values and the infestation level by the two scale insects.

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Insects attack citrus trees in Al- Qalyubiyah Governorate, Eygypt

Cited by 5 publications

References 8 publications

Scale insects (Coccoidae: Hemiptera) infested citrus trees and thier natural enemies, with a key of these pests in Egypt

Scale insects (Coccoidae: Hemiptera) infested citrus trees and thier natural enemies, with a key of these pests in Egypt

EFFECT OF SOME CHEMICAL CONSTITUENTS OF CERTAIN CITRUS TREE HOSTS ON THE POPULATION DENSITY OF Aonidiella aurantii (Maskell) AND Chrysomphalus aonidum (L.) AND THEIR POPULATION FLUCTUATIONS

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