Why is fluroxypyr in the Pixxaro formulation, surely if you apply this product in cold conditions the fluroxypyr is useless?

The fluroxypyr works with the Arylex to deliver the wide spectrum of weeds controlled by Pixxaro EC. Extensive product development showed that compared to Arylex alone, the combination of Arylex and Fluroxypyr delivered a wider weed spectrum and more robust control. Fluroxypyr does have activity in cold conditions on a number of weeds including chickweed, hemp nettle, fumitory and polygonums.
Arylex itself provides excellent control of cleavers in cold conditions.