Economic damage of grassland spittlebugs (Homoptera Cercopidae) in Colombia: a first approximation of impact on animal production in Brachiaria decumbens
Using a simulation model as an analysis tool, the economic impact of spittlebugs in pastures of Colombia was quantified in terms of animal production. Three levels of abundance (10, 25, 50 adults/m2) and farm area affected (25, 50, 100%) were evaluated using data obtained in Brazil for Notozulia ent...
| Main Authors: | , |
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| Format: | Journal Article |
| Language: | Inglés |
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Springer
2002
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/938 |
| _version_ | 1855526969161023488 |
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| author | Holmann, Federico J. Peck, D. |
| author_browse | Holmann, Federico J. Peck, D. |
| author_facet | Holmann, Federico J. Peck, D. |
| author_sort | Holmann, Federico J. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Using a simulation model as an analysis tool, the economic impact of spittlebugs in pastures of Colombia was quantified in terms of animal production. Three levels of abundance (10, 25, 50 adults/m2) and farm area affected (25, 50, 100%) were evaluated using data obtained in Brazil for Notozulia entreriana (Berg) on Brachiaria decumbens Stapf. The model considered dual-purpose production systems in two contrasting ecosystems: (1) the dry tropics, characterized by a well defined, 6-month rainy season and (2) the humid tropics, characterized by uniform rainfall distribution throughout the year. Compared to healthy pastures, stocking rate, milk and meat productivity decreased 1-8, 8-34 and 38-54%, respectively, at low, intermediate and high abundance levels, depending on farm area infested. The cost of producing milk and meat increased 0-4, 3-16 and 18-30% at the same infestation levels, causing net income to decrease 3-16, 17-69 and 67-100%. At the regional level, economic damage in the 1,140,000 ha sown to grasses susceptible to spittlebugs in the humid tropics of Colombia ranged from US$7-25, 28-36 and 39-47 million/yr. In the 4,720,000 ha of susceptible grasses in the dry tropics, economic damage was US$33-118, 132-175 and 228-273 million/yr. The investment required to develop grass varieties resistant to spittlebugs and adapted to soils with low to intermediate fertility (US$6 million over 12 yr) is low compared with the economic damage caused by spittlebugs in Colombia, and therefore presents a major economic incentive for support of research on varietal improvement and spittlebug management. |
| format | Journal Article |
| id | CGSpace938 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2002 |
| publishDateRange | 2002 |
| publishDateSort | 2002 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace9382025-06-13T04:20:14Z Economic damage of grassland spittlebugs (Homoptera Cercopidae) in Colombia: a first approximation of impact on animal production in Brachiaria decumbens Holmann, Federico J. Peck, D. pests of plants feed grasses cercopidae animal production Using a simulation model as an analysis tool, the economic impact of spittlebugs in pastures of Colombia was quantified in terms of animal production. Three levels of abundance (10, 25, 50 adults/m2) and farm area affected (25, 50, 100%) were evaluated using data obtained in Brazil for Notozulia entreriana (Berg) on Brachiaria decumbens Stapf. The model considered dual-purpose production systems in two contrasting ecosystems: (1) the dry tropics, characterized by a well defined, 6-month rainy season and (2) the humid tropics, characterized by uniform rainfall distribution throughout the year. Compared to healthy pastures, stocking rate, milk and meat productivity decreased 1-8, 8-34 and 38-54%, respectively, at low, intermediate and high abundance levels, depending on farm area infested. The cost of producing milk and meat increased 0-4, 3-16 and 18-30% at the same infestation levels, causing net income to decrease 3-16, 17-69 and 67-100%. At the regional level, economic damage in the 1,140,000 ha sown to grasses susceptible to spittlebugs in the humid tropics of Colombia ranged from US$7-25, 28-36 and 39-47 million/yr. In the 4,720,000 ha of susceptible grasses in the dry tropics, economic damage was US$33-118, 132-175 and 228-273 million/yr. The investment required to develop grass varieties resistant to spittlebugs and adapted to soils with low to intermediate fertility (US$6 million over 12 yr) is low compared with the economic damage caused by spittlebugs in Colombia, and therefore presents a major economic incentive for support of research on varietal improvement and spittlebug management. 2002-06-15 2010-03-28T09:33:19Z 2010-03-28T09:33:19Z Journal Article https://hdl.handle.net/10568/938 en Open Access Springer Holmann, F.; Peck, D. 2002. Economic damage caused by spittlebugs (Homoptera: Cercopidae) in Colombia: a first approximation of impact on animal production in Brachiaria decumbens pastures. Neotropical Entomology. 31(2): 275-284. |
| spellingShingle | pests of plants feed grasses cercopidae animal production Holmann, Federico J. Peck, D. Economic damage of grassland spittlebugs (Homoptera Cercopidae) in Colombia: a first approximation of impact on animal production in Brachiaria decumbens |
| title | Economic damage of grassland spittlebugs (Homoptera Cercopidae) in Colombia: a first approximation of impact on animal production in Brachiaria decumbens |
| title_full | Economic damage of grassland spittlebugs (Homoptera Cercopidae) in Colombia: a first approximation of impact on animal production in Brachiaria decumbens |
| title_fullStr | Economic damage of grassland spittlebugs (Homoptera Cercopidae) in Colombia: a first approximation of impact on animal production in Brachiaria decumbens |
| title_full_unstemmed | Economic damage of grassland spittlebugs (Homoptera Cercopidae) in Colombia: a first approximation of impact on animal production in Brachiaria decumbens |
| title_short | Economic damage of grassland spittlebugs (Homoptera Cercopidae) in Colombia: a first approximation of impact on animal production in Brachiaria decumbens |
| title_sort | economic damage of grassland spittlebugs homoptera cercopidae in colombia a first approximation of impact on animal production in brachiaria decumbens |
| topic | pests of plants feed grasses cercopidae animal production |
| url | https://hdl.handle.net/10568/938 |
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