Persistent rain the culprit.
“In France, the situation has continued to deteriorate,” said Pierre Begoc of consultancy Agritel
In late spring, torrential rain, unusually low sunshine levels and widespread plant disease hampered growth of wheat grains.
In Germany, winter wheat yields could fall 10 to 20 percent from last year,
As in Germany, rain was raising concerns about quality downgrades to wheat crops in Poland.
Thanks to Mom2Kids for this link