(July 22, 2008) - UK releases 2008 Kentucky Small Grain Variety Performance Test results; Pembroke fairs well

(May 7, 2008) - Check-off funded SRW wheat variety released to Kentucky producers

Changes in the Wheat Foliar Fungicide Status Quo

(Revised May 7, 2008) Recent weeks have been very hectic in terms of changes to the wheat foliar fungicide situation in Kentucky.  Much of what I am about to describe has its origin in EPA’s recent favorable response to a review of triazole chemistry. Without going into any details, new section 3 labels of triazole fungicides were held up for years due to questions regarding the environment and health risks associated with a common breakdown product of all triazole fungicides.  A favorable ruling by EPA in 2007 on this question opened the door for the section 3 labeling of new triazole fungicides. 

The Bayer fungicide, Proline (prothioconazole), labeled in the spring of 2007, was one of the first post-EPA-review triazoles to receive a section 3 label that could be used for disease management in wheat.  Then on April 21, 2008, EPA granted a section 3 label to two BASF fungicides containing the active ingredient, metconazole.  Caramba is straight metconazole and Multiva is a premix product of Caramba and Headline (pyraclostrobin). To my knowledge, neither of these products have received state approval as of this writing (May 7), but this should change shortly. However, due to the lateness of label approvals relative to the advanced stage of wheat development in Kentucky, it is likely that little or no Caramba or Multiva will applied to wheat in Kentucky this spring.

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If you need a copy of the Orius or Folicur labels, please contact us at info@kysmallgrains.org.