Reported issues with Inatreq (Univoq) applications May 2022?

There has been a spate of reported sprayer problems from applications of T2 sprays with new fungicide Univoq (active ingredient Inatreq) reportedly damaging rubber o-rings and nozzle diaphragms.

The issue seems to be sporadic, with many operators reporting they've had no problems. 

Guidance has been issued by Corteva to increase volume to 200 l/ha and to reduce tank mixes with other products.

See report in Farmers Weekly here -

Discussion on Facebook Group Farm Sprayer Operators here -

Thread on The Farming Forum here -

Twitter thread here -


What is your experience?  Share any updates or other info sources below...



See useful video on sprayer maintenance with Tom Robinson - 



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