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- Title
Thresholds for control of <em>Septoria</em> spp. in winter wheat based on precipitation and growth stage.
- Authors
Hansen, J. G.; Secher, B. J. M.; Jorgensen, L. N.; Welling, B.
- Abstract
A simple forecasting model for Septoria spp. in winter wheat was developed based on historical data (1980-89) including precipitation, growth stage, disease severity and yield response to fungicide treatments. The number of days with precipitation &ges;1 mm, calculated during a 30-day period starting at the beginning of stem elongation (GS 32), correlated well with attacks of Septoria spp. later in the season and with the yield response in trials with fungicide treatments. Seven or 8 days with rainfall &ges; 1 mm was suggested as a threshold for Septoria treatment. Model development and possible further improvements are discussed.
- Subjects
SEPTORIA; PRECIPITATION forecasting; WINTER wheat; PLANT growth; FUNGICIDES; PLANT physiology
- Publication
Plant Pathology, 1994, Vol 43, Issue 1, p183
- ISSN
0032-0862
- Publication type
Article
- DOI
10.1111/j.1365-3059.1994.tb00569.x