Assessing Losses in Rice Due to Insects and Diseases in Bangladesh
A series of 17 crop-loss assessments was made under simulated farmers' field conditions in the three main rice cropping seasons of Bangladesh. The main insect pests were the rice stem borers (Tryporyza incertulas, Chilo polychrysa, Sesamia inferens) and in the monsoon rice gall midge (Pachydiplosis...
| Autores principales: | , , |
|---|---|
| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Cambridge University Press
1978
|
| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/166281 |
| _version_ | 1855513706985684992 |
|---|---|
| author | Catling, H.D. Alam, Shamsul Miah, S.A. |
| author_browse | Alam, Shamsul Catling, H.D. Miah, S.A. |
| author_facet | Catling, H.D. Alam, Shamsul Miah, S.A. |
| author_sort | Catling, H.D. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | A series of 17 crop-loss assessments was made under simulated farmers' field conditions in the three main rice cropping seasons of Bangladesh. The main insect pests were the rice stem borers (Tryporyza incertulas, Chilo polychrysa, Sesamia inferens) and in the monsoon rice gall midge (Pachydiplosis oryzae). Disease incidence was negligible. In the winter and early monsoon yield losses averaged 4 and 6% respectively, but economic benefit was only derived from insecticide application in the monsoon season, when there was an average yield loss of 16%. An economic threshold of 5–10% damaged tillers (‘deadhearts’ and ‘onion shoots’) was indicated for early attacks of stem borers and gall midge. Possible reasons are given for the usually low incidence of insect pests and diseases in Bangladesh rice. |
| format | Journal Article |
| id | CGSpace166281 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1978 |
| publishDateRange | 1978 |
| publishDateSort | 1978 |
| publisher | Cambridge University Press |
| publisherStr | Cambridge University Press |
| record_format | dspace |
| spelling | CGSpace1662812025-05-14T10:39:25Z Assessing Losses in Rice Due to Insects and Diseases in Bangladesh Catling, H.D. Alam, Shamsul Miah, S.A. losses insect pests diseases bangladesh A series of 17 crop-loss assessments was made under simulated farmers' field conditions in the three main rice cropping seasons of Bangladesh. The main insect pests were the rice stem borers (Tryporyza incertulas, Chilo polychrysa, Sesamia inferens) and in the monsoon rice gall midge (Pachydiplosis oryzae). Disease incidence was negligible. In the winter and early monsoon yield losses averaged 4 and 6% respectively, but economic benefit was only derived from insecticide application in the monsoon season, when there was an average yield loss of 16%. An economic threshold of 5–10% damaged tillers (‘deadhearts’ and ‘onion shoots’) was indicated for early attacks of stem borers and gall midge. Possible reasons are given for the usually low incidence of insect pests and diseases in Bangladesh rice. 1978-07 2024-12-19T12:56:06Z 2024-12-19T12:56:06Z Journal Article https://hdl.handle.net/10568/166281 en Cambridge University Press Catling, H. D.; Alam, Shamsul and Miah, S. A. 1978. Assessing Losses in Rice Due to Insects and Diseases in Bangladesh. Ex. Agric., Volume 14 no. 3 p. 277-287 |
| spellingShingle | losses insect pests diseases bangladesh Catling, H.D. Alam, Shamsul Miah, S.A. Assessing Losses in Rice Due to Insects and Diseases in Bangladesh |
| title | Assessing Losses in Rice Due to Insects and Diseases in Bangladesh |
| title_full | Assessing Losses in Rice Due to Insects and Diseases in Bangladesh |
| title_fullStr | Assessing Losses in Rice Due to Insects and Diseases in Bangladesh |
| title_full_unstemmed | Assessing Losses in Rice Due to Insects and Diseases in Bangladesh |
| title_short | Assessing Losses in Rice Due to Insects and Diseases in Bangladesh |
| title_sort | assessing losses in rice due to insects and diseases in bangladesh |
| topic | losses insect pests diseases bangladesh |
| url | https://hdl.handle.net/10568/166281 |
| work_keys_str_mv | AT catlinghd assessinglossesinriceduetoinsectsanddiseasesinbangladesh AT alamshamsul assessinglossesinriceduetoinsectsanddiseasesinbangladesh AT miahsa assessinglossesinriceduetoinsectsanddiseasesinbangladesh |