ManageChatDiscover
43592

LOWER THRESHOLD TEMPERATURE AND THERMAL UNIT OF AMERICAN BOLLWORM, Helicoverpa armigera (HÜBNER) REARED ON PEA AND LETTUCE AND ITS REARING ON A NEW MODIFIED ARTIFICIAL DIETS

Article

Last updated: 04 Jan 2025

OverviewSimilar Items

Subjects

-

Tags

-

Abstract

The present work was conducted to study the relationship between developmental stages of the cotton bollworm, Helicoverpa armigera (Hübner) (ABW) reared in the laboratory on pea and lettuce and the required thermal units (DD's ) at constant temperatures, 23, 27 and 30°C ± 1°C. Also, to evaluate the use of two new modified artificial diets (A and B) for mass rearing of ABW and compared with natural food (lettuce). Diets A and B contained dried active yeast, ascorbic acid, sorbic acid, methyl parahydroxy benzoate, liquid milk, vitamin mixture and formaldehyde 34 - 38%. In addition to the essential ingredient, in diet A is kidney beans and wheat grated while, diet B is chickpea and wheat grated. Results showed that there was variation in developmental periods of the ABW in different stages reared on pea and lettuce. Temperature increasing led to an increase in the developmental rate and reduce the development periods of the different stages. The generation period of the ABW reared on lettuce was shorter (32.23 days) than that reared on pea (34.70 days). The lower developmental temperatures were 11.60 and 11.39 °C for the generation and the thermal units required were 467.13 and 511.26 DD's, respectively. On the other hand, results showed that highest larval and pupal weight, adult emergence and number of eggs/female (560 eggs/female) and lowest larval and pupal mortality percentage of ABW were observed on diet B followed by diet A and lastly natural food (lettuce). In conclusion, the two new modified artificial diets (A and B) developed in this study has proved to be satisfactory  for mass rearing of ABW, Helicoverpa armigera (Hübner).  

DOI

10.21608/jpd.2015.43592

Keywords

lower threshold temperature & thermal unit, American bollworm, Helicoverpa armigera, pea & lettuce, new modified artificial diets

Authors

First Name

Adel

Last Name

Amr

MiddleName

-

Affiliation

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

Email

-

City

Giza

Orcid

-

First Name

Aly

Last Name

ELSAYED

MiddleName

-

Affiliation

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

Email

-

City

Giza

Orcid

-

Volume

20

Article Issue

3

Related Issue

6563

Issue Date

2015-08-01

Receive Date

2019-08-03

Publish Date

2015-08-01

Page Start

273

Page End

284

Print ISSN

1110-2543

Online ISSN

2682-3322

Article File

JPD_Volume 20_Issue 3_Pages 273-284.pdf

PDF . 382.3kB

Link

https://jpd.journals.ekb.eg/article_43592.html

Detail API

https://jpd.journals.ekb.eg/service?article_code=43592

Order

7

Type

Original Article

Type Code

867

Publication Type

Journal

Publication Title

Journal of Productivity and Development

Publication Link

https://jpd.journals.ekb.eg/

MainTitle

LOWER THRESHOLD TEMPERATURE AND THERMAL UNIT OF AMERICAN BOLLWORM, Helicoverpa armigera (HÜBNER) REARED ON PEA AND LETTUCE AND ITS REARING ON A NEW MODIFIED ARTIFICIAL DIETS

Details

Type

Article

Created At

22 Jan 2023