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Comparative Demography of the Spider Mite, Tetranychus ludeni, on Two Host Plants in West Africa

It is well recognized that the quality of host plants affects the development and survival of plant-feeding arthropods. The effects of two leafy vegetable crops, amaranth, Amaranthus cruentus L. (Caryophyllales: Amaranthaceae) and nightshade, Solanum macrocarpon L. (Solanales: Solanaceae) were exami...

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Autores principales: Adango, Etienne, Onzo, Alexis, Hanna, Rachid, Atachi, Pierre, James, Braima
Formato: Texto
Lenguaje:English
Publicado: University of Wisconsin Library 2006
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2990336/
http://dx.doi.org/10.1673/031.006.4901
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author Adango, Etienne
Onzo, Alexis
Hanna, Rachid
Atachi, Pierre
James, Braima
author_facet Adango, Etienne
Onzo, Alexis
Hanna, Rachid
Atachi, Pierre
James, Braima
author_sort Adango, Etienne
collection PubMed
description It is well recognized that the quality of host plants affects the development and survival of plant-feeding arthropods. The effects of two leafy vegetable crops, amaranth, Amaranthus cruentus L. (Caryophyllales: Amaranthaceae) and nightshade, Solanum macrocarpon L. (Solanales: Solanaceae) were examined on the development and demographic parameters of the spider mite, Tetranychus ludeni Zacher (Acari: Tetranychidae). This mite was recently identified as a pest of the two leafy vegetables which are widely used in West Africa. The experiments were conducted at the International Institute of Tropical Agriculture, Benin, West Africa, in a growth chamber at 27°C, 70% ±10% RH and 12:12 (L:D). Immature development of T. ludeni was shorter on A. cruentus than on S. macrocarpon, whereas female longevity was the same on the two vegetable crops. Total fecundity per female was higher on A. cruentus than on S. macrocarpon, largely due to longer survival of adult female T. ludeni on the former; however, no differences were observed in the daily fecundity of T. ludeni on the two plant species. The comparison of intrinsic rates of natural increase (r(m)), the net reproductive rates (R(o)) and the survival rates of adult stage of T. ludeni on the two vegetable crops suggests that T. ludeni performs better on S. macrocarpon than on A. cruentus. Reasons for the lower rate of population growth observed on amaranth should be studied in more details as this could be used in IPM strategies such as intercropping to reduce pest density and in developing biopesticides for use against T. ludeni in vegetable farms in Africa.
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spelling pubmed-29903362010-11-23 Comparative Demography of the Spider Mite, Tetranychus ludeni, on Two Host Plants in West Africa Adango, Etienne Onzo, Alexis Hanna, Rachid Atachi, Pierre James, Braima J Insect Sci Article It is well recognized that the quality of host plants affects the development and survival of plant-feeding arthropods. The effects of two leafy vegetable crops, amaranth, Amaranthus cruentus L. (Caryophyllales: Amaranthaceae) and nightshade, Solanum macrocarpon L. (Solanales: Solanaceae) were examined on the development and demographic parameters of the spider mite, Tetranychus ludeni Zacher (Acari: Tetranychidae). This mite was recently identified as a pest of the two leafy vegetables which are widely used in West Africa. The experiments were conducted at the International Institute of Tropical Agriculture, Benin, West Africa, in a growth chamber at 27°C, 70% ±10% RH and 12:12 (L:D). Immature development of T. ludeni was shorter on A. cruentus than on S. macrocarpon, whereas female longevity was the same on the two vegetable crops. Total fecundity per female was higher on A. cruentus than on S. macrocarpon, largely due to longer survival of adult female T. ludeni on the former; however, no differences were observed in the daily fecundity of T. ludeni on the two plant species. The comparison of intrinsic rates of natural increase (r(m)), the net reproductive rates (R(o)) and the survival rates of adult stage of T. ludeni on the two vegetable crops suggests that T. ludeni performs better on S. macrocarpon than on A. cruentus. Reasons for the lower rate of population growth observed on amaranth should be studied in more details as this could be used in IPM strategies such as intercropping to reduce pest density and in developing biopesticides for use against T. ludeni in vegetable farms in Africa. University of Wisconsin Library 2006-12-31 /pmc/articles/PMC2990336/ http://dx.doi.org/10.1673/031.006.4901 Text en http://creativecommons.org/licenses/by/2.5/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Article
Adango, Etienne
Onzo, Alexis
Hanna, Rachid
Atachi, Pierre
James, Braima
Comparative Demography of the Spider Mite, Tetranychus ludeni, on Two Host Plants in West Africa
title Comparative Demography of the Spider Mite, Tetranychus ludeni, on Two Host Plants in West Africa
title_full Comparative Demography of the Spider Mite, Tetranychus ludeni, on Two Host Plants in West Africa
title_fullStr Comparative Demography of the Spider Mite, Tetranychus ludeni, on Two Host Plants in West Africa
title_full_unstemmed Comparative Demography of the Spider Mite, Tetranychus ludeni, on Two Host Plants in West Africa
title_short Comparative Demography of the Spider Mite, Tetranychus ludeni, on Two Host Plants in West Africa
title_sort comparative demography of the spider mite, tetranychus ludeni, on two host plants in west africa
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2990336/
http://dx.doi.org/10.1673/031.006.4901
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