Population analysis of white grubs (Coleoptera: Melolonthidae) throughout the Brazilian Pampa biome
ABSTRACT The replacement of natural grassland by cultivated areas might favor the increase in abundance of some root-feeding species such as the white grubs, which may become a constraint for field crop production. This research aimed to assay the population density and geographical distribution of...
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Sociedade Brasileira de Entomologia
2018-12-01
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| Series: | Revista Brasileira de Entomologia |
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| Online Access: | http://www.scielo.br/pdf/rbent/v62n4/0085-5626-rbent-62-04-0275.pdf |
| _version_ | 1819008510368677888 |
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| author | Ivair Valmorbida Mariana Alejandra Cherman Clérison Régis Perini Lucas de Arruda Cavallin Jerson Vanderlei Carús Guedes |
| author_facet | Ivair Valmorbida Mariana Alejandra Cherman Clérison Régis Perini Lucas de Arruda Cavallin Jerson Vanderlei Carús Guedes |
| author_sort | Ivair Valmorbida |
| collection | DOAJ |
| description | ABSTRACT The replacement of natural grassland by cultivated areas might favor the increase in abundance of some root-feeding species such as the white grubs, which may become a constraint for field crop production. This research aimed to assay the population density and geographical distribution of white grubs pest and other species in natural grassland and cultivated areas throughout the Brazilian Pampa biome. White grubs were sampled in 18 locations in both landscape use types and identified. Population density (number of larvae m-2) was calculated for each recorded species and sorted within two groups (pest species and other species), compared between natural grasslands and cultivated areas, as well as among locations. A dendrogram to evaluate species similarity among locations was built based on combined data obtained from both landscape use types throughout the region. In total, 31 species were found in the Brazilian Pampa, and four of them are considered as crop pests: Diloboderus abderus (Sturm, 1826), Euetheola humilis (Burmeister, 1847), Lyogenys fusca (Blanchard, 1830), and Phyllophaga triticophaga Morón & Salvadori, 1998. The average population density of pest species in cultivated areas was less than five larvae m-2, at most of locations. Some species had a wide geographical distribution (e.g. D. abderus and Cyclocephala modesta Burmeister), while other melolontids occurred at only one location. The knowledge of which white grub species are present in a field and its population densities assist farmers to take proper management decisions. |
| first_indexed | 2024-12-21T00:41:37Z |
| format | Article |
| id | doaj.art-e72d1734c05346b5ab81149f05634d40 |
| institution | Directory Open Access Journal |
| issn | 1806-9665 |
| language | English |
| last_indexed | 2024-12-21T00:41:37Z |
| publishDate | 2018-12-01 |
| publisher | Sociedade Brasileira de Entomologia |
| record_format | Article |
| series | Revista Brasileira de Entomologia |
| spelling | doaj.art-e72d1734c05346b5ab81149f05634d402022-12-21T19:21:40ZengSociedade Brasileira de EntomologiaRevista Brasileira de Entomologia1806-96652018-12-0162427528210.1016/j.rbe.2018.08.002Population analysis of white grubs (Coleoptera: Melolonthidae) throughout the Brazilian Pampa biomeIvair ValmorbidaMariana Alejandra ChermanClérison Régis PeriniLucas de Arruda CavallinJerson Vanderlei Carús GuedesABSTRACT The replacement of natural grassland by cultivated areas might favor the increase in abundance of some root-feeding species such as the white grubs, which may become a constraint for field crop production. This research aimed to assay the population density and geographical distribution of white grubs pest and other species in natural grassland and cultivated areas throughout the Brazilian Pampa biome. White grubs were sampled in 18 locations in both landscape use types and identified. Population density (number of larvae m-2) was calculated for each recorded species and sorted within two groups (pest species and other species), compared between natural grasslands and cultivated areas, as well as among locations. A dendrogram to evaluate species similarity among locations was built based on combined data obtained from both landscape use types throughout the region. In total, 31 species were found in the Brazilian Pampa, and four of them are considered as crop pests: Diloboderus abderus (Sturm, 1826), Euetheola humilis (Burmeister, 1847), Lyogenys fusca (Blanchard, 1830), and Phyllophaga triticophaga Morón & Salvadori, 1998. The average population density of pest species in cultivated areas was less than five larvae m-2, at most of locations. Some species had a wide geographical distribution (e.g. D. abderus and Cyclocephala modesta Burmeister), while other melolontids occurred at only one location. The knowledge of which white grub species are present in a field and its population densities assist farmers to take proper management decisions.http://www.scielo.br/pdf/rbent/v62n4/0085-5626-rbent-62-04-0275.pdfPopulation densityDiloboderus abderusPlectrisGrasslandsCultivated areas |
| spellingShingle | Ivair Valmorbida Mariana Alejandra Cherman Clérison Régis Perini Lucas de Arruda Cavallin Jerson Vanderlei Carús Guedes Population analysis of white grubs (Coleoptera: Melolonthidae) throughout the Brazilian Pampa biome Revista Brasileira de Entomologia Population density Diloboderus abderus Plectris Grasslands Cultivated areas |
| title | Population analysis of white grubs (Coleoptera: Melolonthidae) throughout the Brazilian Pampa biome |
| title_full | Population analysis of white grubs (Coleoptera: Melolonthidae) throughout the Brazilian Pampa biome |
| title_fullStr | Population analysis of white grubs (Coleoptera: Melolonthidae) throughout the Brazilian Pampa biome |
| title_full_unstemmed | Population analysis of white grubs (Coleoptera: Melolonthidae) throughout the Brazilian Pampa biome |
| title_short | Population analysis of white grubs (Coleoptera: Melolonthidae) throughout the Brazilian Pampa biome |
| title_sort | population analysis of white grubs coleoptera melolonthidae throughout the brazilian pampa biome |
| topic | Population density Diloboderus abderus Plectris Grasslands Cultivated areas |
| url | http://www.scielo.br/pdf/rbent/v62n4/0085-5626-rbent-62-04-0275.pdf |
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