Quadris Fungicide Use in Tobacco Production

Darrell Hensley, University of Tennessee/Agricultural Extension Service Entomology & Plant Pathology

Quadris fungicide (azoxystrobin) recently received a full federal label for use in Tobacco Production. Earlier this season, several select counties in Tennessee did have a SLN for the use of Quadris in Tobacco production. However, now Quadris is labeled for use in tobacco production for control of blue mold, frog-eye leafspot and target spot.

Quadris should not be applied as a curative and should be applied prior to the onset of blue mold. If blue mold is present in the field, initiate applications with other control products. Quadris may be applied in the formulation rate range of 6 to 12 floz or 0.1 to 0.2 lbs active ingredient per acre. For Tobacco production, do not apply more than 0.52 lbs active ingredient per acre per season. Do not mix with Thiodan (endosulfan containing products). Tank mixing Quadris with insecticides formulated as ECs or containing high amounts of solvents, may cause some crop injury. Quadris may be applied up to the day of harvest. Quadris may enhance weather flecking on the leaves of certain tobacco types.



http://web.utk.edu/~extepp/whats/wh2006/Issue-9-2006.htm

Southern IPM Center
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