Final report. Nematode survey
A survey was conducted on 205 soil samples collected from 12 sites in Colombia of different crops, including beans on which the research was mainly focussed (132 soil samples from 10 sites), in order to characterize problems of nematodes in the different regions, make comparisons, and suggest resear...
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| Formato: | Informe técnico |
| Lenguaje: | Inglés |
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International Center for Tropical Agriculture
1978
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/71825 |
| _version_ | 1855520881999085568 |
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| author | Riedel, RM |
| author_browse | Riedel, RM |
| author_facet | Riedel, RM |
| author_sort | Riedel, RM |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | A survey was conducted on 205 soil samples collected from 12 sites in Colombia of different crops, including beans on which the research was mainly focussed (132 soil samples from 10 sites), in order to characterize problems of nematodes in the different regions, make comparisons, and suggest research priorities and control measures. Results indicate that Meloidogyne spp. (M. hapla at higher elevations, M. incognita and M. arenaria at warmer temp., and M. javanica at very warm temp.) is the most limiting nematode for bean production and the most widespread. It is followed in importance by Pratylenchus spp. (P. penetrans, P. crenatus, P. vulnus, P. zeae, and P. brachyurus). In more restricted areas species of Helicotylenchus, Ziphinema, Longidorus, Cacopaurus, Scutellonema, and Rotylenchus were identified. Crop losses caused by Meloidogyne can be evaluated in field trials with nematocides like oxamyl (2-4 lb a.i./ac at planting and 1 lb a.i./ac after 3 wk. as foliar spray). Sources of var. resistance to M. incognita and M. javanica have been identified. Soil temp. alters plant resistance; therefore, this factor must be taken into account by breeding programs. Weed control with herbicides should be investigated as a means of controlling nematodes. Research programs on the control of Meloidogyne should be appicable to Pratylenchus. In the case of the rest of the genera mentioned, it is important to determine the economic damage they can cause. The results of another survey on the collection and identification of nematodes in soil and bean root samples from 8 sites in Colombia are included. (CIAT) |
| format | Informe técnico |
| id | CGSpace71825 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1978 |
| publishDateRange | 1978 |
| publishDateSort | 1978 |
| publisher | International Center for Tropical Agriculture |
| publisherStr | International Center for Tropical Agriculture |
| record_format | dspace |
| spelling | CGSpace718252025-11-05T17:30:37Z Final report. Nematode survey Riedel, RM phaseolus vulgaris nematodes meloidogyne incognita crop losses herbicides soil temperature resistance noxious animals pests nematodos perdidas en el cultivo herbicidas temperatura del suelo resistencia animales nocivos plagas A survey was conducted on 205 soil samples collected from 12 sites in Colombia of different crops, including beans on which the research was mainly focussed (132 soil samples from 10 sites), in order to characterize problems of nematodes in the different regions, make comparisons, and suggest research priorities and control measures. Results indicate that Meloidogyne spp. (M. hapla at higher elevations, M. incognita and M. arenaria at warmer temp., and M. javanica at very warm temp.) is the most limiting nematode for bean production and the most widespread. It is followed in importance by Pratylenchus spp. (P. penetrans, P. crenatus, P. vulnus, P. zeae, and P. brachyurus). In more restricted areas species of Helicotylenchus, Ziphinema, Longidorus, Cacopaurus, Scutellonema, and Rotylenchus were identified. Crop losses caused by Meloidogyne can be evaluated in field trials with nematocides like oxamyl (2-4 lb a.i./ac at planting and 1 lb a.i./ac after 3 wk. as foliar spray). Sources of var. resistance to M. incognita and M. javanica have been identified. Soil temp. alters plant resistance; therefore, this factor must be taken into account by breeding programs. Weed control with herbicides should be investigated as a means of controlling nematodes. Research programs on the control of Meloidogyne should be appicable to Pratylenchus. In the case of the rest of the genera mentioned, it is important to determine the economic damage they can cause. The results of another survey on the collection and identification of nematodes in soil and bean root samples from 8 sites in Colombia are included. (CIAT) 1978 2016-02-29T17:12:56Z 2016-02-29T17:12:56Z Report https://hdl.handle.net/10568/71825 en Open Access application/pdf International Center for Tropical Agriculture RIEDEL, R.M. 1978. Final report. Nematode survey. Centro Internacional de Agricultura Tropical (CIAT), Cali, CO. 45 p.. |
| spellingShingle | phaseolus vulgaris nematodes meloidogyne incognita crop losses herbicides soil temperature resistance noxious animals pests nematodos perdidas en el cultivo herbicidas temperatura del suelo resistencia animales nocivos plagas Riedel, RM Final report. Nematode survey |
| title | Final report. Nematode survey |
| title_full | Final report. Nematode survey |
| title_fullStr | Final report. Nematode survey |
| title_full_unstemmed | Final report. Nematode survey |
| title_short | Final report. Nematode survey |
| title_sort | final report nematode survey |
| topic | phaseolus vulgaris nematodes meloidogyne incognita crop losses herbicides soil temperature resistance noxious animals pests nematodos perdidas en el cultivo herbicidas temperatura del suelo resistencia animales nocivos plagas |
| url | https://hdl.handle.net/10568/71825 |
| work_keys_str_mv | AT riedelrm finalreportnematodesurvey |