Distribution and Relative Abundance of Bean Leaf Beetles (<i>Ootheca</i> spp.) (Insecta: Coleoptera: Chrysomelidae) in Uganda
Bean leaf beetles (<i>Ootheca</i> spp.) (Insecta: Coleoptera: Chrysomelidae) are one of Africa’s most destructive pests of common bean and other leguminous crops. The beetles are widely distributed in Africa where they are estimated to cause annual crop yield losses of 116,400 tons of cr...
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MDPI AG
2021-11-01
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| Series: | Insects |
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| Online Access: | https://www.mdpi.com/2075-4450/12/11/1048 |
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| author | Charles Halerimana Samuel Kyamanywa Samuel Olaboro Pamela Paparu Stanley T. Nkalubo John Colvin Robert A. Cheke Thomas Wagner Susan E. Seal Darren J. Kriticos Michael H. Otim |
| author_facet | Charles Halerimana Samuel Kyamanywa Samuel Olaboro Pamela Paparu Stanley T. Nkalubo John Colvin Robert A. Cheke Thomas Wagner Susan E. Seal Darren J. Kriticos Michael H. Otim |
| author_sort | Charles Halerimana |
| collection | DOAJ |
| description | Bean leaf beetles (<i>Ootheca</i> spp.) (Insecta: Coleoptera: Chrysomelidae) are one of Africa’s most destructive pests of common bean and other leguminous crops. The beetles are widely distributed in Africa where they are estimated to cause annual crop yield losses of 116,400 tons of crop yields in sub-Saharan Africa. Despite their importance, little is known about the distribution, relative abundance and damage caused by bean leaf beetles in Uganda. As a result, the development of effective management methods has been hampered. We conducted surveys in six key Ugandan agro-ecological zones to determine the species distribution and relative abundance of bean leaf beetles. Findings indicate that leaf beetles belonging to 12 genera are present, including members of the genera <i>Afrophthalma</i> Medvedev, 1980, <i>Buphonella</i> Jacoby, 1903, <i>Chrysochrus</i> Chevrolat in Dejean, 1836, <i>Diacantha</i> Dejean, 1845, <i>Exosoma</i> Jacoby, 1903, <i>Lamprocopa</i> Hincks, 1949, <i>Lema</i> Fabricius, 1798, <i>Nisotra</i> Baly, 1864, <i>Neobarombiella</i> Bolz and Wagner, 2012, <i>Ootheca</i> Dejean, 1935, <i>Parasbecesta</i> Laboissière, 1940, and <i>Plagiodera</i> Dejean, 1835. We identified only three species belonging to the genus <i>Ootheca</i>: <i>O. mutabilis</i>, <i>O. proteus</i>, and <i>O. orientalis</i>. Seventy percent of all the beetles collected were <i>O. mutabilis</i> and these were present in all agro-ecological zones studied. The Northern Moist Farmlands (21.9%), West Nile Farmlands (12.9%), Central Wooded Savanna (4.4%) and Southern and Eastern Lake Kyoga Basin (1.4%) were the only agro-ecological zones where <i>O. proteus</i> was found. Only one specimen of <i>O. orientalis</i> was found at a single site in the Central Wooded Savanna. The Northern Moist Farmlands had a significantly (<i>p</i> < 0.05) higher bean leaf beetle density than the West Nile Farmlands and Southwestern Highlands. Similarly, the Northern Moist Farmlands had the highest beetle foliar damage per plant (1.15 ± 0.05), while the Southwestern Highlands had the lowest (0.03 ± 0.02). We provide the first information on <i>Ootheca</i> species distribution, abundance and damage in Uganda. Our findings provide a foundation for assessing the importance of <i>Ootheca</i> spp. as common bean pests in Uganda. |
| first_indexed | 2024-03-10T05:24:16Z |
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| issn | 2075-4450 |
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| series | Insects |
| spelling | doaj.art-0571297bac6a4d1c8df5db2be3480f5f2023-11-22T23:47:41ZengMDPI AGInsects2075-44502021-11-011211104810.3390/insects12111048Distribution and Relative Abundance of Bean Leaf Beetles (<i>Ootheca</i> spp.) (Insecta: Coleoptera: Chrysomelidae) in UgandaCharles Halerimana0Samuel Kyamanywa1Samuel Olaboro2Pamela Paparu3Stanley T. Nkalubo4John Colvin5Robert A. Cheke6Thomas Wagner7Susan E. Seal8Darren J. Kriticos9Michael H. Otim10Department of Agricultural Production, College of Agricultural and Environmental Sciences, Makerere University, Kampala P.O. Box 7062, UgandaDepartment of Agricultural Production, College of Agricultural and Environmental Sciences, Makerere University, Kampala P.O. Box 7062, UgandaNational Crops Resources Research Institute, Kampala P.O. Box 7084, UgandaNational Crops Resources Research Institute, Kampala P.O. Box 7084, UgandaNational