Development and age-specific mortality of diamondback moth on Brassica host plants: Pattern and causes of mortality under laboratory conditions

Soufbaf, Mahmoud, Fathipour, Yaghoub, Karimzadeh, Javad and Zalucki, Myron (2010) Development and age-specific mortality of diamondback moth on Brassica host plants: Pattern and causes of mortality under laboratory conditions. Annals of the Entomological Society of America, 103 4: 574-579. doi:10.1603/AN10010


Author Soufbaf, Mahmoud
Fathipour, Yaghoub
Karimzadeh, Javad
Zalucki, Myron
Title Development and age-specific mortality of diamondback moth on Brassica host plants: Pattern and causes of mortality under laboratory conditions
Formatted title
Development and age-specific mortality of diamondback moth on Brassica host plants: Pattern and causes of mortality under laboratory conditions
Journal name Annals of the Entomological Society of America   Check publisher's open access policy
ISSN 0013-8746
1938-2901
Publication date 2010-07
Year available 2010
Sub-type Article (original research)
DOI 10.1603/AN10010
Volume 103
Issue 4
Start page 574
End page 579
Total pages 6
Editor Lawrence E. Hurd
Place of publication Colombus, OH, U.S.A.
Publisher Entomological Society of America
Collection year 2011
Language eng
Subject C1
960413 Control of Plant Pests, Diseases and Exotic Species in Farmland, Arable Cropland and Permanent Cropland Environments
060203 Ecological Physiology
Formatted abstract
The development and mortality of diamondback moth, Plutella xylostella (L.), were studied in laboratory at 25 ± 1°C, 65 ± 5% RH, and a photoperiod of 16:8 (L:D) h on 10 canola cultivars: ‘SLM046,’ ‘Opera,’ ‘Okapi,’ ‘RGS003,’ ‘Modena,’ ‘Sarigol,’ ‘Zarfam,’ ‘Licord,’ ‘Hayula420,’ and ‘Talaye.’ Larvae successfully survived on all host plants. The developmental time of immature stages ranged from 15.03 ± 0.15 d on Hayula420 to 16.65 ± 0.29 d on Opera, with a larval period ranging from 7.67 to 8.91 d on these cultivars. Adult female longevity was longest on Hayula420 without any supplemental food. Life table entropy values (H < 0.5) indicated Deevey's type I survivorship curve; however, the value of 0.541 on Hayula420 (H > 0.5) corresponded to type III. Major mortality parameters such as fraction of original cohort dying between successive days of age, death frequency (dx) of immature P. xylostella, average daily mortality (μx), and central death rate (mx) were evaluated on canola cultivars and indicated that the highest mx occurred on RGS003, with relatively low potential of population growth, on fifth day of life when the pest is in early larval stages (Ll and L2). The early instars are the most susceptible stages and suffer the highest cause-specific mortality under laboratory conditions.
© 2010 Entomological Society of America
Keyword Age-specific mortality
Plutella xylostella
Death frequency
Xylostella L. lepidoptera
Life table
Yponomeutidae
Management
Ecology
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
School of Biological Sciences Publications
Ecology Centre Publications
 
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Created: Fri, 16 Jul 2010, 14:45:04 EST by Joni Taylor on behalf of School of Biological Sciences