Forage quality still causing problems on many farms

On my travels around the country I have begun to see more and more mould/spoilage in pits of Grass Silage, Maize and Whole crop.
This issue in my opinion has been brought about by over wilting of silages and delayed harvesting of maize and grain crops. Something that has also become a problem is incorrectly setup rakes and mowers, bringing clay into swaths during silage making.