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Colby, Kansas | Yes, that's stripe rust. It's really blown up in the northern tier of counties this past week. This guide compares some of the products on the market and has details for the harvest interval timings.
https://bookstore.ksre.ksu.edu/download/foliar-fungicide-efficacy-ra...
Given current economics and yield prospects in a lot of the state, for my money I would likely be going with a generic tebuconozole. Our research has shown that residual activity with tebuconozole is quite good. Generally getting 21 days of protection.
Zenda and Wolverene are both rated intermediate (6 on a 1-9 scale) on stripe rust. I've not walked a lot of those two, but most other varieties in the intermediate category that I've walked I would pull the trigger on.
Variety disease ratings:
https://bookstore.ksre.ksu.edu/pubs/kansas-wheat-variety-guide-2023_...
Edited by LHaag 5/19/2024 11:52
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Wheat fungicide question
