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197489

DESCRIPTION OF THE DIFFERENT STAGES IN THE LIFE CYCLE OF THE DATE PALM SCALE INSECT, Parlatoria blanchardi TARGIONI TOZZETTI (Homoptera, Diaspididae)

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Last updated: 05 Jan 2025

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Abstract

The different stages of P. blanchardi were described. The
egg is oblong, whitish yellow and averages 285 microns long and
110 microns wide. After hatching, the 1st instar, crawler that gets
out from beneath the scale is also oblong yellowish white in color
and measures 250 microns long and 125 microns wide. The female
passes through two nymphal instars, while the male passes through
four. For this reason, the main taxonomic characters of the different
nymphal instars in both sexes were studied in details. In the adult
stage, sex is clearly distinguished. The female becomes
semicircular, elongated, and apterous, while the male is elongated
and winged. P. blancgardi, like most insects of this group, protect
itself with an armoured scale composed of exuviae and other
secreted materials. After the last nymphal moult, the male usually
emerges from beneath the scale, while the female remains
motionless.

DOI

10.21608/fjard.2008.197489

Keywords

Scale insect, date palm, Description, homoptera, Diaspididae

Authors

First Name

R.Y.

Last Name

Abdel Aleem

MiddleName

-

Affiliation

Department of Economic Entomology & pesticides Fac. Of Agrec., Cairo Univ., Giza, Egypt.

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Orcid

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Volume

22

Article Issue

2

Related Issue

27939

Issue Date

2008-07-01

Receive Date

2021-10-02

Publish Date

2008-07-01

Page Start

115

Page End

119

Print ISSN

1110-7790

Online ISSN

2805-2528

Article File

FJARD_Volume 22_Issue 2_Pages 115-119.pdf

PDF . 385.7kB

Link

https://fjard.journals.ekb.eg/article_197489.html

Detail API

https://fjard.journals.ekb.eg/service?article_code=197489

Order

7

Type

Research articles.

Type Code

1,920

Publication Type

Journal

Publication Title

Fayoum Journal of Agricultural Research and Development

Publication Link

https://fjard.journals.ekb.eg/

MainTitle

DESCRIPTION OF THE DIFFERENT STAGES IN THE LIFE CYCLE OF THE DATE PALM SCALE INSECT, Parlatoria blanchardi TARGIONI TOZZETTI (Homoptera, Diaspididae)

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Article

Created At

23 Jan 2023