Preferences of Scirtothrips dorsalis Hood 1919 (Thysanoptera: Thripidae) for different structures of cotton (Gossypium hirsutum L) plants in the Magdalena warm valley of Colombia
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| Natura: | Artículo científico |
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Universidad Nacional de Colombia
2018
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| author | Everth Ebratt |
| author_facet | Everth Ebratt |
| contents | Preferences of Scirtothrips dorsalis Hood 1919 (Thysanoptera: Thripidae) for different structures of cotton (Gossypium hirsutum L) plants in the Magdalena warm valley of Colombia Everth Ebratt Andrés Rodríguez Buenaventura Monje Edgar Varón Helena Brochero Arturo Goldarazena Agrociencias Host Bolls Thrips Selectivity Thrips samples were collected from cotton crops in the Andean region of the Magdalena warm valley, an area represented by the Colombian departments of Tolima, Huila and Cundinamarca. Ten cotton plants were randomly selected per hectare in each plot. Five young leaves, five floral buds, five opened flowers and five bolls or fruits were inspected. Immature stages were separated from the adults and a first classification was made according to the present thrips morphotypes, separating the adults of possible S. dorsalis specimens from the others. T-Student and Kruskal-Wallis tests were performed in order to find statistical differences between the different evaluated variables. The selectivity of S. dorsalis for each plant structure was determined by Z tests, Spearman correlation analysis and the Bray-Curtis similarity index. Scirtothrips dorsalis was found in 77% (n = 46) of the inspected sites. The species exhibited greater affinity to the boll, followed by young leaves and buds. Opened flowers constituted a resource not frequented by the pest with a similarity range of I = 0.8 (<1). It is suggested that cotton plants are hosts to the thrips species; it means that the pest life cycle is highly associated to the cotton production in the Andean region. The importance of the results related to the cotton production and other crops associated to the insect species in the region is discussed. 2018 artículo científico 0120-9965 https://www.redalyc.org/articulo.oa?id=180358537006 https://www.redalyc.org/journal/1803/180358537006/ https://www.redalyc.org/journal/1803/180358537006/html/ https://www.redalyc.org/journal/1803/180358537006/180358537006.epub https://www.redalyc.org/journal/1803/180358537006/movil 10.15446/agron.colomb.v36n1.66714 en http://www.redalyc.org/revista.oa?id=1803 Agronomía Colombiana application/pdf Universidad Nacional de Colombia Agronomía Colombiana (Colombia) Num.1 Vol.36 |
| format | Artículo científico |
| id | redalyc_180358537006 |
| institution | Redalyc |
| language | en |
| publishDate | 2018 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | Preferences of Scirtothrips dorsalis Hood 1919 (Thysanoptera: Thripidae) for different structures of cotton (Gossypium hirsutum L) plants in the Magdalena warm valley of Colombia Everth Ebratt Agrociencias Host Bolls Thrips Selectivity Preferences of Scirtothrips dorsalis Hood 1919 (Thysanoptera: Thripidae) for different structures of cotton (Gossypium hirsutum L) plants in the Magdalena warm valley of Colombia Everth Ebratt Andrés Rodríguez Buenaventura Monje Edgar Varón Helena Brochero Arturo Goldarazena Agrociencias Host Bolls Thrips Selectivity Thrips samples were collected from cotton crops in the Andean region of the Magdalena warm valley, an area represented by the Colombian departments of Tolima, Huila and Cundinamarca. Ten cotton plants were randomly selected per hectare in each plot. Five young leaves, five floral buds, five opened flowers and five bolls or fruits were inspected. Immature stages were separated from the adults and a first classification was made according to the present thrips morphotypes, separating the adults of possible S. dorsalis specimens from the others. T-Student and Kruskal-Wallis tests were performed in order to find statistical differences between the different evaluated variables. The selectivity of S. dorsalis for each plant structure was determined by Z tests, Spearman correlation analysis and the Bray-Curtis similarity index. Scirtothrips dorsalis was found in 77% (n = 46) of the inspected sites. The species exhibited greater affinity to the boll, followed by young leaves and buds. Opened flowers constituted a resource not frequented by the pest with a similarity range of I = 0.8 (<1). It is suggested that cotton plants are hosts to the thrips species; it means that the pest life cycle is highly associated to the cotton production in the Andean region. The importance of the results related to the cotton production and other crops associated to the insect species in the region is discussed. 2018 artículo científico 0120-9965 https://www.redalyc.org/articulo.oa?id=180358537006 https://www.redalyc.org/journal/1803/180358537006/ https://www.redalyc.org/journal/1803/180358537006/html/ https://www.redalyc.org/journal/1803/180358537006/180358537006.epub https://www.redalyc.org/journal/1803/180358537006/movil 10.15446/agron.colomb.v36n1.66714 en http://www.redalyc.org/revista.oa?id=1803 Agronomía Colombiana application/pdf Universidad Nacional de Colombia Agronomía Colombiana (Colombia) Num.1 Vol.36 |
| title | Preferences of Scirtothrips dorsalis Hood 1919 (Thysanoptera: Thripidae) for different structures of cotton (Gossypium hirsutum L) plants in the Magdalena warm valley of Colombia |
| topic | Agrociencias Host Bolls Thrips Selectivity |
| url | https://www.redalyc.org/articulo.oa?id=180358537006 https://www.redalyc.org/journal/1803/180358537006/ https://www.redalyc.org/journal/1803/180358537006/html/ https://www.redalyc.org/journal/1803/180358537006/180358537006.epub https://www.redalyc.org/journal/1803/180358537006/movil |