Crops Resources Research Institute, Kampala P.O. Box 7084, UgandaNatural Resources Institute, University of Greenwich at Medway, Central Avenue, Chatham Maritime, Kent ME4 4TB, UKNatural Resources Institute, University of Greenwich at Medway, Central Avenue, Chatham Maritime, Kent ME4 4TB, UKInstitut für Integrierte Naturwissenschaften—Biologie, Universität Koblenz-Landau, Universitätstrasse 1, 56070 Koblenz, GermanyNatural Resources Institute, University of Greenwich at Medway, Central Avenue, Chatham Maritime, Kent ME4 4TB, UKCommonwealth Scientific and Industrial Research Organization GPO 1700, Canberra 2601, AustraliaNational Crops Resources Research Institute, Kampala P.O. Box 7084, UgandaBean leaf beetles (<i>Ootheca</i> spp.) (Insecta: Coleoptera: Chrysomelidae) are one of Africa’s most destructive pests of common bean and other leguminous crops. The beetles are widely distributed in Africa where they are estimated to cause annual crop yield losses of 116,400 tons of crop yields in sub-Saharan Africa. Despite their importance, little is known about the distribution, relative abundance and damage caused by bean leaf beetles in Uganda. As a result, the development of effective management methods has been hampered. We conducted surveys in six key Ugandan agro-ecological zones to determine the species distribution and relative abundance of bean leaf beetles. Findings indicate that leaf beetles belonging to 12 genera are present, including members of the genera <i>Afrophthalma</i> Medvedev, 1980, <i>Buphonella</i> Jacoby, 1903, <i>Chrysochrus</i> Chevrolat in Dejean, 1836, <i>Diacantha</i> Dejean, 1845, <i>Exosoma</i> Jacoby, 1903, <i>Lamprocopa</i> Hincks, 1949, <i>Lema</i> Fabricius, 1798, <i>Nisotra</i> Baly, 1864, <i>Neobarombiella</i> Bolz and Wagner, 2012, <i>Ootheca</i> Dejean, 1935, <i>Parasbecesta</i> Laboissière, 1940, and <i>Plagiodera</i> Dejean, 1835. We identified only three species belonging to the genus <i>Ootheca</i>: <i>O. mutabilis</i>, <i>O. proteus</i>, and <i>O. orientalis</i>. Seventy percent of all the beetles collected were <i>O. mutabilis</i> and these were present in all agro-ecological zones studied. The Northern Moist Farmlands (21.9%), West Nile Farmlands (12.9%), Central Wooded Savanna (4.4%) and Southern and Eastern Lake Kyoga Basin (1.4%) were the only agro-ecological zones where <i>O. proteus</i> was found. Only one specimen of <i>O. orientalis</i> was found at a single site in the Central Wooded Savanna. The Northern Moist Farmlands had a significantly (<i>p</i> < 0.05) higher bean leaf beetle density than the West Nile Farmlands and Southwestern Highlands. Similarly, the Northern Moist Farmlands had the highest beetle foliar damage per plant (1.15 ± 0.05), while the Southwestern Highlands had the lowest (0.03 ± 0.02). We provide the first information on <i>Ootheca</i> species distribution, abundance and damage in Uganda. Our findings provide a foundation for assessing the importance of <i>Ootheca</i> spp. as common bean pests in Uganda.https://www.mdpi.com/2075-4450/12/11/1048abundanceagro-ecological zonecommon bean<i>Ootheca</i> spp.damage |
| spellingShingle | Charles Halerimana Samuel Kyamanywa Samuel Olaboro Pamela Paparu Stanley T. Nkalubo John Colvin Robert A. Cheke Thomas Wagner Susan E. Seal Darren J. Kriticos Michael H. Otim Distribution and Relative Abundance of Bean Leaf Beetles (<i>Ootheca</i> spp.) (Insecta: Coleoptera: Chrysomelidae) in Uganda Insects abundance agro-ecological zone common bean <i>Ootheca</i> spp. damage |
| title | Distribution and Relative Abundance of Bean Leaf Beetles (<i>Ootheca</i> spp.) (Insecta: Coleoptera: Chrysomelidae) in Uganda |
| title_full | Distribution and Relative Abundance of Bean Leaf Beetles (<i>Ootheca</i> spp.) (Insecta: Coleoptera: Chrysomelidae) in Uganda |
| title_fullStr | Distribution and Relative Abundance of Bean Leaf Beetles (<i>Ootheca</i> spp.) (Insecta: Coleoptera: Chrysomelidae) in Uganda |
| title_full_unstemmed | Distribution and Relative Abundance of Bean Leaf Beetles (<i>Ootheca</i> spp.) (Insecta: Coleoptera: Chrysomelidae) in Uganda |
| title_short | Distribution and Relative Abundance of Bean Leaf Beetles (<i>Ootheca</i> spp.) (Insecta: Coleoptera: Chrysomelidae) in Uganda |
| title_sort | distribution and relative abundance of bean leaf beetles i ootheca i spp insecta coleoptera chrysomelidae in uganda |
| topic | abundance agro-ecological zone common bean <i>Ootheca</i> spp. damage |
| url | https://www.mdpi.com/2075-4450/12/11/1048 |
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