This field survey guidance therefore provides easy-to-follow guidelines for technical personnel of national plant protection organizations (NPPOs), to survey Fusarium oxysporum f . sp . cubense Tropical Race 4 (FOC TR4). FOC TR4 is a major pest threatening global banana production, can cause 100 percent yield loss on a farm and is challenging and costly to manage. This document provides a protocol, with visuals, to aid in the monitoring, detection, sample
collection, and diagnostics of FOC TR4, ensuring effective phytosanitary decision-making to manage the pest risk and protect trade in plants and plant products.
