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29178

Comparative Assessment of Certain Insecticidal Compounds on the Development and Adult Performance of Red Palm Weevil, Rhynchophorus ferrugineus Olivier (Coleoptera: Curculionidae)

Article

Last updated: 03 Jan 2025

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Abstract

The red palm weevil Rhynchophorus ferrugineus is a serious pest of date palm in different regions of the Middle East. The present study was carried out to evaluate comparatively the effects of pyriproxyfen (insect growth regulator), neemazal (a plant product) and spinetoram (a bacterial product) on growth, development and adult performance of this insect pest. The early 5th instar larvae were treated with five sublethal concentrations of each compound. The most important results can be summarized as follows. Both larval duration and weight were considerably reduced by Spinetoram. Pyriproxyfen significantly reduced the larval duration only at 4000 ppm (7.2±2.97, compared to 11.7±1.6 days control insects) but Neemazal could not exhibit a remarkable effect.  The strongest reducing effect on larval weight was recorded for Pyriproxyfen, since the growth inhibition% was determined as 49.10, 48.58 and 38.04, at 4000, 2000 and 1000 ppm, respectively.  Pupation was inhibited by all tested insecticidal compounds and the pupal duration was significantly shortened, except at the lower three concentrations of Neemazal. Some deformations had been recorded only in adults, irrespective of the tested compound. The adult longevity was significantly shortened at the higher concentrations of each compound.

DOI

10.21608/eajbsa.2019.29178

Keywords

Adult, Development, Growth, longevity, morphogenesis, neemazal, mortality, Pyriproxyfen, Spinetoram, pupa

Authors

First Name

Tanani

Last Name

.A.

MiddleName

M.A.

Affiliation

Department of Zoology and Entomology, Faculty of Science, Al-Azhar University, Madinat Nasr, Cairo, Egypt

Email

m.tanani2018@gmail.com

City

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Orcid

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Volume

12

Article Issue

2

Related Issue

4968

Issue Date

2019-03-01

Receive Date

2019-02-10

Publish Date

2019-03-01

Page Start

45

Page End

57

Print ISSN

1687-8809

Online ISSN

2090-0813

Article File

EAJBSA_Volume 12_Issue 2_Pages 45-57.pdf

PDF . 925.9kB

Link

https://eajbsa.journals.ekb.eg/article_29178.html

Detail API

https://eajbsa.journals.ekb.eg/service?article_code=29178

Order

5

Type

Original Article

Type Code

667

Publication Type

Journal

Publication Title

Egyptian Academic Journal of Biological Sciences. A, Entomology

Publication Link

https://eajbsa.journals.ekb.eg/

MainTitle

Comparative Assessment of Certain Insecticidal Compounds on the Development and Adult Performance of Red Palm Weevil, Rhynchophorus ferrugineus Olivier (Coleoptera: Curculionidae).

Details

Type

Article

Created At

22 Jan 2023