Pest Thresholds: Their Development and Use in Vineyards for Arthropod Management

摘要: Thresholds provide a quantitative basis upon which crop managers can decide whether arthropod pest populations are below, at, or exceeding level that warrants the expense of activities to reduce pests density. These interventions may be cultural, biological, chemical control practices population below economic threshold. an essential component IPM program, and their use lead significant reduction in pesticides applied crops lower costs production for farmers (Pedigo et al. 1986).