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3238

Evaluation of Chemical Control in A Rotational Program Against Whitefly on Tomato Crop

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Last updated: 22 Jan 2023

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Abstract

A chemical control program against Bemisia Tabaciwas applied after treatment of tomato    seedlings variety Rover F1 hybrid in the nursery using thiamethoxam and imidacloprid. In addition, six treatments with different rational and conventional insecticides in a rotational program have been applied at Syngenta Kaha Station, Kalubia Governorate, Egypt. Two treatments were sprayed according to the proposed economic threshold (less than one adult per compound leaf) rotationally. Another two treatments were sprayed periodically every 6 days without taking into consideration the degree of infestation. The last two treatments were used as block application and sprayed every 6 days twice using the same chemical.The results showed that the best treatment was the block application, in the sequence of thiamethoxam, lambda-cyhalothrin, pymetrozine, pyriproxyfen and  imidacloprid, fenpropathrin, pyriproxyfen, pymetrozine. They gave the highest efficacy on the adults of whitefly and obtained high yield of tomato crop. Regarding the virus infestation, both treatments showed the least number of infested plants with minimal surfaces of viral symptoms. The present study suggests that block application was a good rotational program in reducing the number of chemicals and reducing the hazard of pesticides to the environment. 

DOI

10.21608/asejaiqjsae.2009.3238

Authors

First Name

Farida

Last Name

A.Ayad

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Affiliation

Central Agricultural. Pesticides Laboratory Agric. Res. Center, Giza Egypt.

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First Name

H.S.

Last Name

Taha

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Affiliation

Central Agricultural. Pesticides Laboratory Agric. Res. Center, Giza Egypt.

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First Name

A. F.E.

Last Name

Afsah

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Affiliation

Plant Protection Research Institute. Agric. Res. Center. Giza, Egypt.

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First Name

S.A.G.

Last Name

Metwally

MiddleName

-

Affiliation

Plant Protection Research Institute. Agric. Res. Center. Giza, Egypt.

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City

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Orcid

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First Name

Sherif

Last Name

Ayoub

MiddleName

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Affiliation

Syngenta Kaha Station, Kalubia Governorate, Egypt. Project # FC/20/28-97, financed from Bureau de Liaison AgricoJe., Franco-Egyptien.

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Volume

30

Article Issue

APRIL- JUNE

Related Issue

466

Issue Date

2009-06-01

Receive Date

2009-06-20

Publish Date

2009-06-01

Page Start

257

Page End

264

Print ISSN

1110-0176

Online ISSN

2536-9784

Article File

ASEJAIQJSAE_Volume 30_Issue APRIL- JUNE_Pages 257-264.pdf

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https://asejaiqjsae.journals.ekb.eg/article_3238.html

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https://asejaiqjsae.journals.ekb.eg/service?article_code=3238

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Original Article

Type Code

53

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Journal

Publication Title

Alexandria Science Exchange Journal

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https://asejaiqjsae.journals.ekb.eg/

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Article

Created At

22 Jan 2023