[Reason077]

It is certainly unfair to growers if supermarkets are reneging on purchase agreements. But the link you sent has just a single anecdotal "case study", and the site seems to be a marketing site for an organic food box supplier. Hardly by itself evidence of a systemic problem.

Besides, if a purchase agreement falls though with produce already grown, normally what happens is the produce is sold on the wholesale market instead. In that case, growers might receive a lower price, perhaps resulting in a loss, but that's not as bad as leaving it "to rot" and getting nothing at all.

Produce would typically only be dumped in the case of a huge market glut (when prices are so low that it is not even worth harvesting/transporting them), or if there are labour shortages making it difficult or uneconomical to harvest.