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Chapter 18. JC Zadoks. 1987. The concept of thresholds: warning, action and damage thresholds. Pages 168-175.
Keywords: injury, damage, loss, the definition of thresholds, economic injury threshold, warning threshold, agronomic difficulties in using thresholds, Puccinia striiforms, Septoria nodorum, phytopathological difficulties in using thresholds, sliding damage thresholds, economic difficulties in using thresholds, social difficulties in using thresholds, thresholds or added value?
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