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Rainy weather has delayed tobacco transplanting for many producers, and this means that many growers are holding plants until conditions allow for setting of the crop. As plants are held later in May, we tend to see a greater threat from Pythium root rot, and our standard recommendation would be to treat preventively with Terramaster 4EC. However, the Section 3 label states that this fungicide cannot be applied any later than 8 weeks after seeding, and this could pose a problem to those producers who are forced to keep plants on float beds as they await a goodtime to transplant. Fortunately, UK, Chemtura, the manufacturer of Terramaster, and the Kentucky Department of Agriculture were able to work together to find a solution. To address our current situation, farmers have been granted a Special Local Need (24(c)) label that allows application of Terramaster beyond the original restriction of 8 weeks after seeding. The new 24 (c) now allows Terramaster to be applied up to 5 days before transplanting so long as the seasonal limit of 3.8 fl. oz. per 100 gallons of float water has not been exceeded. It is important that growers have a copy of the 24(c) in their possession at the time of application; this can be found at www.cdms.net, or stop by the Trimble County Extension Office for a copy. Call us at 502-255-7188 and we will be glad to mail you a copy of the label.
Michael Pyles is Trimble County’s Cooperative Extension agent for agriculture.