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197806

MONITORING OF YIELD LOSS IN MAIZE CAUSED BY CHILO AGAMEMNON BLES. (LEPIDOPTERA : PYRALIDAE)

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Last updated: 28 Dec 2024

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Abstract

A field trial was carried out in Fayoum Governorate, Egypt, in
2003 and 2004 seasons for monitoring yield loss in maize caused by
Chilo agamemnon infestation. Based on data obtained from
simulated and natural infestation using a given equation, yield loss
could be estimated by field survey of the number of stems broken at
different levels of the plants which compensate for the traditional
method of dissecting the plants in search for the number of holes or
larvae, in addition to the need for yield weight. The actual loss in
yield was 1.59, 0.5 and 1.02 kg/200 plants in March, May and June
plantations, respectively, compared to 1.44, 0.6 and 1.25 kg/200
plants estimated by the given equation. The differences between the
actual and estimated loss in yield is not considerable. This finding
ascertains that the use of such equation facilitates the assessment of
C. agamemnon damage to maize plants through field observation of
symptoms of infestation (broken stems only). Also, results showed
that larvae bore into the ear shank and not the ear itself and
confirmed that, the month of May is the suitable planting date for
maize in Egypt.

DOI

10.21608/fjard.2005.197806

Keywords

Chilo agamemnon, Equation, Maize, yield loss

Authors

First Name

Ibrahim M.

Last Name

Sabra

MiddleName

-

Affiliation

Plant Protection Research Institute, Agricultural Research Center, Dokki, Egypt.

Email

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First Name

Mohamed S.I.

Last Name

Shalaby

MiddleName

-

Affiliation

Plant Protection Research Institute, Agricultural Research Center, Dokki, Egypt.

Email

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City

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Orcid

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First Name

Mahmoud M.I.

Last Name

Khewa

MiddleName

-

Affiliation

Plant Protection Research Institute, Agricultural Research Center, Dokki, Egypt.

Email

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City

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Orcid

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Volume

19

Article Issue

1

Related Issue

27959

Issue Date

2005-01-01

Receive Date

2021-10-03

Publish Date

2005-01-01

Page Start

150

Page End

155

Print ISSN

1110-7790

Online ISSN

2805-2528

Article File

FJARD_Volume 19_Issue 1_Pages 150-155.pdf

PDF . 429.5kB

Link

https://fjard.journals.ekb.eg/article_197806.html

Detail API

https://fjard.journals.ekb.eg/service?article_code=197806

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14

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

MONITORING OF YIELD LOSS IN MAIZE CAUSED BY CHILO AGAMEMNON BLES. (LEPIDOPTERA : PYRALIDAE)

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Article

Created At

23 Jan 2023