|
|
|
|
|
Gleason,Mark L.; Duttweiler,Katrina B.; Batzer,Jean C.; Taylor,S. Elwynn; Sentelhas,Paulo Cesar; Monteiro,José Eduardo Boffino Almeida; Gillespie,Terry J.. |
Disease-warning systems are decision support tools designed to help growers determine when to apply control measures to suppress crop diseases. Weather data are nearly ubiquitous inputs to warning systems. This contribution reviews ways in which weather data are gathered for use as inputs to disease-warning systems, and the associated logistical challenges. Grower-operated weather monitoring is contrasted with obtaining data from networks of weather stations, and the advantages and disadvantages of measuring vs. estimating weather data are discussed. Special emphasis is given to leaf wetness duration (LWD), not only because LWD data are inputs to many disease-warning systems but also because accurate data are uniquely challenging to obtain. It is concluded... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Integrated pest management; Site-specific weather data; Disease forecasting; Disease prediction; Sustainable agriculture. |
Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000700013 |
| |
|
|
Santos,Eduardo Alvarez; Sentelhas,Paulo Cesar; Pezzopane,José Eduardo Macedo; Angelocci,Luiz Roberto; Monteiro,José Eduardo Boffino Almeida. |
Despite the importance of leaf wetness duration for plant disease epidemiology, there has been little attention paid to research on how its variability relates to different cropping situations. The objective of this study was to evaluate the spatial variability of leaf wetness duration (LWD) in three crops, comparing these measurements with turfgrass LWD, obtained in a standard weather station. LWD was measured by electronic sensors in three crops with different canopy structures and leaf area: cotton, coffee and banana. For the cotton crop, cylindrical sensors were deployed at the lower third and on the top of the canopy, facing southwest. For the coffee crop, flat plate sensors were installed in the lower third of the canopy facing northeast and... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dew; Microclimate; Plant disease; Warning systems. |
Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000700005 |
| |
|
|
|