Someone uploaded the photo on Twitter, and was apparently immediately harassed by people who accused him/her of spreading "baseless rumors". So I won't link his/her tweet, as a precaution, although I would like to give credit. The photo looks unaltered.
From the very first year of the nuclear accident in 2011, Fukushima Prefecture was using children to push peaches grown in Fukushima. Back then, those students from Fukushima who went to Yokohama (in Kanagawa Prefecture) on a school trip were promoting Fukushima peaches in a park in Yokohama, telling the passers-by how delicious the peaches were.
Nothing has changed, and just like in the first year of the nuclear accident, and the 2nd year, the pop group TOKIO is busy promoting "Eat and Support" by eating Fukushima peaches again this year:
Checking the radiation monitoring site by Fukushima Prefecture (in English), cesium-134 is no longer detected (with the detection limit of about 4 Bq/kg), and the max cesium-137 is 4.67 Bq/kg.
The highest amount of radioactive cesium in peaches from Fukushima in 2011 was 150 Bq/kg from peaches in Date City. The provisional safety limit was 500 Bq/kg then, so these peaches were deemed "safe".
Fruit farmers in Fukushima had no problem growing, harvesting and selling peaches, apples, pears, persimmons in the very first year of the accident. They complained that their fruits didn't get the price they used to get before the nuclear accident, and said they were suffering the "baseless rumors".
They have continued to produce ever since. With the strong backing from the Abe administration and in particular from Ms. Masako Mori, Minister in charge of consumer affairs and of dealing with declining number of children in Japan, who wants to enact a law to force retailers to carry Fukushima produce, Fukushima farmers can continue to blame those fickle consumers in the rest of the country who won't buy their stuff for spreading "baseless rumors".
Checking the radiation monitoring site by Japan Chemical Analysis Center, there are only 8 cases of measuring any kind of fruits, and they are all in Hokkaido. The max Cs-137 content was found in grapefruits in 1994, at 0.14 Bq/kg.